A 594234 DUPL URODELA -AND- CÆCILIA. FROM THE MEDICAL LIBRARY OF DR. CORYDON L. FORD. Bequeathed by Dr. Ford to the Medical Library of the University, June, 1894. 1 THE TAILED AMPHIBIANS, INCLUDING THE CÆCILIANS. A THESIS: PRESENTED TO THE FACULTY OF MICHIGAN UNI- VERSITY, BY W. H. SMITH. 1877. PRINTED AT THE HERALD PUBLISHING HOUSE, No. 209 Jefferson Avenue, Detroit, Mich. 1 5-1-36. He ☺ ΤΟ Prof. M. W. Harrington, MY ESTEEMED TEACHER AND FRIEND, TO WHOSE CARE, ZEAL, AND POWER OF INSPIRATION I OWE MUCH OF WHAT I MAY BE IN LIFE, IN GRAFEFUL RECOGNITION OF THE MANY FAVORS RECEIVED, THIS LITTLE VOLUME IS RESPECTFULLY INSCRIBED. 343237 PREFACE. In presenting this thesis the writer would state that it has been his aim to prepare a work which would facili- tate the study of these animals. In the effort to accom- plish this, he has not hesitated to use the works of pre- vious authors, and as some may wish to know how much has been taken from his predecessors, and others desire the means of fuller investigation, he has appended at the end a list of the works from which he has drawn material. While under more or less obligation to all these authorities, he feels that an especial mention is due to the Erpetologie generale, by Dumeril and Bibron; the article Amphibia in the Encyclopædia Brittanica, by Prof. Huxley, and the papers of Prof. Cope. In addition to the authors cited, he has availed himself of the specimens in the University collection, and so far as possible relied upon these rather than the writings of his predecessors, fully believing that book knowledge, however good, when compared to an examination of the object, is like the dry bones in the prophet's vision. So far as facilities were at hand, the descriptions and characters have been drawn from the object. Where • 6 PREFACE. this was not present, they have been abridged, some- times almost without change of language, from some pre- vious writer. Trusting that this little volume may be a help and a guide to others in the study of these animals, the author presents it, and asks for it a lenient criticism; for none more than he will probably ever realize its imperfections. ANN ARBOR, May 17, 1876. • · EXPLANATIONS. A number placed after a man's name refers to the list of authors given in the back part, but if placed after the name of an animal, as Amblystoma punctatum (14), in- dicates that in the work cited, in this case, De Kay's Natural History of New York, a drawing of the whole, or some part, of the animal will be found. Narial valvules, a term not generally used, refers to two small hemispherical swellings upon the tongue, which are fitted to the inner nares. *AMPHIBIA. Metamorphosis after birth, respiration branchial in young, pulmonary, or pulmonary and branchial in the adult, but always feeble in the lungs while active from the skin; lungs with few cells; blood cold; corpuscles oval nucleated; circulation incomplete; heart in adult with two auricles and a ventricle;+ reproduction ovipa- rous or ovoviviparous; foetus anamniate; allantois want- ing, unless the urinary bladder represents it; skin usual- ly naked or unarmed; skeleton incomplete, internal; cra- nium with two occipital condyles; nasal sacs and pharynx connected; nervous system cerebro-spinal; brain small; cerebellum scarcely visible; excrementitious and repro- ductive organs opening into a cloaca. Exclusive of the extinct order Labyrinthodontia, none of which have existed since the Trias, and which is char- acterized by the labyrinthine teeth, the salamandroid or rarely serpentiform body, and the presence of exoskel- *For anatomy see 5, 39 b, and 61. +A question has been raised as to the structure of the heart in the Perennibranchiata. Proteus, and also the Axolotl in all probability have only a single auricle. IO AMPHIBIA. etal plates, the following table gives the subdivisions of this class into orders: Feet present at least in front; body not vermiform. (a) Feet wanting; body vermiform (a) Adult tailless; body thick.. OPHIOMORPHA. ANOURA. (a) Tail always present; body lacertiloid.-URODELA. URODELA. CAUDATA, Leuckart. Body elongated, naked or without exoskeletal plates;* tail compressed or cylindrical, persistent throughout life; feet usually two pairs, rarely only one; radius and ulna, as well as tibia and fibula, not united into a single piece; external opening of the cloaca a longitudinal slit. Gills persistent throughout life. PERENNIBRANCHIATA. Gills caducoust. .CADUCIBRANCHIATA. Perennibranchiata. Amphipneusta, Oppel; Proteides, Leuckart, Harlan, Muller, Dumeril and Bibron; Phanerobranches, Dumer- *Amphiuma has very fine scales, and in this respect resembles the Cæcilians. *See at least apparent exception in the case of Siredon. TRACHYSTOMA. PROTEIDA. Skull. Elongated. Elongated. Præmaxillæ and Armed with horny Dentigerous. Dentaries. Præmaxillæ.· Maxillæ. 5 Nasal Bones, Palatines. plates. Ananchylosed. Ananchylosed. Rudimentary or Absent Absent. Absent. Wanting. AMPHIUMIDA. MENOPOMIDA. SALAMANDRIDA. Elongated. Dentigerous. Broad. Dentigerous. Anchylosed. Ananchylosed. Broad. Dentigerous. Separate or Anchylosed Large. Large. Large. Large. Present. Small Oval and beset With a single row of Absent. with dents en brosse. | teeth. Large. Wanting. Pterygoid. Prefrontals. Absent. Wanting. Two Anterior Cer-Distinct. atohyals. Vertebræ. Amphicœlous. United with Palatines. Elongated. Wanting. Present. Very broad. Present. Connate. Connate. Amphicœlous. Amphicœlous. Cartilaginous. Amphicœlous. Cartilaginous. Carpus and Tarsus Cartilaginous, the latter Cartilaginous wanting. Branchial Arches 4 Persistent. Pelvic Arch and Absent. Limbs. Anterior Meta- 5 carpal Bones. Phalanges of 4th Finger. Eyelids. Inner Layer of Choroid. .... None. Present in young, but changing relation in adult. Present or absent. Present or wanting. Amphi- or Opisthocœ- lous. Cartilaginous orOsseous 3 Persistent. 4 Persistent. May be reduced to 1st&2d 1st and 2d Persistent. Developed. Developed though small Well developed. 3 3. 4. Well developed. 4 1 1. 3. 3 None. None. Two. Two. Cartilaginous. Cartilaginous. Wanting. PERENNIBRANCHIATA. II il and Bibron; Pseudophydiens, De Blainville; Sirenideae, Tenney; Ichtyoides, Latreille. Branchiæ persistent; prefrontal, nasal and maxillary bones wanting; præmaxillæ not anchylosed together; pterygoid absent, or united with the palatines; verte- bræ amphicœlous; carpus and tarsus cartilaginous, the latter sometimes absent; eyes without lids, in some cases surrounded by circular ring resembling a lid. Pelvic arch and limbs wanting.. TRACHYSTOMA. Pelvic arch and limbs present. . . PROTEIDA. TRACHYSTOMA, Muller. Skull elongated; parasphenoid edentulous; vomer with teeth; præmaxillæ and dentaries armed with horny plates; pterygoidea wanting; occipital condyles sessile; first two ceratohyals distinct; branchiæ, bran- chial apertures, and four pairs of arches persistent; eyes surrounded by a circular lid; carpus cartilaginous; pectoral arch and limbs developed, pelvic wanting; ante- rior digits three or four. 12 PERENNIBRANCHIATA. Siren, Linnæus. Body elongated; vomero-palatine teeth in two groups, converging towards the front, but not united along the median line; tongue triangular, free anteriorly and lat- terally; head and neck confounded; mouth and eyes small; muzzle round; tail compressed, its basal part con- founded with the body. Toes four; color uniform, without stripes. S. LACERTINA. (1) Toes three; color not uniform; longitudinal bands or stripes present...S. STRIATA. (2) * (1) Siren Lacertina, Linnæus. Synonyms, Siren operculata, Beauvois, Cuvier, La- treille, Shaw, Daudin; Siren intermedia, Le Conte, Wag- *For the anatomy of this animal see 61. www PERENNIBRANCHIATA. 13 ler, Owen, Holbrook, Baird, Rusconi; Pseudobranchus intermedius, Gray. Color dark gray to brownish or bluish black; muz- zle, lower jaw, and feet somewhat lighter; head long, rounded; opercula of the gills usually fringed; trans- verse folds present upon the sides, and similar to the cos- tal folds of many Salamanders. Length eleven inches. Habitat Southern States. Le Conte (44 a) describes and figures as a separate species under the name of Siren intermedia, an animal which is probably only a variety of the lacertina. The only difference from this to be detected by a careful read- ing of his description is that it has the opercula of the gills fleshy, undivided and not fimbriated. Its habits, too, resemble both S. lacertina and S. striata, at times burrowing in the earth like the former, and then at oth- ers dwelling in mud and water like the latter. Siren striata, Le Conte, (44 b) Synonym, Pseudobranchus striatus, Gray. Body dark with a broad brown stripe on each side; below dotted with dark white, and with two longitudi- nal stripes paler than those higher up; opercula trilobed; head triangular, with rounded apex; transverse folds up- on the sides similar to those of the preceding species; limbs slender; toes three. Length nine inches. Habitat Southern States. 14 PERENNIBRANCHIATA. PROTEIDA, Muller, Skull elongated; parasphenoid edentulous; vomer with teeth along its anterior margin; præmaxillæ and dentaries dentigerous; pterygoid present and anchylosed with the palatines; occipital condyles sessile; first two ceratohyals connate; branchiæ, branchial apertures, and three pair of arches persistent; eyelids wanting; pelvic and pectoral arches and limbs developed; anterior digits three or four, fourth finger, or in this case the third, the first being absent, with a single phalanx. Toes, two or three on each foot; trunk very much elongated. PROTEUS (1) Toes four on each foot; trunk short and thick. MENOBRANCHUS (2) (1) Proteus, Laurenti. Teeth in the upper jaw in four rows converging towards the front, or the two on each side uniting medi- ally with the corresponding rows of the other side; tongue small ovate, free anteriorly and laterally; eyes concealed; muzzle truncate and shaped like a duck's bill; toes three in front and two behind. But one species is ordinarily recognized as belonging to this genus. Cope (24, 0) however, from characters J I 1 PERENNIBRANCHIATA. 15 of specimens in Prof. Hyrtl's private museum in Vien- na, gives the following: "A. Two condyles on the o. o. supraoccipitale. Lon- gitudinal and transverse occipital crests none. Verte- bræ 23 Præmaxillary teeth seven upon each side, no teeth on the o. operculare. From coronoid process to angle of ramus nearly as long as from coronoid to symphysis. Muzzle narrowed, canthus rostralis weak. A. A. No condyles on the supraoccipitale. ZOISII. I. Twenty-three dorsal vertebræ; an occipital crest. Præmaxillary teeth eight, mandibulars twenty-one, a few operculars. Coronoid process scarcely developed. Muzzle, and hence the o. o. frontalia exceedingly slen- der; latter with the parietals convex (from drying?) CARRARAE. II. Twenty-five to six dorsal vertebræ; a longitudin- al occipital crest. a. No teeth on the o. operculare; præmaxillaries 8-9. 21-2 Mandibulars; from coronoid process to angle much shorter than from former to symphysis; no groove below coronoid process. Muzzle longer than following; o. o. frontalia concave medially, parietalia plane; can- thus rostralis strong.. • XANTHOSTICHUS. a. a. Teeth on operculare; præmaxillaries 8. Man- dibulars 21; from coronoid to angle much shorter than from former to symphysis; groove below coronoid ex- tending anteriorly; muzzle shorter; frontals plane, parie- tals, and occipitals concave; canthus strong. SCHREIBERSII. a. a. a. Teeth on operculare, præmaxillary teeth ten. 9. Twenty-nine (four) mandibulars; coronoid without 16 PERENNIBRANCHIATA. * groove below, much nearer angle mandible than sym- physis; muzzle long, frontals narrow plane; canthus not strong. ANGUINUS. Zoisii is the stoutest in proportion to its length. P. carrarae is from Dalmatia, while the others are from Car- inthia. A specimen like P. xanthostichus, but with nine præmaxillary teeth has been named Freyeri, and one very near anguinus with twenty-four mandibulars, has been named Haidingerii." Cope is not alone in holding the view that there are more than one species of Proteus. Freyer* in 1846 claim- ed two, and Fitzingert in 1857,described the following seven: Hypochthon zoisii, 66 66 66 66 66 66 Schreibersii, Freyeri, Laurentii, Haidingeri, carrarae, xanthostichus. The characters however used in distinguishing these are not considered valid, and in the present state of knowledge we seem scarcely justified in subdividing the genus, but rather ought to consider these as varieties of one and the same species. We have then * Archives fur Naturgeschichte. +Sitzungsberichte Wien. Acad. A 1 PERENNIBRANCHIATA. 17 *Proteus auguinus, Laurenti (12 b) Body smooth white or grayish rose; skin with mu- cous pores almost concealed; branchiæ supported by a common peduncle; tail much compressed. 2 Menobranchus, Harlan. 1 Necturus, Rafinesque, Wagler, Cope, Gray. Phanerobranchus, Fitzinger. Upper jaw with two curved rows of teeth, the poste- rior row nearly parallel to and much longer than the an- terior; tongue ovate, large, fleshy, free anteriorly and laterally; toes distinct, four in front and four behind; body short and thick; tail short, much compressed. † Meuobranchus lateralis, Holbrook. (14, 12, b) Synonyms, Protee tetradactyle, Lacepede; Triton lat- eralis, Say; Necturus maculosus, maculatus, luteus, *For the anatomy of P. anguinus see (45, h) and for the ani- mals living with and serving it as nourishment see (46.) +Cope (24, 0) believes this a young Spelerpes, and that it changes to that as Siredon to Amblystoma. 18 CADUCIBRANCHIATA, and fuscus, Rafinesque; Sirena maculosa, Rafinesque; Phanerobranchus cepedii, Fitzinger; Siredon hyemalis, Kneeland and the following probably: Necturus macu- latus, Baird; Proteus maculatus, Barnes; Menobranchus maculatus, Holbrook; Menobranchus punctatus, Gibbes. Body cylindrical, smooth, brownish, with darker spots and often a black lateral line; head broad, depressed; eyes moderate; nostrils small; muzzle truncate; teeth large and conical; gular fold very strongly developed; gills red, three on each side. Length 1½ feet. Habitat the Great Lakes, Lake Champlain, Ohio and Alleghany Rivers, and Santee River? Kneeland (47 b and c) states that this animal is noc- turnal, feeds upon worms, cannot digest minnows, but has its gills nibbled off by small fish, and hence can sur- vive by cutaneous and pulmonary respiration, Smith (48) confirms Kneeland's view of the pulmonary, as well as branchial respiration, in that he succeeded in inflating one of the pulmonary sacs. He also found a Libellula larva in the animal's stomach. Caducibranchiata. Branchiæ not present in the adult state; maxillary and nasal bones large; prefrontals usually present; præ- maxillæ separate or anchylosed, and always dentigerous. CADUCIBRANCHIATA. 19 Branchial apertures upon the neck open*. (a) DEROTREMATA. Branchial apertures closed in adult. (b) (a) Anterior metacarpal bones three. AMPHIUMIDA. (a) Anterior metacarpels four... MENOPOMIDA. (b) Anterior metacarpels four.SALAMANDRIDA. AMPHIUMIDA. Skull elongated; parasphenoid and vomer united, den- tigerous on their anterior margin; palatine bones want- ing; prefrontals and pterygoids present; præmaxillæ and dentaries dentigerous; maxillæ and nasalia large; præmaxillaries united to form a single piece; parietals laterally prolonged, not contiguous with the prefrontals; fronto-temporal arch none or incomplete; occipital con- dyles pedicellate; basihyal cartilage present; a pharyn- geal slit present on each side of the neck; branchial arches four persistent; gills caducous; eyelid circular; vertebræ amphicœlous; carpus and tarsus cartilaginous; pelvic and pectoral arches and limbs developed, but small; anterior digits two or three; fourth finger with a single phalanx. *Cryptobranchus forms an exception, being without bran- chial apertures. { 20 CADUCIBRANCHIATA. Amphiuma, Garden. Murænopsis, Fitzinger; Chrysodonta, Mitchill. Vomero-palatine teeth in two longitudinal rows con- verging in front; tongue triangular, much attached; body very much elongated; neck short; muzzle obtuse; feet small; tail compressed. Toes upon each foot two... ... ... A. MEANS. (1) Toes upon each foot three.. A. TRIDACTYLUM. (2) 1 Amphiuma Means, Holbrook. Synonyms, Amphiuma didactylum, Cuvier; Chryso- donta larvæformis, Mitchill. Body brownish to slate color above, paler beneath; skin smooth; sides with numerous transverse wrinkles; body nearly cylindrical; toes on each foot two; tail short without a distinct ridge rising above its surface. Length 1½ feet. Habitat Southern States. Lives in deep ditches and fresh water lakes. CADUCIBRANCHIATA. 21 2 Amphiuma tridactylum. Body widest above, nearly ovate in section; color brown to dark gray, paler beneath; skin transversely wrinkled upon the sides, smooth above, with numerous mucous pores; vomero-palatine teeth nearer together, eyes more distant, than in the preceding species; toes on each foot three; tail short, with a small ridge rising above its surface. Length 1½ feet. I Habitat South-Western States. MENOPOMIDA. PROTONOPSIDÆ, COPE, Skull broad; parasphenoid edentulous; vomer with teeth along its anterior margin; præmaxillæ and denta- ries dentigerous; maxillæ and nasalia large; pterygoid present and very broad; two separate præmaxillary bones; prefrontals and parietals prolonged so as to em- brace the frontals; fronto-temporal arch absent; occipi- tal condyles sessile; basihyal cartilage present; gill holes open or closed; branchial arches may be reduced to two: upper and lower eyelids distinct; vertebræ am- 22 CADUCIBRANCHIATA. phicœlous; carpus and tarsus cartilaginous; pelvic and pectoral limbs well developed; anterior digits four; fourth finger with three phalanges. Branchial apertures persistent.... MENOPOMA. (1) Branchial apertures closed in adult. CRYPTOBRANCHUS. (2) 1 Menopoma. Palatine teeth in a parabolic curve between the inner nares almost parallel to those of the maxillary; tongue transversely oval; head depressed; eyes small; parotids none; branchial apertures upon the side of the neck per- sistent; skin naked; limbs short and thick; toes four in front and five behind, the latter membranous; tail com- pressed shorter than the body. Menopoma Alleghanensis, Harlan (12, 6) HELL-BENDER OR MUD-DEVIL. Synonyms, Protonopsis horrida, Barton, Barnes, Cope; Abranchus Alleghanensis, Harlan; Cyptobranchus sala- mandroides, Leuckhart; Eurycea macronata, Rafin- esque; Molge gigantea in part Merrem; Menopoma fus- CADUCIBRANCHIATA. 23 ca, Holbrook; Salamandria horrda et gigantea, or max- ima Barton; Salamandra Alleghanensis, Michaux. Body somewhat elongated, thick and strong; color slate with dark spots; nostrils moderate well defined; head very broad; internal nares large; two outer toes with large membranous fringes. Length 2 feet. Habitat Ohio and Alleghany Rivers, and South Car- olina ? not of the Great Lakes. 2 Cryptobranchus, Van der Hoeven. Synonyms, Sieboldia, Bonaparte; Tritomegas, Dumer- il and Bibron; Megalobatrachus, Tschudi. Palatine teeth in a parabolic curve parallel to those of the upper jaw; tongue much attached; body very large rugose or warty; head depressed, oval; branchiæ and branchial apertures caducous; tail short, compressed, and provided with a crest. This animal resembles the Salamandrida in respect to its caducous gills, but may be readily distinguished from them by its huge size and the arrangement of the vome- ro-palatine teeth on the anterior edge of the vomer, in- stead of the posterior, in a somewhat parabola-formed curve with its convexity to the front. 24 CADUCIBRANCHIATA. 1 Cryptobranchus Japonicus, Schlegel. (5) Synonyms, Salamandra maxima, Schlegel; Megaloba- trachus Sieboldii, Tschudi; Sieboldia maxima, Bonaparte, Gray; Sieboldia Davidiana? Blanchard. Color ferruginous brown bestrewed with blackish spots; above slightly shaded with green or olive; upper part of the body, and especially the head, with numer- erous rugosities; mucous pores numerous and secrete a disagreeable smelling humor. Habitat Japan and China. Related to the fossil Andrias found at Oeningen. Salamandrida. A t Synonyms, Gradientia, Oppel, Gray; Pseudo-sauriens, De Blainville; Atretoderes, Dumeril and Bibron; Myc- todera of some authors. Gill-slits perfectly closed in the adult state; skull · broad; palatines present in the young, and arranged as in Trachystoma and Proteida, but change their relations with the growth of the animal; nasal bones usually large; dentaries and præmaxillæ bearing teeth; limbs four, well developed; anterior toes four; fourth finger 1 1 AMBLYSTOMIDÆ PLETHODONTIDE. DESMOGNATHIDE HYNOBIIDÆ. Prefrontals. Present, Prolonged. Not Prolonged. Wanting. Present. Pterygoids. Present. Wanting. Wanting. Present. Wall of Vestibule Osseous. Osseous. Osseous. Parietals. Embracing Frontals. Slightly Embracing. Not Embracing. SALAMANDRIDÆ. Present. Present. PLEURODELIDÆ. Present. Present. Not Embracing. Not Embracing. Not Embracing. Orbitosphenoid Separated by Membran-Separated by Membrane Separated by a Mem-Separated by a Mem-Confluent. and Prootic. ous wall. Parasphenoid. brane. Non-dentigerous. Occipital Con-Sessile. Dentigerous. Sessile. Dentigerous. Pedicellate. dyles. Vertebræ. Amphicœlous. Amphicolous. Opisthocœlous. Carpus & Tarsus. Osseous. Cartilaginous. Cartilaginous. Hind Toes. i 5. 5 or 4. 5. ! Fronto - temporal Arch or Liga- None. Liga-Nor None. None. branous Wall. Non-dentigerous. Sessile. None. 5. Non-dentigerous. Sessile. Opisthocœlous. Osseous. None. 5 Non-dentigerous. Sessile. Opisthocœlous. Osseous. 5 or 4. Present. ment. OF 3CA: CH W L CADUCIBRANCHIATA. 25 r with three phalanges; eyelids two, an upper and a low- er, very distinct. Dummeril and Bibron contrasted the term Atretoderes from Atratos without a foramen and deras neck with Trematoderes, which they applied to the remainder of the Anoura. The latter name etymologically consid- ered seems to be a good one, but unnecessary, as is also its synonym Immutabilia, of Fitzinger. In the subdivision of the Salamandrida various meth- ods have been followed. Hallowell (31, h) recognizes nine families, Cope (24, 0), six, Dr. Gray (30, b) in his Catalogue of the British Museum, five, while Prof. Strauch who has lately written "Revision der Salaman- driden Gattungen," divides them into Mecodonta and Lechriodonta, the former comprising those in which the vomero-palatines are so arranged as to diverge posterior- ly, and the latter those in which the same teeth show a transverse arrangement, or converge behind. The char- acters of Cope's families are given in the enclosed table. The genera included by him under each family are as follows: Amblystomida-Amblystoma, Ensatina,* and Onychodactylust; Plethodontidæ-Plethodon, Hemidac- tylium, Spelerpes, Geotriton, Batrachoseps, Anaides, and the following genera given under other names: Her- edia, Oedipus, Manculus, Thorius, Gymnophilus, Ophio- batrachus; Desmognathida-Desmognathust; Hynobii- dae-Hynobius; Salamandrida-Salamandra and Tri- *Now included in the genus Amblystoma. He at a later date was disposed to consider this as belonging to the Plethodontidæ. ‡Equal to part of the genus Plethodon. 26 CADUCIBRANCHIATA. ton*; Pleurodelidæ Hemisalamandra, Neurergus, Lissotriton, Lophinus, Euproctus, Cynops, Notophthal- mus, Pleurodeles, Glossoliga, and Seiranota.† The following table it is believed will enable any one readily to refer an animal to its proper genus: Vomero-palatine teeth transversely arranged or want- ing; sphenoidal teeth wanting, or convergent posteriorly; (a) Vomero-palatine teeth in two longitudinal rows diver- gent behind or sphenoidals present in two elon- gated groups, and thus divergent. (c) a. With a transverse row of teeth between the in- ner nares. (b) a. Teeth not in a transverse row, but running ob- liquely backwards and uniting medially at an acute angle. b. Tail round at the base. b. Tail compressed at the base. HYNOBIUS. (9) AMBLYSTOMA. (1) ONYCHODACTYLUS. (2) c. Hind toes four on each foot. (d) c. Hind toes five. (†) d. Vomero-palatine teeth in a transverse row, rarely wanting; sphenoidals in two longitudi- nal groups,each consisting of several rows. (e) d. Vomero-palatine teeth in two longitudinal rows, curved outwardly behind, never in a transverse series; sphenoidals wanting. SALAMANDRINA. (II) *His genus Triton only includes part of that of the same name in this work. Most of these genera are given in the following pages under other names. CADUCIBRANCHIATA. 27 e. Tongue attached in front by a mem- brane… … …. … … … … … …..HEMIDACTYLIUM. (3) e. Tongue free all around, boletoid. BATRACHOSEPS. (7) f. Sphenoidal teeth in two longitudinal groups of several rows each; vomero-palatines in a transverse series. (g) f. Sphenoidal teeth wanting; vomero-palat- ines in two longitudinal rows, never in a transverse series. (j) g. Tongue attached in front by a mem- brane. (h) g. Tongue free all around, boletoid. (i) h. vomero-palatine teeth in a continuous transverse row; commissure much curved... ANAIDES. (4) h. Vomero-palatine series more or less in- terrupted medially; commissure nearly straight.. PLETHODON. (5) i. Toes palmate. • i. Toes free... GEOTRITON. (6) ...SPELERPES. (8) j. Sides salient, owing to the great develop- ment of the ribs which sometimes pierce the skin. (k) j. Sides rounded. (1) k. Parotids present; taillong, compressed. PLEURODELES. (12) k. Parotids none; tail short, subcylin- drical... BRADYBATES. (13) 1. Tongue more or less free behind. (m) 28 CADUCIBRANCHIATA. 1. Tongue free only upon the sides.* (n) m. Palatine processes slender; tail cyl- indrical; parotids very prominent. SALAMANDRA. (10) m. Palatine processes cuneiform; tail much compressed at the breeding season; parotids none. EUPROCTUS. (16) n. Outer and inner toes rudimentary; ocellate spots often present upon the sides.......NOTOPHTHALMUS. (14) n. Outer and inner toes developed; oc- ellate spots never present. TRITON. (15) *Triton punctatus forms an exception, being free all around. CADUCIBRANCHIATA. 29 AMBLYSTOMA. Synonym, Plagiodon, Dumeril and Bibron, includes Xiphonura, Tschudi and Heterotriton, Gray. Palatine teeth in a transverse, often interrupted row, sometimes in the form of an arch or crotchet; toes, four in front, five behind, never palmate; tongue fleshy, round or long, centrally attached, with lateral and ante- rior margins free; quadrato-jugal bone wanting; skin smooth, slimy, perforated with mucous pores, especially above the orbits and in the parotid region; costal fur- rows strongly marked; tail short, round to oval at the base, but compressed towards the extremity; vertebræ amphicœlous; parasphenoid not dentigerous; orbito- sphenoid and pro-otic separated by membranes; pos- terior margins of palatines bearing the teeth; carpus› tarsus, and basi-hyal ossified in adults. As Prof. Cope (24, m) has given a very fine analytical table of this genus as well as descriptions of the species I have transferred his table to this work and have abridg- ed many of the descriptions from those given by him and would refer persons desiring a more complete study to his very able presentations of the subject. His an- alysis is as follows: I. Series of teeth along the external fissure of the inter- nal nares, Plicæ of tongue radiating from its posterior 30 CADUCIBRANCHIATA. portion. Parotid glands not forming an ovoid distinct Four phalanges in fourth toe.* mass. A. Costal grooves ten; (a) vomerine series three. Head broad, width 3.5 to groin; muzzle contracted, ex- ternal nares much closer than the internal, palatine series convex backwards; tail short, compressed; blackish- brown, grey speckeled.... B. Costal grooves eleven. (a) Vomerine series three. TALPOIDEUM. b. No, or one, indistinct, plantar tubercle. Middle series transverse or concave behind posterior margins of nares; width of head in specimens of three inches greater than one fourth the length to groin in adult 4.7 times; black above with gray fasciæ; larger— OPACUM. Teeth as in the last; width of head in small speci- mens 3.5 to groin, in adults 4.5 times; a strong dorsal groove and longer tail; black above, with a series of round yellow spots on each side the back. PUNCTATUM. Median series of teeth convex, advancing beyond pos- terior margin of nares; width of head much less than one fourth length to groin; tail short, no dorsal groove; lead- colored with an inferior lateral and usually superior series of small yellowish spots.. bb. Two distinct plantar tubercles. CONSPERSUM. Medium series of teeth straight, nearly divided; exter- nal nares much closer together than internal; width of héad more than one fourth length to groin; muzzle very * See exception under A. mavortium. CADUCIBRANCHIATA. 31 short; tail much compressed; blackish above with large irregular yellow spots, confluent on sides; below yellow. BICOLOR' C. Costal grooves twelve; mucous pores on each side the muzzle. (a) Larger species with two distinct plantar tuber- cles. (b) No canthus rostralis; head longer. External nares as widely separated as inner; frontal and nasal region very convex in transvere section; teeth in four distinct series forming together a V with concave sides projecting between the nares; body long, tail short; color brown.. . OBSCURUM. External nares nearer together than the internal on account of narrower muzzle; brown with usually small spots; brown always predominating; teeth continuous or slightly interrupted externally.. . . . . TIGRINUM. External nares as widely separated as internal; muzzle broad,obtuse;brown,yellow spotted, the yellow spots large, often excluding the ground color; teeth continuous, or slightly interrupted externally... MAVORTIUM. External nares as widely separated as internal; muzzle broad, obtuse; dark brown, with vertical spots on sides; teeth in four distinct series, in a nearly transverse line. TRISRUPTUM. bb. Canthus rostralis distinct; tail longer than head and body, head shorter. External nares nearer together than internal; muzzle obtuse, head small, width five times to groin; front con- vex; vomerine teeth in one series slightly convex for- wards; yellow, with irregular brown bands above... XIPHIAS. + I ; 32 CADUCIBRANCHIATA. a. a. Smaller species, teeth in three series. No, or one indistinct, plantar tubercle. External and internal nares equidistant; width of head 4.5 to 5 times in length to groin; length of eyes 2.5 or a little less in width between anterior canthus of same; tooth series transverse; lead-colored to black, with or without pale or distinct lateral spots..JEFFERSONIANUM. Inner and outer nares equidistant; width of the long oval head 5.5 to 6 times in length to groin; length eye fissure 1.75 (to? twice) in width between anterior can- thus of same; tooth series slightly convex; lead-color- ed. uniform.. ..PLATINENUM. Nares equidistant; width of head 5 tires to groin; muzzle contracted; eye fissure 1.66 between anterior can- thus of same, once to nostrils; median dental series convex forwards. A broad gray band on vertebral line of tail and body, expanding on occiput; sides dark red- dish brown... MACRODACTYLUM. II. Series of teeth extending to external fissure of in- ner nares; lingual plicæ radiating from behind; parot- id glands forming a distinct ovoid mass. a. Teeth in three series (no canthus rostralis or plantar tubercles) fourth toe with three phalanges. Nares equidistant, both approximated: median series of teeth nearly straight short: width of head 4.5 times to groin: eye fissure 1.7 times in width between anterior canthus: limbs large, toes short. Uniform brown. PAROTICUM. III. Series of teeth not extending beyond inner line of the nares: lingual plicæ radiating from behind: no dis- tinct parotid mass. CADUCIBRANCHIATA. 33 a. Two series of teeth (canthus rostralis distinct): no plantar tubercles: fourth toe with three phal- anges; twelve costal furrows (species large.) Vomerine series transverse or directed backwards: muzzle prolonged considerably beyond nares: brown, marbled with dark brown... TENEBROSUM. Vomerine series in two sigmoids, which converge in advance of nares: muzzle shortly rounded from external nares: uniform black... ATERRIMUM. a. a. Two series of teeth: fourteen costal grooves: fourth digit with four phalanges. Teeth arched between inner nares: head one-fourth to groin (in small sp): eye one-half width between canthus: muzzle broad: outer nearer than inner nares: brown, with a series of lighter spots on upper part of sides: be- low yellowish: muzzle and tail marbled with the same. TEXANUM. IV. Series of teeth not extending beyond inner mar- gin of nares: lingual plicæ radiating from a median lon- gitudinal furrow of the tongue: no distinct parotid mass (species small.) a. Two series of teeth (no canthus rostralis): fourth toe with four phalanges. Mandible shorter than muzzle: head elongate, width between eyes behind equal from same to nares: width of head 6.5 times in length to groin: black, with numer- ous grey annuli on body and tail.. CINGULATUM. Mandible longer than muzzle: head short, broad: width between the eyes behind equal from same to end of muzzle: body stouter: width of head 6.5 to 7 times. in length to groin; lead-colored with a few grey shades below..... MICROSTOMUM. 34 CADUCIBRANCHIATA. While the above is exceedingly valuable, and to some would be all that could be desired, it is probable that the following will be more serviceable to most persons in the determination of species. Spots large, very different from the usual color. (a) Spots none, minute, or nearly uniform with the ground color. (1) a. Plantar tubercles two. (h) a. Plantar tubercles indistinct or none. (b) b. Costal grooves 14, vomerine series of teeth two. (f) b. Costal grooves 12. (e) b. Costal grooves II. 3. (c) Vomerine series of teeth b. Costal grooves 10, vomerine series of teeth 3. TALPOIDEUM. (5) c. Color black: spots or bands large: medi- an series of teeth concave behind or straight. (d) c. Color plumbeous: spots small: median se- ries of teeth convex behind. CONSPERSUM. (12) d. Back with transverse bands of gray. OPACUM (2) d. Back without transverse bands or gray. PUNCTATUM. (1) e. Vomerine series of teeth 3: canthus ros- tralis distinct: back with a gray line. MACRODACTYLUM. (7) e. Vomerine series of teeth two: can- thus rostralis none: no gray dorsal line... TENEBROSUM. (9) f. Canthus rostralis wanting. (g) CADUCIBRANCHIATA. 35 f. Canthus rostralis distinctly marked. TEXANUM. (10) g. Back and tail with gray rings or bands. CINGULATUM. (19) MICROSTOMUM. (8) g. Back plumbeous: sides spotted. h. Costal grooves 12. (i) h. Costal grooves II: vomerine series of teeth 3. BICOLOR. (II) i. Tail shorter than the body: canthus ros- tralis wanting. (j) i. Tail exceeding the length of the body: can- thus rostralis distinct......XIPHIAS. (15) j. Vomerine teeth in a nearly continuous line. (k) j. Vomerine teeth in four distinct patches. TRISRUPTUM. (14) k. Nares inequidistant: yellow spots usually small... TIGRINUM. (3) k. Nares equidistant: yellow spots large……. MAVORTIUM. (6) 1. Plantar tubercles indistinct, or none. (m) 1. Plantar tubercles two distinct.... OBSCURUM. (13) m. Costal grooves 12 or more. (n) m. Costal grooves II...... PAROTICUM. (17) n. Vomerine series of teeth 3, extending to exterior of nares. (o) n. Vomerine series of teeth 2, extending only to interior of nares. ATERRIMUM. (18) o. Width of head 4.5 to 5 times the length to groin. JEFFERSONIANUM. (4) o. Width of head 5.5 to 6 times the length to groin. PLATINENUM.(16) • 36 CADUCIBRANCHIATA. 1 Amblystoma punctatum, Baird. (14) 1 VIOLET COLORED SAL AMANDER. Synonyms, Amblystoma subviolaceum, Tschudi; Sal- amandra subviolacea,De Kay, Holbrook, Harlan,Schle- gel; Salamandra punctata, Lacepede, Wagler; Sala- mandra venenosa, Barton, Daudin; Lacerta subviolacea, Barton; Lacerta punctata, Linnæus; Lacerta maculata, Shaw. Color black, at least above, sometimes slightly pur- plish, changing to brown in alcohol: two sets of bright yellow spots arranged somewhat in rows on each side of the back: legs also spotted, spots unequal and change to white in alcohol: tail oval, compressed at the end: body cylindrical: head large, depressed: muzzle round- ed: skin smooth, perforated with pores: two patches of these on each side of the head, one reaching from the nostril backwards, above and somewhat around the eye, the other in the parotid region: cervical fold strong: an- other fold present behind the eye, the two connected by a ridge: costal furrows eleven, strongly marked, some- times with others less marked; furrows behind the leg in the anal region four, and others less prominent upon the tail; back with a longitudinal groove: tail indistinct- AMBLYSTOMA. PUNCTATUM. OPACUM. TIGRINUM. JEFFERSONIANUM. TALPOIDEUM. MAVORTIUM. MACRODACTYLUM. MICROSTOMUM. TENEBROSUM. Above. Black. Brown or Black. Brown. Brown. Color. Below. Paler. Dark Slate. Green and Yellow-Green. ish White. Brown. Paler. Dark Brown. Brown with Gray Dorsal Black. Longitudinal Band. Brown. Brown. Paler. Reddish Brown. Pale. Color. Yellow. Gray. Yellow. None or Light Blue Plumbeous Gray. Yellow. Grayish White.. Plumbeous. Dark Brown. Spots Shape. Round. Transverse Bands. ent Blotches. Round and Conflu None or Light Blue Blotched & Marbled Transverse Ellipti-Dots. Costal Furrows. Eleven. Eleven Twelve. Thirteen. Ten. calBands orBlotches Twelve. Indefinite. Marbled. Twelve. Fourteen. Twelve. Plantar Tubercles. Indistinct. Indistinct. Two. One almost indis- Two. Indistinct. tinct. Canthus Rostralis. None. None. None. None. None. Vomerine Series of Teeth. Three. Three. One. Three. Three. One. Distinct. Three. Indistinct. None. Two. None. Distinct. External and Internal Nares. Inequidistant. Inequidistant. Inequidistant. Equidistant. Inequidistant. Equidistant. Equidistant. Phalanges of Fourth Toe. Four. Four. Four. Four. Four. Four. Four. Four. Length. 16 inches. 3½ inches. Diameter of Head. % inches. 15-16 inch. 7 inches. % inch. 35% inches. 334 lines. 3.8 inches. 6 1-5 inches. 4 inches. 1.52 inch. 7 inches. Habitat. United States. United States. United States. Vermont to Wis-Illinois and South-California,Minneso. Puget's Sound. consin. ta & New Mexico. ern States. 4 lines. United States. Inequidistant. Two. Inequidistant. Three. 9.3 inches. 1 1-5 inches. Oregon and Colum- bia. AMBLYSTOMA. TEXANUM. BICOLOR. CONSPEKSUM. OBSCURUM. TRISRUPTUM XIPHIAS. PLATINENUM. PAROTICUM. ATERRIMUM. CINGULATUM. Above. Brown. Brown. Plumbeous. Brown Brown. Color. Below. Color. Yellow. Light. Yellow and Olive. Paler. Yellow. Yellow. spots.shape. Costal Furrows. Fourteen. Bands and Blotches Small, Roundish. Eleven. Brownish Yellow. Brown. Bark Brown, barely Yellow. Visible. Blotches. Yellowish Olive. Brighter Yellow. Brown. Plumbeous. Paler. Whitish, Indistinct. None. Brown. Paler Brown. Black. Plumbeous. Black. Black and Gray. Transversely Ellip-Bands and Ventral Blotches. None. None. None. Gray. tical Blotches. Spots. Rings and Specks. Eleven. Twelve. Twelve. Twelve. Twelve. Eleven. Twelve. Fourteen. Plantar Tubercles. Two. Indistinct. Two. Two. Two. Indistinct. None. None. None. Canthus Rostralis. Marked. None. None. None. Vomerine Series of Teeth. Two. External and Internal Nares. Inequidistant. Phalanges of Fourth Toe Three. Three. Four. Four. Distinct. One. None. Marked. None. Three. Three. Two. Two. Inequidistant. Equidistant. Equidistant. Inequidistant. Equidistant. Equidistant. Equidistant. Inequidistant. 1 Four. Four. Four. Four. Four. Four. Four. Three. Length. 12 3-10 inches. 5 5-6 inches. 31.9 lines. 8 1-6 inches. 6 4-5 inches. 11 inches. Diameter of Head. Habitat. 834 lines. 3.7 lines. 11 lines. ¡4-5 inch. 10%½ lines. 7.2 inches. 34 inch. Texas. New Jersey. Pennsylvania to Georgia. DesMoines, Iowa. Ocate River N. M. Ohio. Ohio. Puget's Sound. Three. 61½ inches. 4½ lines. Rocky Mountains. Four. 3½ inches. 34 lines. South Carolina. CADUCIBRANCHIATA. 37 ly furrowed lengthwise upon the side: eyes prominent: nostrils small distinct. Length 6 inches. Tail 2/2 66 Body 32 (C Head to cervical fold 34 inch. Diameter of body 66 "head 5/8 (6 5/8 66 Habitat United States east of the Rocky Mountains. (2) Amblystoma opacum. Gravenhorst. (14) : THE BLOTCHED SALAMANDER. Synonyms, Salamandra fasciata, Green, Harlan Hol- brook, De Kay, Storer, Wagler; Salamandra opaca, Gravenhorst; Salamandra Gravenhorstii, Leuckart. Color above light clay or ash, with transverse dark brown or bluish bands, sometimes in blotches, and ex- tend from head to tail: below the color is dark slate: head with a triangular spot: in alcohol the animal is a grayish ash, with transverse bands of dark brown or brownish black: tail oval, with indistinct lateral furrows: 'body nearly cylindrical, thickest in the middle; head large, depressed; muzzle round: mucous pores of the skin numerous, about equally distributed, hence no spe- cial patches above the eye and in the parotid region; cervical fold, fold behind the eye and connecting groove, costal furrows, and furrows in the anal and caudal region 38 CADUCIBRANCHIATA. as in A. punctatum: dorsal longitudinal groove less mark- ed than in that species, but still distinct: eyes small yet prominent: nostrils minute. Length 3½ inches. Tail 112 Body 2 ve 66 Head to cervical fold ½ inch. Diameter of body ½inch; head 15-16 inch. 66 Habitat United States east of the Rocky Mountains. Cope says, "The principal difference in form and structure between this species and A. punctatum are seen in the absence of any dorsal furrow, or a less prom- inence of that on the side of the tail. The limbs are more feeble, the head narrower, etc." In the eight spec- imens before me however, all of which came from South- ern Illinois, the dorsal groove is very distinct. In a specimen from Ann Arbor it is barely visible. In these the most prominent mark of the species is its color, which differs very strikingly from the A. punctatum. Mann (60) states that this animal lays its eggs in the beds of small ponds, and in some cases the number of these amounts to one hundred and eight. He found them in this situation in summer, and also in November, and always with the male and female curled up over the eggs as if in the process of incubation. CADUCIBRANCHIATA. 39 (3) Ambiystoma tigrinum, Green. (14) Synonyms, Amblystoma luridum, Baird, Hallowell; Amblystoma episcopus, Baird, Hallowell; Salamandra lurida, Sager;* Salamandra ingens, Green; Salamandra tigrina, Harlan, Green; Triton tigrinus, Holbrook, De- Kay. Color in alcohol varying from brown to lurid above, plumbeous and yellowish white below, the yellowish white in blotches between the brown and plumbeous, sometimes connected longitudinally: spots varying from reddish brown to white, yellow in fresh specimens, ex- tending from the head to the tail and scattered irregu- larly: tail oval: body cylindrical in some, in others thick- est in the middle, and tapering both ways: head depress- ed: muzzle round; skin smooth with numerous mucous pores: cervical fold and fold behind the eye with con- necting parotid ridge: costal furrows eleven, strongly marked, and others becoming indistinct; furrows behind the legs gradually ceasing, so that the end of the tail is smooth: back with longitudinal groove: tail without any indication of lateral furrows: eyes prominent: nos- *Dr. Sager believes his A. luridum distinct from tigrinum. If so the above description is that of luridum, and I have not seen the tigrinum. 40 CADUCIBRANCHIATA. trils smail, distinct: plantar tubercles two, well de- veloped. Length 7 inches. Tail 3 6.6 Head to cervical fold I in. Diameter of bodv 66 I 66 head 7% 66 Body 4 Habitat Michigan to Minnesota, Nebraska, Louisiana and New Jersey. Hoy (59) states that this animal moves very slowly upon land, but is very active in the water. Insults of fered to its mouth or eyes are resented by strokes or the tail. They are nocturnal in habits; remain in con- cealment during the day, are sometimes found in cellars after a wet night, and probably only quit the water in the fall to seek more congenial winter quarters. 4 Amblystoma Jeffersonianum, Green. (14) THE GRANULATED SALAMANDER. Synonyms, Salamandra granulata, De Kay; Triton higer, De Kay; Xiphonura Jeffersoniana, Tschudi, Gray; Salamandra Jeffersoniana, Green, Holbrook, Harlan, Schlegel; Amblystoma fuscum, Holbrook; Am- blystoma laterale, Hallowell. Color black to greenish in alcohol, above green- ish slate, without blotches or spots, below of a grayish green tinge; cervical fold white; tail roundish oval; body cylindrical, much longer and slimmer than A. CADUCIBRANCHIATA. 41 punctatum; head elongate, apparently not separable from the body; muzzle round; mucous pores of the skin distributed over the body generally, and not collected in special groups; cervical fold indistinct, but its place marked by a white band; fold and connecting ridge be- hind barely discernible; costal furrows thirteen, less marked than in A, punctatum, but nevertheless distinct or at least their place represented by a whiter color; furrows behind the leg also less prominent, and extend- ing almost to the tip of the tail; dorsal longitudinal groove nearly or quite indistinct; lateral caudal furrows want- ing, but a subcaudal extends from anus to tip; eyes small but prominent; nostrils minute. Length 35% inches. Tail 1 9-16 Body 2 1-16 66 CC Head to cervical fold 7-16 inch. Diameter of body 3/8 66 head 5-16 " 66 Habitat Vermont, Pennsylvania, Southern Illinois, Wisconsin, North Shore Lake Superior, and the coun- try included. 5 Amblystoma talpoideum, Gray. Synonym, Salamandra talpoidea, Holbrook, De Kay. Color brown above, paler beneath, blotched or mar- bled with grayish spots; back and tail with dark spots; tail roundish oval, without lateral groove; body depress- ed; head slightly wider than the body; canthus rostra- lis not well defined but present; mucous pores numer- 42 CADUCIBRANCHIATA. ous, a prominent row passes interior to the eye; cervi- cal fold distinct; costal furrows ten; eyes prominent but small; nostrils minute. Length 3 4-5 inches. Tail Body 1½ 2.3 c 66 Head to cervical fold .55 inches. Transverse diameter of head .52 inches. Length of hind leg 1.7 Habitat Illinois to the Gulf of Mexico. 66 6 Amblystoma mavortium, Baird. (13.) Synonyms, Amblystoma proserpine, Baird; Amblys- toma maculatum, Hallowell; Amblystoma nebulosum, Hallowell; Camarataxis maculata, Cope; Amblystoma Californiese, Gray; Desmiostoma maculatum, Sager; Siredon lichenoides, Baird. Color dark brown, paler to yellow below, with yellow caudal and dorsal spots or blotches, and lateral ellipsoid bands extending transversely; limbs blotched; costal furrows less marked than in Amblystoma punctatum; tail ensiform; body stout; head large, very broad; muz- zle rounded; vomerine series of teeth forming an angle with the apex in front; Hallowell (31, b) says "arched in four patches, the two middle convex anteriorly, nearly in contact;" digits triangular, depressed; males with a fin at upper base of tail in the breeding season; anal re- gion swollen. CADUCIBRANCHIATA. 43 Length 834 inches. Tail 4 66 Head to cervical fold 1 inch. Transverse diameter of head I" Body 4 3/4" 66 64 66 body I " Habitat California, Nebraska, New Mexico, and the region of the Rocky Mountains. Siredon lichenoides, Bd. is here placed in the list of synonyms because the recent observations of Prof. O. C. Marsh (37) on the specimens from Lake Como, so confirmatory of and more explicit in regard to species than those made by Dumeril, (32) leave no doubt that it is simply an undeveloped larva of this species. Baird's description (27, c) which is still valuable as giving the characteristics of the young, is as follows: "Body uni- form blackish brown, covered all over with licheniform patches of grayish yellow; snout rounded; tail compress- ed and lanceolated; toes broad and short." 7. Amblystoma macrodactylum, Baird. Color in alcohol brown, with dorsal stripe of grayish brown extending from head to the end of the tail; dark brown spread over the animal from this stripe to the belly, and a few spots occur in the stripe; lateral gray- ish white dots present, and sometimes extend to the limbs; tail somewhat compressed; costal furrows twelve; body cylindrical, depressed; head depressed and elon- gated; palatine teeth in three or four patches; transverse 44 CADUCIBRANCHIATA. diameter of head three-quarters the distance from muz- zle to cervical fold, eyes prominent; nares equidistant. Length 4 inches. Habitat Oregon and Washington Territory. 8. Amblystoma microstomum. Cope. Synonym, Triton porphyriticus, (?) Holbrook. Color in alcohol brownish black, paler beneath; plum- beous spots of indefinite outline scattered thickly and ir- regularly over the sides, sometimes wanting, at others licheniform; tail round or nearly so at the base, but be- coming ensiform towards the end; body slender; length about thirteen times its greatest diameter; head narrow- er than and not separable from the body; projection of upper jaw not as great as that of the lower; dorsal fur- row present, but not deeply indented; mucous pores of the head not different from those of the body; lingual longitudinal furrow present. Length 4 inches. Tail Body 66 1½" 2½" Head to cervical fold .45 inch. Diameter of head .3I 66 Habitat Illinois and Ohio to Louisiana and Arkansas. This species very closely resembles Plethodon glutin- osus, but is distinguished from it by the arrangement of the teeth in a transverse uninterrupted row arched in front instead of being separated by a wide interval, and also by the tail being very much compressed laterally: CADUCIBRANCHIATA. 45 while in the glutinosus it is cylindrical or only slightly compressed. The Triton porphyriticus of De Kay is probably Plethedon glutinosus. 9. Amblystoma tenebrosum, Baird and Girard. Color in alcohol uniform chestnut brown, marbled with darker brown, and head with a grayish tinge; body cylindrical, depressed; head nearly elliptical; skin cor- rugated; tail short tapering, much compressed, edges near the tip sharp; limbs relatively strong; fingers short, depressed, the third longest, with a kind of bulb on the under surface; vomerine teeth in two groups, both con- vex in front, uniting at a slight angle with the apex back- wards; animal as a whole "especially characterized by its massive frame and huge size among true Salaman- ders." Length 9.3 inches. Tail 3.65" Body 5.65 66 Habitat Oregon. Head to cervical fold 1½ inches. Breadth of head 1.15 Expansion between toes on CC opposite sides. 3 3-5 inches. 1 46 CADUCIBRANCHIATA. 10. Amblystoma Texanum, Matthes. (13) Synonyms, Salamandra Texana, Matthes. Color above brown, laterally and below yellow; a se- ries of light spots on each side near the back, one cor- responding to each costal fold; other spots scattered ir- regularly over the sides and legs; body subcylindrical, slender; tail long, tapering; head oval, broad, somewhat depressed; vomerine series of teeth arched; tongue not grooved; limbs ordinarily strong; costal grooves four- teen, well marked; cervical and cephalic folds slight but distinct; eyes and nostrils of average size. Length 2.31 inches. Habitat Texas. 11. Amblystoma bicolor, Hallowell. Color blackish above, yellow beneath, olive in the mid- dle, yellow upon the sides in spots or blotches; limbs transversely banded; tail yellow with dark spots; muz- zle marked and spotted; parotid region yellow; body strong; head large; feet somewhat depressed; tail com- pressed but thick and rounded at base; vomerine teeth in three series, sometimes brushform; posterior nares CADUCIBRANCHIATA. 47. small; dorsal longitudinal groove present, but faint: skin smooth; cervical and cephalic folds poorly devel- oped. Length 5.85 inches. Tail 2.65 66 Head to cervical fold .81 inches. Breadth of head 66 -73 Habitat Beesley's Pt., New Jersey. Hallowell (31, b) says, "perhaps the young of Am- blystoma tigrinum." However the eleven costal folds, the non-emarginate tongue, and the dentition seem to indicate a separate species. 12. Amblystoma conspersum. Cope. Color above cinereous brown or plumbeous finely speckled with white, below dirty white; sides with in- distinct light colored spots; muzzle sometimes marbled at the end; body much compressed; dorsal groove in- distinct; costal grooves eleven; tail compressed through- out its whole length; head large, oval; vomeṛine teeth in three groups, the middle longest; tongue elliptical ; limbs short, digits long and slender; skin smooth, visible mucous pores few upon the body, but many upon the tail; species resembles A. Jeffersonianum. Length 31.9 lines. Tail 12.6 66 Head to cervical fold 4.3 line s Breadth of head Habitat Pennsylvania to Georgia. 3.7 T 48 CADUCIBRANCHIATA. 13. Amblystomɛ obscurum, Baird. Color above and laterally brown, beneath brownish yellow; sides with darker vertical blotches barely per- ceptible; tail similarly marked; head very broad; gape unusually large; inner nares and tongue large, the latter broader than long; vomerine series of teeth four, V form the angle anterior and interrupted along the median line, branches reaching to the anterior border of inner nares; inner anterior series about twice the length of the external ones; skin much corrugated; costal grooves twelve; tail compressed. Length 8 inches, 2.15 lines. Head to cervical Tail (C 3 2 66. Habitat Des Moines, Iowa. fold 12.75 lines. Breadth of head 10.9 lines. 14. Amblystoma trisruptum, Cope. Color in alcohol dark blackish or bluish brown; a single series of large, yellow, transversely elliptical blotches extending from the neck to tip of tail, and a round one just behind the eyes; body strong; head CADUCIBRANCHIATA. 49 broad, ovate, much depressed; muzzle pointed; vomer- ine teeth in four groups, with large intervals; nares equi- distant; tongue broader than long; tail compressed to- wards the tip with sharp edges; skin granulated; mucous pores as usual; certain particles noteworthy in the parotid region. Length 6 4-5 inches. Tail 3 66 Head to cervical fold .9 inch. Breadth of head Habitat Ocate River, N. M. 4-5 66 15. Amblystoma xiphias, Cope. Color yellowish olive, brighter yellow beneath; sides and back with brown anastomosing or reticulating bands; head small; cheeks swollen; eyes rather small but distinct; mandible projecting; outer nares nearer together than the inner; tongue large; vomerine teeth V form, at an obtuse angle, interrupted along the me- dian line, and limbs of the V curve; tail oval, crestless, grooveless, longer than the body, compressed from the base and not elevated; digits triangular, depressed. Length 11 1/4 inches. Tail 6 (C Habitat Columbus, Ohio. Head to cervical fold 1 inch. Breadth of head. .88" تر 1 50 CADUCIBRANCHIATA. 16. Amblystoma platinenum, Cope. Color plumbeous, paler beneath, with numerous in- distinct whitish blotches; body elongated; head oval; muzzle rounded; nares equidistant; dermal cryptæ present in the parotid region; breadth of head five-sev- enths the distance from muzzle to cervical fold; vomer- ine teeth in three patches; angle of the eye anterior to that of the mouth; mucous pores in series along super- ciliary, also behind and below the orbit, and in the parot- id region. Habitat Northern Ohio. 17. Amblystoma paroticum, Baird. Color reddish brown, paler beneath; immaculate; body strong, rounded and depressed; tail oval, tapering towards the tip, compressed, edge below sharp; head depressed; nares about equidistant; vomerine teeth in four groups, with angle anterior; tongue moderate, CADUCIBRANCHIATA. 51 nearly circular; eyes very large and prominent; neck constricted; limbs large; digits long, linear, and not tri- angular; costal furrows eleven. Length 7.2 inches. Tail 66 3.4 Habitat, Puget's Sound. Head to cervical fold .95 inch. Breadth of head 3/4 66 17. Amblystoma aterrimum, Cope. Color above black, plumbeous beneath; body strong; tail short, upper edge and posterior half compressed; head oval, broad; tongue large, as broad as long; vomer- ine series of teeth in two groups, beginning behind the inner nares, passing in a curve to the anterior, then turning towards the median line at a right angle to their pre- vious direction; nares equidistant; cervical fold promi- nent; parotid mass or ridge invisible; costal folds twelve, indistinct; limbs strong; palms wide, toes short, de- pressed. Length 6½ inches. Tail 22 66 Head to cervical fold 1234 lines. Breadth of head 934 Habitat Northern Rocky Mountains. 52 CADUCIBRANCHIATA. . 19. Amblystoma cingulatum, Cope. Color in alcohol black, beneath speckled with gray; transverse dorsal gray bands present, and extend down the sides between the costal folds, sometimes branching and meeting on the back so as to enclose an area; annu- li present from the orbits to tip of tail; body very slen- der; head long, ovoid; muzzle long, projecting beyond mandible; tongue oval, elongate, with a deep longitu- dinal furrow; row of vomerine teeth convex in front, not extending beyond inner margin of internal nares; gape of mouth short; external nares three-fifths as far apart as the internal; cervical, parotid, and cephalic folds well marked; body elevated in scapular and pelvic regions; tail compressed, carinated above, and towards the tip below; digits slender, depressed. Length 3½ inches. Head to cervical fold 6 Breadth of head Habitat Grahamville, South Carolina. lines. 3 I-5 lines. CADUCIBRANCHIATA. 53 ANIMALS KNOWN ONLY IN THE LARVAL STATE. While the following species have hitherto been refer- red to a distinct genus, the researches of Dumeril, Marsh, and Tegetmeier render it probable that they are only immature forms, and probably as suggested by Cope in regard to the first, they all belong to the genus Amblys- toma. At the same time it should be borne in mind that no one has ever seen a species of true Axolotl, such as Siredon Mexicanus, undergo metamorphosis, all the ob- servations recorded on this point having been with Siredon lichenoides, which soon after naming by Prof. Baird, was suspected of being a larval form. Still fur- ther, in all the collections brought from Mexico not a single Amblystoma has ever been obtained south of the 26th parallel, while the Axolotl inhabits the Lake of Mexico. Dumeril has also shown that the Siredons were capable of reproduction, while so far as our pres- ent knowledge goes, the metamorphosed Amblystoma is always barren. These facts leave still room for doubt as to whether these animals undergo transformation. And yet while no specimen has ever been observed show- ing a tendency to a change, their relation to an animal on which observations have been made is such as to render 54 CADUCIBRANCHIATA. a metamorphosis in their case exceedingly probable un- der favorable conditions. In naming them here the ge- neric term, Siredon, though perhaps inappropriate, is re- tained where a better has not been given, because when the adult is discovered, it will probably be some already well known Salamander, and in the present state of sci- ence to assign them new designations would only add to the already burdensome list of synonyms. Also the characteristics of Siredon are still valuable as referring to the young, and hence are given as follows. Siredon, Wagler. AXOLOTL, rarely ATOLOCALT. Body short and thick; head depressed; tongue small; vomerine teeth numerous, small, disposed obliquely to the palatine and pterygoid bones; trunk short, slightly compressed; external branchial tufts three, partially covered at base by a floating skin; gular folds repre- senting the operculum; feet four, well developed; toes free, four in front, five behind; tail compressed, not sep- arable from the body. CADUCIBRANCHIATA. 55 Amblystoma Mexicanum, Cope. Synonyms, Gyrinus Mexicanus, Shaw and Nodder; Siren pisciformis, Shaw, Daudin, Home and Mayer; Gyrinus edulis, Hernandez; Lusus aquarum, Nierem- berg; Piscis ludricus, Hypochthon pisciformis, Graven- horst; Axolotes guttatus, R. Owen; Axolotes macula- tus, Gray; Siredon Humboldtii, Dumeril and Bibron. Color brown or dark gray; irregularly black spotted, extending upon their borders in radial lines; tail and belly also spotted; dorsal membrane and upper cau- dal united, the latter curved; subcaudal fin smaller and nearly straight. Hernandez was certainly the first to discover this an- imal, and his allusion to it was so singular as to have been transcribed by naturalists. As it may be of inter terest to some it is given here. "Illuvies menstrua et Lubricus gestus unde nomen meruit Axolotl id est Lusus aquarum. Genus quoddam est piscium lacustrium, molli cute intectum, ac Lacer- tarum more quodrupes, dodrantis longitudine, pollicem que crassum et si interdum cubitum exedat. Vulvam habet mulieri similliman, ac venter ejus maculis fuscis distinguitur. Corpore medio ad caudam usque, mempe 56 CADUCIBRANCHIATA. prolixam et qua juxta finem tenuissima sit, paulatim ac sensim graciles sit. Pro lingua est Cartilago brevis ac lata. Quaternis natat pedibus, in totidem digitos per- similes Ranarum fissis. Caput depressum et reliqui corporis proportione magnum. Hiscens rictus, aterque color. Huic menstrua singulis quibusque mensibus fluere observatum sæpe sæpius est, haud aliter ac muli- eribus, etc., etc. Salubre et gratum præbet alimentum-postea de Condimentis." Siredon Harlanii, Dumeril and Bibron. Synonyms, Axolotes maculatus, Owen; Siredon mac- ulatus, Baird. Color ashy gray, with numerous, round, distinct, black spots, beneath immaculate; dorsal membrane rising upon the nape. Length 8 inches. Siredon Dumerili, Duges. (39) "Lower parts much lighter than the upper; throat and breast sometimes white; four white spots upon the CADUCIBRANCHIATA. 57 sides. In the male the dorsal crest commences between the shoulders; some sunk points upon the skin, chiefly above; these are openings of the glands which secrete a lactescent, bitter and fetid humor." Duges. (39) 2. Onychodactylus, Tschudi. Synonym, Dactylonyx. Vomerine teeth in a transverse, medially interrupted, row behind the inner nares; sphenoidals wanting? tongue round, entire, free only at its borders; skin smooth, perforated with mucous pores; tail long, round, but dis- tally compressed; digits distinct, four in front and five behind, terminating above usually in a black nail-like spot. The name of this genus, derived from dactylus nail and onyx finger, has reference to this last character- istic; but an interesting fact is that a similar spot is often present in large Amblystoma, and it seems to be merely incidental, varying with age and the seasons. 58 CADUCIBRANCHIATA. 1. Onychodactylus Schlegeli, Tschudi. (12) Synonyms, Onychodactylus Japonicus, Bonaparte, Gray; Salamandra Japonica, Houttuyn; Salamandra unguiculata, Schlegel. Color dark brownish gray, lighter beneath, often marbled with yellow; back with a large reddish yellow band extending from the occiput to the middle of the tail; margins of the band irregularly notched, and the stripe itself bifurcate upon or posterior to the inter scap- ular region; head short; eyes prominent; muzzle round; parotid mass distinct, separated into two parts by a line from the commissure; postorbital and gular fold well marked; costal furrows fourteen; limbs and body strong; digits long and slender, ending in a kind of pellicle. Habitat Japan. 3. Hemidactylium, Tschudi. Desmodactylus, Dumeril and Bibron. Vomerine teeth in two rows, one on each side behind CADUCIBRANCHIATA. 59 the inner nares, sphenoidals also in two groups, separat- ed from the former and each other; tongue oval, adhe- rent in front; parietal bones osseus; præmaxillaries two, fontanelle wanting; toes rudimentary, palmate at base, four in front and four behind. 1. Hemidactylum scutatum. Schlegel, Synonyms, Salamandra fusca, Green, Jour. A. N. Science, Phil. 1818, page 357, not Rafinesque; Sala- mandra scutata, Schlegel; Salamandra melanostica, Gibbes; Desmodactylus melanosticus, Dumeril and Bibron. Color above brown, muzzle yellowish, limbs and tail orange brown; upper surface with black spots on each side scattered irregularly; beneath white, with pitchy black spots especially numerous in the gular region; head large; muzzle obtuse; eyes not very prominent; iris yellow; pupil black; gular fold well developed; cos- tal furrows well marked; skin of the back similarly cut making it resemble scutæ; body cylindrical, short; limbs slender; tail round at base, compressed distally, бо CADUCIBRANCHIATA. equal to once and sometimes twice the length of the body. Length 2 3-5 inches. Habitat Abbeville, South Carolina. Found in April under old logs and rails in open woods at some distance from the water, and was very quick and lively. 4. Anaides, Baird, Vomerine series in a continuous row, sphenoidals in two groups contiguous in front; tongue adherent anteri- orly; maxillary teeth lance-shaped, large, but becoming smaller and disappearing posteriorly; præmaxillary bones united into one; commissure much curved as a re- sult of the arching of the maxillary bones; toes distinct, four in front and five behind. Approaches Plethedon in many respects, but differs from it in its powerful dentition, curved commissure, con- tinuous vomerine teeth, cutting edge of its maxillary, and its single præmaxillary embracing a fontanelle. Size large, digits short, distinct; top of head and dor- sal region brown, with irregular yellow spots. A. LUGUBRIS. (1) Size small; digits long; thumb indistinct; top of head and dorsal region with serrate band....A. FERREUS. (2) i CADUCIBRANCHIATA. 61 1. Anaides lugubris, Hallowell. Syononyms, Salamandra lugubris, Hall, Hallowell; Taricha lugubris, Gray. Color brown above, with numerous irregular yellow spots extending from the occiput to tip of tail, spots sometimes nearly in rows, beneath yellowish, unspotted, head large; muzzle truncate; nostrils distinct; eyes prominent, situated far in front of the posterior part of the commissure; gular fold distinct, others anterior to axilla barely visible; costal grooves thirteen, prominent; tail small round, tapering and annulate; body and limbs strong. Length 54 inches. Head to gular fold 7–8 inch. Tail Body 21/4 3 66 66 66 66 axilla Breadth of head Habitat California and Oregon. Found in spring under logs. 2. Anaides ferreus. Cope.. I 1/2 66 Color above and upon the tail black, nape and sides greenish gray, beneath dark yellow, immaculate; limbs black above, lighter or brown below; head eccentric 1 62 CADUCIBRANCHIATA. oval; muzzle truncate: nostrils joined to the commissure by a delicate furrow; vomerine teeth eight, on an arched ridge; outer nares farther apart than the inner; gular fold prominent; costal furrows fourteen; body slender, cylindrical; limbs appressed; digits long and slim; thumb with a short phalanx, but not distinct. Length 3.65 inches. Tail 1.65 66 Habitat Oregon. Head to axilla .7 inch. Breadth of head .28 “ 5. Plethodon. Tschudi. Phatnomatorhina, Bibron; Plethodon and Desmogna- thus, Baird, Cope. Vomerine teeth in two patches, one behind each of the inner nares rarely wanting; sphenoidals numerous in two almost quadrilateral groups; tongue large, round, or oval, entire or slightly notched behind, adherent in front and centrally, laterally and posteriorly free; skin smooth; body cylindrical; tail round tapering to the tip; toes four in front and five behind; præmaxillaries two. With the exception of Plethedon persimilis, the exact position of which is doubtful, the following table will serve for the determination of the species: Sphenoidal teeth in two medially contiguous groups; CADUCIBRANCHIATA. 63 vomerine patches separted by a distinct inter- val. (a) Sphenoidal teeth in two not contiguous groups; vo- merines often approximated. (d) a. Color cinereous; dorsal band red, rarely wanting. (b) a. Color black, dorsal band always wanting. (c) b. Costal furrows 16 or more. P. ERYTHRONOTUS. (1). b. Costal furrows 14..P. INTERMEDIUS. (5) c. With irregular gray blotches, costal furrows 14........P. GLUTINOSUS. (2) c. Color uniform black; costal furrows 12. P. NIGER. (7) d. Costal furrows 13 or less; muzzle truncate; vomerine groups of teeth medially approx- imated. (e) d. Costal furrows 14 or more; muzzle round; vomerines few or none. (t) e. Plantar tubercles two in front; spots minute.........P. OREGONENSIS. (3) e. Plantar tubercles none; spots large ...P. CROCEATER. (4) f. Dorsal band wanting; dots red or none; orange... toes long; body marbled below. P. FUSCUS. (6) f. Dorsal band yellowish; dots brown; toes short; body dirty white below. P. OCHROPHÆUS. (8) 64 CADUCIBRANCHIATA. 1. Plethodon erythronotus, Green. (14) THE RED-BACKED SALAMANDER. Synonyms, Salamandra erythronota, Green, Storer, De Kay, Holbrook, Harlan; Salamandra agilis, Sager; Plethedon cinereum, Tschudi; Amblystoma erythrono- tum, Gray; Saurophis, Fitzinger; Spelerpes erythrono- tus, Kennicott. Color upon the sides cinereous; dorsal stripe extend- ing from the occiput to the extremity of the tail of deep or light red; head brown above; lower jaw and gular region whitish; ventral part of the body light, but not as much so as the throat and chin; sides in alcohol some- times reddish brown, and dorsal stripe cream-colored; eyes large, black; head somewhat depressed, scarcely separable from the body; canthus rostralis none; costal grooves sixteen to nineteen; caudal furrows about twen- ty; cervical fold indistinct, its place represented by a white line; nostrils laterally situated. Length 3½ inches. 66 66 Head to cervical fold 9-16 inch. Tail 13/4 Width of head 7-32 Habitat Northern Michigan, Kentucky, South Caro- lina, Massachusetts and Nova Scotia. Very common. Haldeman (38) states that while Herpetologists have supposed that P. erythronotus and cinereus are different sexes of the same species from their having been so oft- en found associated together, yet he as a result of care- * PLETHODON. ERYTHRONOTUS. GLUTINOSUS. OREGONENSIS. CROCEATER. INTERMEDIUS. FUSCUS. NIGER. OCHROPHÆUS. * PERSIMILIS. Above. Cinereous. Black. Brown. Black. Cinereous. Brown. Black. Yellowish. Black. Color. Below. Light Marbled. Plumbeous. Yellow. Orange. |Light Marbled. Marbled. Black. Color. Ashy. Gray. Black. Orange. Ashy. Red. None. Dirty White. Brown. Plumbeous. Gray. Spots. Shape. Speckled. Irregular. Minute Dots. Large. Speckled. Minute or None. None. Dots. Dorsal Band. Red. None. None. None. Red. None None. Yellow. Muzzle. Truncate. Truncate. Truncate. Truncate. Truncate. Round. Round. Round. Teeth { Vomerines medially. Distant. Distant. Approximated. Sphenoidals. Contiguous. Contiguous. Vertebræ. Amphicœlous. Amphicœlous. Costal Furrows. Sixteen & Nineteen. Fourteen. Digits. Palmate. Free. Plantar Tubercles. Indistinct. None. None. Length. 31½ inches. 4½ inches. Width of Head. 7-32 inch. 3% inch. Habitat. U.S. east of the Miss. U.S. east of the Miss. Separate. Amphicœlous. Ten & Eleven. Free. Free. Two in front. 3 7-11 inches. 6 inches. 4 lines. 64 lines. 3 lines. Oregon. Lower California. Approximated. Separate. Amphicœlous. Thirteen. Distant. Contiguous. Amphicœlous. Fourteen. Nearly free Indistinct. Few or None. Distant. Irregular. None. Truncate. Few or None. Separate. Contiguous. Opisthocœlous. Fourteen & Fifteen. Ophisthocœlous. Twelve. Distant. Opisthocœlous. Fourteen. Long and Free. None. |3.65 inches. 3%½ inches. 3% lines. Vancouver Is. to L. Cal. U. S. east of the Miss. U. S. east of the Miss. Pennsylvania. Long and Free. None. Short and Free. None. Free. 6 inches. 3 inches. 5 lines. 1-5 inch. Siam. UNIV CADUCIBRANCHIATA. 65 not. ful examination came to the conclusion that they were Four cinereus opened by him contained gravid ova- ries, and hence were females; on the other hand two erythronotus contained only seminal matter and sperma- tozoa imperfectly developed. Two others were found, however, with gravid ovaries; hence we have of the erythronotus both male and female. Prof Green, how- ever, after careful revision concluded that the cinereus was probably only an aged individual in which the dor- sal stripe had become obsolete. The Red-backed Salamander is the first seen in spring, having been observed in the middle of April. It is found in moist woody places, hiding under stones and old logs, and when discovered if alone it quickly disap- pears in the decayed wood, moss or earth, but if accom- panied by its young neither it nor the little ones attempt to escape. It climbs glass by adhering with its abdo- men, is frequently curled up on herbs, and if disturbed springs away by a sudden uncoiling. Their food ap- pears to be small snails or mollusks, and when the young are found as a rule they are accompanied by the parent, but are sometimes alone. Their little ones as well as their eggs occur under the moss and bark of decayed trees. The latter are found in bunches of from six to eleven each, and individually are about 3-20 of an inch in diameter. The young are supplied with branchiæ, but lose them very early-that is in about three or four days after hatching. 66 CADUCIBRANCHIATA. 2. Plethodon glutinosus, Tschudi, (14) THE GRAY SPOTTED SALAMANDER. Synonyms, Salamandra glutinosa, Green, Schlegel, Harlan, Holbrook, Storer, De Kay; Salamandra vario- lata, Gilliams; Salamandra cylindracea, Harlan; Pleth- odon variolosum, Tschudi, Dumeril and Bibron; Cylin- drosoma glutinosum, Dumeril and Bibron; Triton por- phyriticus? De Kay; Plethodon granulatum, Gray; Salamandra elongata, Valenciennes. Color above black glossy, with numerous minute gray spots, upon the sides larger, in some almost conflu- ent, in others licheniform patches; color below plum- beous, with small spots of gray in the gular region; legs also spotted; cervical fold and a narrow strip on each side of anus of a yellowish tinge; costal furrows fourteen; nares equidistant; vomerine series of teeth extending to the exterior of inner nares; canthus rostralis none; nos- trils small, laterally situated; head and body scarcely or not at all separable; cervical or gular fold distinct; body with a dorsal longitudinal furrow; tail long, round, ta- pering; legs moderately long, slender and not very strong; head depressed; eyes not as prominent as in P. erythronotus. Length 4½ inches. Tail 2 66 Head to cervical fold ½ inch. Breadth of head 38 '' CADUCIBRANCHIATA. 67 Habitat Massachusetts, Florida, Louisiana, Illinois, and the country included. Straits of Belle Isle? (2) Common. This animal conceals itself under rocks and logs in moist places, but has been found upon dry elevated ground. The color seems to vary much with age, the young being much more thickly spotted than the adult. In the specimens before me this variation is not influ- enced by locality. 3. Plethodon Oregoneusis, Girard. Synonyms, Heredia Oregonensis, Girard; Ensatina Eschscholtzii, Gray; Plethodon ensatus, Cope. Color brown above, but under a lens appears as mi- nute black dots upon an olive ground; sides similarly spotted; below yellow; head broader than body; muz- zle truncate; nostrils small, widely separated; eyes prom- inent; cervical fold well marked; vomerine teeth in two series, one on each side, almost uniting in front in a reversed V form; tongue attached in front; parotids none; plantar tubercles two in front, none be- hind; costal furrows ten or eleven; tail cylindrical, taper- ing; limbs slender, anterior ones longest; toes tapering, slender and free. Length 3 7-12 inches. Tail 66 Head to cervical fold 5 lines. Breadth of head I 7-12 Habitat Oregon, California ? re 4 68 CADUCIBRANCHIATA. 4. Plethodon croceater, Cope. Color above black, below reddish orange; parotid re- gion with a very large reddish orange spot; four simi- lar spots present on each side of the back; base of tail with a pair of spots; limbs orange, with a transverse band of black below the knee; head broad; maxillaries converging; muzzle truncate; vomerine series of teeth in two arcs; eye large; postorbital, and parotid grooves distinct; costal furrows thirteen, not well marked; tail slender, subcylindrical, exceeding the length of the body; limbs long and slender. Length 6 inches. Tail 3/4 " Habitat Lower California. 5 Head to cervical fold lines. Breadth of head 634 66 5. Plethodon intermedius, Baird. This species is very clearly related to P. erythronotus, from which it is separated by having fourteen instead of sixteen to nineteen costal furrows, thus shortening the main part of the body. The feet are scarcely at all pal- mate, and the third and fourth toes much longer. Its CADUCIBRANCHIATA. 69 habitat also is quite different, but on the whole I am disposed to consider it a variety of that species. Habitat Vancouver's Island and Lower California. 6. Plethodon fuscus. Synonyms, Salamandra picta, Harlan, Storer, De Kay; Salamandra intermixta, Green; Salamandra quadramat- ulata, Holbrook; Triturus fuscus, Rafinesque; Desmog- nathus fusca, Baird, Cope; Salamandra auriculata, Hallowell, Gray, Baird; Cylindrosoma auriculatum, Dum- eril and Bibron: Salamandra Haldemani? Holbrook: Spelerpes Haldemani? Hallowell. Color brown marbled with pink; vertebral region not so dark; laterally and ventrally still lighter, sometimes yellowish or very light orange, but generally brown and white marbled; chin and gular region almost white; head very much depressed; muzzle round, not truncate: parasphenoidal teeth not contiguous; vomerines few in a row on each side, often wanting; eyes prominent; dor- sal longitudinal furrow present; cervical fold, postorbital and parotid grooves well marked; costal furrows 13 to 15, usually 14; limbs small; toes long and slender; ver- tebræ opisthocœlous; tail compressed, carinate above, sometimes terminating in a fin, but usually pointed. Length 3½ inches. Head to cervical fold ½ * inch. Tail 13% 66 Breadth of head 5-16 66 70 CADUCIBRANCHIATA. Habitat New York to Georgia, Alabama and Ohio. Common. Var. auriculatus differs from this by being black or nearly so above, with a reddish spot behind and below the eye, and minutely punctate with red upon the sides. Lives in shallow brooks, and emits its eggs in a string connected by albuminous matter, which is afterwards wound around the body by one of the pair. 7. Plethodon niger, Hallowell. Synonyms, Desmognathus nigra, Baird, Cope, Gray; Triton niger, Holbrook; Salamandra nigra, Green, Harlan. Color dark brown or black, lighter beneath; head large, depressed, not separable from the body; muzzle rounded; sphenoidal teeth in two groups, almost or quite united anteriorly; vomerine series approximated in two oblique rows; tongue round; body large; limbs appressed; toes very long, distinct; gular fold well marked; parotid and postorbital grooves scarcely visi- ble; eyes prominent; costal furrows twelve; tail subcy- lindrical at base, becoming compressed, tapering to the tip, and usually provided with a fin. Length 6 inches. Tail 2 4-5 inches. Habitat Massachusetts to Georgia and Louisiana. Inhabits shallow springs in cool moist places, and con- CADUCIBRANCHIATA. 71 ceals itself under stones; quick in its movements and difficult to capture. Seems to be highly endowed with vitality, and its metamorphosis is effected early, speci- mens one and one-half inches long being without bran- chiæ, and the females have been found from April 28th to June 26th with as many as seventy eggs in the ova- ries. The eggs are yellow, not seen in the oviduct, and the number in the two ovaries was not equal. 8 Plethodou ochrophæus, Cope. } Synonym, Desmognathus ochrophæa, Cope, Color brownish yellow, shading into a dirty white be- low, with a dark brown vertebral band; brown dots pres- ent in dorsal region; males somewhat darker; head de- pressed, oval; sphenoidal teeth well separated, vomer- ines few and often wanting; mandible in males concave in front of the eye, and toothless, but dentigerous in fe- males; eyes prominent; cervical fold distinct; costal fur- rows thirteen, well marked; limbs appressed; toes free and short; tail very long, compressed, sometimes carin- ate, but never provided with a fin. Length 3 inches. Tail 1½ " Head to gular fold ½ inch Breadth of head 1-5 66 Habitat Alleghany Region of Pennsylvania. Dwells in damp woods under rocks, bark, wood, etc. A variety of P. fuscus ? + 72 CADUCIBRANCHIATA. 9. Plethodon persimilis, Gray. Mivart claims this is not a Plethodon, and designates it as Pectoglossa, but not having a specimen or a good description I am unable to satisfy myself of its true rela- tion, and hence permit it to remain here. Color black, speckled with white; laterally the specks are closer and more numerous; hind toes elongate, une- qual; tail compressed. Habitat Siam. Dr. Gray states that the only difference he is able to discover between two specimens of this species received from Siam and Plethodon glutinosus from the United States is that "the toes of the hind foot appeared rather longer, more slender, and unequal in length, and the tail much more compressed." 6. Geotriton, Gene. Oedipus, Gray. Vomerine teeth in a transverse row behind the inner nares, medially forming a sharp angle pointed back- CADUCIBRANCHIATA. 73 wards; sphenoidals in two elongated groups, not touch- ing the vomerines; tongue boletoid; eyes prominent; parotids wanting; toes palmate, four in front and five behind. Some writers designate the first species as Geotriton, and the remainder as Oedipus, because in fuscus the two præmaxillaries are distinct, and are united in the others; but this is a characteristic difficult to determine, and probably the result of an immature condition. Until, then, further researches establish the fact, one is not warranted in making separate genera. Back black or brown; no dorsal band. (a) Back yellow, or with yellow dorsal band. (d) a. Costal furrows ten or eleven. (b) a. Costal furrows twelve or thirteen. (c) b. Toes with two free phalanges. G. FUSCUS. (1) b. Toes completely palmate. G. RUFESCENS. (4) c. Body below and limbs dotted with white. G. MORIO. (2) c. Body and limbs uniform dark brown. G. ALTAMAZONICUS. (6) d. Body moderately elongated. d. Body short and thick.. G. CARBONARIUS. (3) G. ADSPERSUS. (5) ! 74 CADUCIBRANCHIATA. 1. Geotriton fuscus, Gesner. (12, b) Synonyms, Salamandra fusca, Gesner, Aldrovandi, Laurenti; Salamandra savii, Gosse; Salamandra Genei, Schlegel; Geotriton Genei, Tschudi. Color brown above, with reddish lines scarcely per- ceptible; beneath spotted with white; head white; sphenoidal and vomerine teeth separated by a large in- terval; costal furrows ten; digits depressed, with two free phalanges. Habitat Southern Italy. 2. Geotriton morio, Cope. Synonyms, Oedipus morio, Cope; Geotriton carbona- rius, (black variety) Cope. Color black above, dark plumbeous below; whitish dots numerous over the limbs and lower parts of the body; head flat; muzzle truncate; sphenoidal and vo- merine teeth nearly contiguous; costal furrows thirteen, distinct; limbs appressed; toes, except the inner, with CADUCIBRANCHIATA. 75 one free phalanx; tail cylindrical, tapering, annulate laterally. Length 3.29 inches. Head to axilla .63 inches. 66 Tail I.35 66 Breadth of head.28 Habitat High Lands of Guatemala. 3. Geotriton carbonarius, Cope. Synonyms, Oedipus carbonarius, Cope; Bolitoglossa Mexicana, (Pars) Dumeril and Bibron; Salamandra pla- tydactyla ? Cuvier; Oedipus platydactylus ? Tschudi; Oedipus Salvinii ? Gray. Color above yellow, from muzzle to tip of tail with black spots, and laterally changing abruptly to black, which color continues over the whole under surface; limbs spotted with yellow; the yellow upon the back might in some cases be regarded as a dorsal band; muz- zle truncate; sphenoidal teeth contiguous, and continued towards the vomerines, but not touching them; costal furrows twelve or thirteen; toes broadly palmate; tail cylindrical, tapering, annulate for two-thirds its length. Length 64 inches. Tail 3/4 (6 Habitat elevated regions of Eastern Mexico. 76 CADUCIBRANCHIATA. 4. Geotriton rufescens, Cope. Synonym, Oedipus rufescens, Cope. Color above black, below brown, with white specks; head above somewhat rufous; muzzle truncate; teeth not prolonged outwardly beyond the inner nares; sphe- noidals nearly contiguous, and somewhat prolonged to the front; costal furrows ten or eleven; limbs appress- ed; toes completely palmate; tail cylindrical, thickened, shorter than body. Length to groin 1.04 inches. 66 " axilla .39 Habitat Vera Cruz. 66 5. Geotriton adspersus, Peters. Synonyms, Oedipus adspersus, Cope; Spelerpes ads- persus, Peters. Color above black or dark brown, paler beneath, sprinkled above and below with white or yellow in the form of dots or small lines; dorsal band present, often sprinkled with black; head short, a little longer than CADUCIBRANCHIATA. 77 broad; muzzle obtuse; sphenoidal teeth in two groups contiguous in front and diverging behind; gular fold very distinct; body short and thick, with well marked costal furrows; skin otherwise smooth; thumb and first toe rudimentary; limbs short, anterior reaching almost to the eye, posterior scarcely longer; tail very short. Length 3.1 inches. Breadth of head 3.3 lines. Tail 1.5 66 Habitat Bogota. A variety of G. carbonarius ? I By an examination of an impregnated female, Peters (15, c) discovered developed eggs of nearly 1½ lines in diameter, and thence concluded that a copulation had taken place, and that they were viviparous. 6. Geotriton altamazonicus, Cope. Synonyms, Oedipus altamazonicus, Cope. Color uniform dark brown; head elongate, oval; width less than one-sixth the length to groin; muzzle tu- mid emarginate; nostrils small, piercing each tumidity; vomerine teeth in contact medially, and outwardly limit- ed by the inner nares; sphenoidals numerous in two patches, contiguous in front; costal furrows thirteen; dorsal longitudinal groove present; body slender; limbs weak, thin, and as well as the appressed feet, extending 78. CADUCIBRANCHIATA. over four costal furrows; mucous pores numerous; tail oval, swollen at base. Length 3.23 inches. Tail 1.57 66 Habitat Nauta. Breadth of head .28 inches. : 7. Batrachoseps, Bonaparte. Vomerine teeth in a transverse, medially interrupted, row behind the inner nares; sphenoidals in two elongated groups, not touching the former; tongue boletoid or ad- herent towards the front; præmaxillaries united into a single piece; head short; body and tail slender; toes elongated, four in front and four behind. Color above brown or yellowish, with black dots, lines or bands. (a) 1. Color above uniform brown. (b) a. Tongue attached in front... B. ATTENUATUS. (1) a. Tongue fully boletoid. . B. QUADRIDIGITATUS. (4) b. Toes palmate. .B. PACIFICUS. (3) • b. Toes free and rudimentary. B. NIGRIVENTRIS. (2) " : CADUCIBRANCHIATA. 79 1. Batrachoseps attenuatus, Eschscholtz. Synonym, Salamandra attenuata, Eschscholtz. Color above reddish brown with a black vertebral line and transverse diagonal bands; beneath brown; costal furrows twenty or twenty-one; limbs weak, hind one extending over four costal spaces, fore one not reaching to the gape of mouth; feet small and thin; toes free; tail longer than the body. Length 3 7-12 inches. Tail 2 I-12 66 Habitat San Francisco. : 2. Batrachoseps nigriventris, Cope. .! Color above dark brown; tail and under surface black; muzzle short; gular fold marked; parotid groove pres ent; costal furrows twenty or twenty-one, extending up- on the back; body somewhat compressed; limbs weak; hind ones extending over six costal spaces; forelimb al- most reaching to the orbit; toes rudimentary, distinct; 80 CADUCIBRANCHIATA. tail stout at base, nearly quadrate, strongly annulate, and compressed distally. Length 22 lines. Tail 8½ 66 82 Head to axilla 3½ lines. Breadth of head 1.7" Habitat Fort Tejon, California. 3. Batrachoseps Pacificus, Cope. Synonym, Hemidactylium Pacificum, Cope. Color uniform brown, yellowish beneath; head oval; elongate; muzzle round; eyes large, prominent; tongue eccentric oval; sphenoidal and vomerine teeth almost in contact; gular fold not marked, but represented by a line; costal furrows eighteen; fore limb extending to or- bit, hind one reaching over seven and a half costal spaces; toes palmate, inner quite rudimentary; tail slen- der, nearly cylindrical. Length 33½ lines. Tail 17 66 Habitat Santa Barbara, California. CADUCIBRANCHIATA. 81 4. Batrachoseps quadridigitatus, Holbrook. Synonyms, Manculus quadridigitatus, Cope; Sala- mandra quadridigitata, Holbrook. Color dirty yellow, with minute dark brown spots or dorsal lines and irregular lateral spots of a similar shade; abdomen bluish silvery white; head large; tongue fully boletoid, never adherent towards the front; limbs moderate; toes distinct; tail very long. Length 3/4 inches. Habitat South-eastern Georgia. Found under decaying wood, comes out during wet days and after dusk. Insectivorous. 8. Spelerpes, Rafinesque. Synonyms, Cylindrosoma, Tschudi; Cylindrosoma et Bolitoglossa, in part Dumeril and Bibron; Spelerpes and Pseudotriton, Baird, Hallowell; Spelerpes Ophioba- trachus, Gyrinophilus, Stereochilus, and Thorius, Cope. Vomerine teeth in a transverse row behind the inner nares, interrupted medially; sphenoidals in two elongated 82 CADUCIBRANCHIATA. 1 groups, separated from each other, usually narrower in front, and diverging behind; tongue boletoid; head short depressed; body cylindrical, slender; digits free, four in front, five behind; tail long, tapering, and distally com- pressed. Body with distinct spots or bands. (a) Body spotless, or with minute dots. (h) a. Costal furrows 15-17. (b) a. Costal furrows 14 or less. (c) b. Color in the main red. . . . . . . .S. RUBER. (4) b. Color cinereous and white with black, S. MARGINATUS. (11) c. Inner toes rudimentary. (d) c. Inner toes not rudimentary. (e) d. Spots yellow, licheniform. S. LEPROSUS. (7) S. BELLII. (8) d. Spots red, in two dorsal pyriform series. e. Color above yellow. (f) e. Color above cinereous, lines black. S. BILINEATUS. (1) e. Color above brown. (g) f. With dark spots; no vertebral line....S. LONGICAUDUS. (2) f. With black vertebral line. S. GUTTOLINEATUS. (3) g. Costal furrows 14, white be- low..S. PORPHYRITICUS. (10) g. Costal furrows 13, yellowish clouded below. S. PENNATULUS. (12) SPELERPES. BILINEATUS. LONGICAUDATUS. GUTTOLINEATUS. RUBER. CHIROPTERUS. CEPHALICUS. LEPROSUS. BELLII. MULTIPLICATUS PORPHYRITICUS. MARGINATUS. PENNATULUS. LINEOLUS. VERMICULARIS. Above Cinereous. Yellow. Color. Below Yellowish. Lighter. Yellowish. Mottle. Red. Brownish Black. Brownish. Black. Paler. Impure White. Impure White. Brown. Color Black. Black. Black. Black. None. None. Yellow. Black. Paler. Red. Brown. Lighter. Pale Brown. White. Cinereous. White. Brown. Black. None. Gray. Black. Yellowish cloud- ed. Gray. Paler. None. Black. Spots. Shape Dorso-lateral Lines. Spots and Bars. Lines nd Bars. Circular. None. None. Vomerine & Sphenoid Separate. Separate. Separae. Contiguous. Separate. Separate. Licheniform. Separate. Pyriform in two None. Band with “V” series. Separate. Separate. Irregular. Separate. Dots and Lines. form spots. None. Minute. Contiguous. Separate. Separate. Separate. Teeth. Costal Furrows, Fourteen. Inner Toes. Developed. Tail at Base. Almost Tetragonal. Thirteen. Developed. Subround. Thirten. Fifteen & Sixteen. Eleven & Twelve Eleven & Twelve Twelve. Twelve. Develoed. Subroud. Developed. Round. Rudimentary. Rudimentary. Rudimentary. Rudimentary. Twenty-one. Small. Round. Round. Round. Round. Round. Fourteen. Developed. Round. Seventeen. Developed. Compressed. Thirteen. Short. Fourteen. Subquadrate. Rudimentary. Constricted. Nineteen. Short. Length. 234 inches. 5 inches. 17 inche 5 inches. 3 inches. 3 inches 3½ inches. 8 inches. 34 inches. 5.7 inches. 2 11-12 inches. 2 inches. 2% inches. 63% inches. Breadth of Head. 24 lines. 4 inch. 6 lines. 3 lines. 3 lines. .3 inch. Habitat. U.S. east of the Miss. U. S. east of the Miss. S.Caroha to Alabama U.S. east of Rocky Mts Mexico. Mexico. Mexico. 6 lines. Mexico. .22 inch. Arkansas. 2 lines. 1 3-5 lines. Alleghany Mts. Georgia. Mexico. Mexico. Mexico. } CADUCIBRANCHIATA. 83 h. Costal furrows 21......S. MULTIPLICATUS. (9) h. Costal furrows 19. h. Costal furrows 14. • h. Costal furrows 11-12. S. VERMICULARIS. (14) .S. LINEOLUS. (13) i. Vomerine teeth prolonged outwardly be- yond nares. S. CEPHALICUs. (6) i. Vomerine teeth not prolonged outwardly beyond nares. ......S. CHIROPTERUS. (5) 1 Spelerpes bilineatus, Green. (14) : STRIPED-BACK SALAMANDER. Synonyms, Salamandra bilineata, Green, Holbrook, Harlan, Cuvier, De Kay; Salamandra flavissima, Har- lan, Holbrook; Salamandra cirrigera, Green, Harlan; Spelerpes cirrigera, Baird, Gray, Hallowell; Bolitoglos- sa bilineata, Dumeril and Bibron. Color above cinereous, with two or three longitudin- al black lines; vertebral line narrow, but broader in front, sometimes nearly or quite effaced; below yellow or yellowish white; color very much obscured by alco- hol; head oval, eyes ovate; iris yellow; postorbital and parotid folds distinct, gular only marked by a cicatrice; costal grooves fourteen, in most specimens indistinct; limbs slender; digits long, excepting the first and last; tail nearly as long as the body, sometimes longer. 84 CADUCIBRANCHIATA. Length 234 inches. Tail 14 66 Head to gular fold 3% inch. Breadth of head 3-16" Habitat Maine to Florida, Louisiana, and Wisconsin. Common. Lives under stones and decaying matter in woods and moist places, especially along the banks of brooks and in shallow water, and is very active. Var. cirrigera seems to differ from this mainly in the possession of two barbels between the nostrils and lip in the male; they are not present in the female. Green (9, b) says, "when these animals were alive the cirrhi or nasal appendages were about one-fourth of an inch long. From the situation where they were found, and from their general appearance, they must be placed among the Land Salamanders; but their fleshy cirrhi seems conclusively to prove that their principal resort must be in the water." 2. Spelerpes longicaudus, Green. (14) THE LONG-TAILED SALAMANDER. Synonyms, Salamandra longicauda, Green, Holbrook, De Kay, Harlan; Spelerpes lucifuga, Rafinesque; Cy- lindrosoma longicaudatum, Tschudi, Dumeril and Bib- ron; Saurocercus longicauda, Fitzinger. Color yellow; body, head, chin, and gular region cream-colored, belly yellowish white; spots dark color- CADUCIBRANCHIATA, 85 ed, numerous, and irregular in form, scattered thickly over the upper and lateral surface; below immaculate; head nearly oval, more depressed than in the preceeding species; vomerine teeth and sphenoidal groups not con- tiguous; eyes elongated, not very prominent; nostrils la- teral and minute; postorbital fold invisible, parotid well marked, but the place of the gular represented by a scar; limbs slender; digits moderate, widely separated; tail very long, nearly equaling and sometimes exceeding twice the length of the body; back without a longitu- dinal groove, but with the spots here and upon the sides. arranged somewhat in rows. Length 5 inches. Tail 3 I-5" Head to gular fold 5% inch. Breadth of head 1/4 66 Habitat Maine to Florida, Louisiana and Wisconsin. Frequents running water in deep caverns, and thus re- sembles the Proteus of Carniola. Its subterranean hab- its prepare us to expect what we actually find it to be, one of our most beautiful specimens of Salamander. Spelerpes guttolineatus, Holbrook. Salamandra guttolineata, Holbrook, De Kay; Cylin- drosoma guttolineatum, Dumeril and Bibron. Color above pale yellowish, with a black vertebral line which bifurcates upon the nape in order to allow its two branches to terminate interior to the eyes; a lateral band of black containing small square spots and edged r I 86 : CADUCIBRANCHIATA. with a white line below; body beneath white, dark gray, or mottled; tail black, barred with yellow, carinate above, longer than the body, and sometimes equaling twice the distance from muzzle to posterior of anus; head short, in size equal to the trunk; sphenoidal and. vomerine teeth not contiguous; costal furrows thirteen; inner toes longest. Length 7 inches. Habitat Mountains of South Carolina, Georgia, and Alabama Spelerpes ruber, Daudín. THE RED SALAMANDER. Synonyms, Salamandra rubra, Daudin, Holbrook, De Kay: Salamandra maculata, Green, Storer, Harlan: Salamandra rubriventris, Green; Salamandra subfusca, Green; Salamandra fusca, Harlan; Pseudotriton sub- fuscus, Tschudi; Mycetoglossa ruber, Bibron; Myceto- glossus subfuscus, Bonaparte; Siren operculata, Palissot Beauvois; Proteus neo Cæsariensis, Green; Pseudotri- ton ruber, Baird; Pseudotriton sticticeps, Baird; Pseu- dotriton montanus, Baird; Pseudotriton flavissimus, Hallowell. Color above red with numerous nearly circular small black spots; beneath less vivid and immaculate, except in the gular region; in alcohol the color is dark yellow- • CADUCIBRANCHIATA. 87 ish or light brownish, and the spots brown; head in per- pendicular longitudinal section nearly a perfect triangle, in width equal to the body and not separable from it; muzzle round; sphenoidal and vomerine teeth contiguous at the anterior margin of the former, the latter continu- ing outwardly to posterior of inner nares; eyes promi- nent; nostrils minute; postorbital and parotid grooves indistinct; gular fold strongly marked; costal furrows fourteen to sixteen; tail and anal region with numerous circular folds indistinct above and disappearing distally; a longitudinal groove runs from the anus towards the extremity of the tail; skin upon the back forming a longi- tudinal ridge from the nape backwards; limbs moderate, hind ones much the stronger; inner toes longest; tail round at the base, but compressed distally. Length 5 inches. Tail 1/4 Head to gular fold 5% inch. Breadth of head 1/2 66 Habitat United States east of the Rocky Mountains. Common. The Red Salamander is found under stones in shallow water and marshes. When discovered in the former they seem to be alarmed, and endeavor to get away, but in the latter situation show no disposition to stir. They are apparently nocturnal animals, remaining in conceal- ment during the day, and at night sallying forth in search of prey. Their food is mainly small worms, though Hal- lowell found in the stomach of one a coleopterous in- sect, and the tail and posterior limbs of a Salamander, probably Plethodon niger, and they are themselves de- voured by the American Bittern, and doubtless many other animals in like manner prey upon them. In con™ 88 CADUCIBRANCHIATA. finement they rarely leave the water in the daytime, but usually do so at night. Green's description (9, c) of Proteus neo Cæsarien- sis gives the characteristics of the young, and is as fol- lows: "Cauda mediocri et compressa forma pinnæ, cor- pore albido. Length between four and five inches; tail as long as the body, tapering and forming a fin; tongue short, round, adhering to the lower jaw and having a cartilag- inous edge; branchiæ persistent; eyes very small; nos- trils invisible; back dirty white, with small dots, margin- ed with a narrow red line, commencing at the fore shoul- der and terminating at the posterior legs, beneath whit- ish; posterior feet five-toed, anterior four-toed." 5 Spelerpes chiropterus, Cope. Synonym, Spelerpes orculus, Cope. Color above brown or black, paler along the verte- bral line, but not forming a longitudinal band; beneath dirty white; head oval; muzzle truncate; vomerine teeth forming an arch not contiguous with the sphenoidal groups; gular fold distinct; costal furrows eleven or twelve; limbs moderate; digits short, depressed, free, in- ner represented only by a wing-like rudiment; tail com- pressed, flat above, sometimes cylindrical at base, but CADUCIBRANCHIATA. 89 apering rapidly, one-fifth longer than the distance from muzzle to posterior of anus. Lenth 3 inches. Head to gular fold 3 4-5 lines. Tail 1.9 (6 Habitat Mexico. Breadth of head Spelerpes cephalicus, Cope. 3 66 Very much resembles the preceding, of which it is probably a variety; without seeing a specimen, the only points of difference seem to be the prolongation in this of the vomerine teeth outwardly beyond the inner nares, the short and stouter form, and the marbling of the gu- lar region. Habitat Table Lands, Mexico. 7. Spelerpes leprosus, Cope.. Color black above, brown below; sides and gular re- gion licheniform, spotted, with pale yellow which changes to gray in alcohol; head broad; muzzle short truncate; vomerine series prolonged externally beyond the inner nares, touching medially, but not contiguous } • • 90 CADUCIBRANCHIATA. with the sphenoidal groups; postorbital and parotid gooves indistinct; gular fold well marked; costal fur- rows twelve; limbs moderate; digits short, but longer than in chiropterus, round, and terminating in swollen extremities; tail cylindrical and tapering. Length 32½ inches. Tail 11/2 I 66 Head to gular fold 4-5 inch. Breadth of head 3 Habitat Elevated Regions of Eastern Mexico. 66 8 Spelerpes bellii, Gray. (12, b) Synonyms, Oedipus platydactylus, Tschudi, Baird: Bolitoglossa Mexicana, Dumeril and Bibron; Salaman- dra guttata, Wiegman. Color black, with two dorsal series of pyriform red spots; in alcohol changes to plumbeous with white spots; the two series of spots unite into one nodulous row above the anterior limbs, but bifurcate upon the nape and swell into two large blotches in the parotid region; be- low immaculate; head short and broad; muzzle round- ed; vomerine teeth prolonged externally beyond the in- ner nares, and not contiguous with the sphenoidal groups; body large and strong; limbs stout; digits broad, short, depressed, free or uery nearly so, never palmate as rep- resented in Dumeril and Bibron's plate; extremities of toes with small round pellets; gular and postorbital folds prominent; costal furrows twelve or thirteen, strongly CADUCIBRANCHIATA. 91 , marked, as are also the caudal annuli; tail cylindrical and swollen at the base. Length 8 inches. Tail 43/4 " Habitat Eastern Mexico. Head to gular fold 23 inch. Breadth of head 1/2 66 9. Spelerpes multiplicatus, Cope. Color uniform brown, below a lighter brown, espe- cially around the throat and chin; sides rarely of a pink- ish hue, and sometimes the belly and gular region are pale yellow; head much depressed; muzzle truncate; vomerine teeth in two short series, not touching medial- ly, and well separated from the sphenoidal groups; toes short, inner minute; costal furrows twenty-one; tail round at base, distally compressed, and carinate. Length 34 inches. Breadth of head .22 inch. Habitat Red River, Arkansas. 10. Spelerpes Porphyriticus. Green. (14) SALMON-COLORED SALAMANDER. Synonyms, Salamandra porphyritica, Green, Hol- brook; Salamandra salmonea, Storer, Holbrook, De 92 CADUCIBRANCHIATA. Kay; Pseudotriton salmoneus, Baird, Hallowell, Allen; Spelerpes salmoneus, Gray, Cope; Gyrinophilus porphy- riticus, Cope; Amblystoma salmoneum, Dumeril and Bibron. Color yellowish brown above; sides salmon color, with a tinge of yellowish; upper surface irregularly marked with gray, below white; tail yellowish, head large, flattened; muzzle truncate; eyes prominent, and distant from each other; inner nares large; nostrils small; gular fold strongly marked; canthus rostralis prom- inent; dorsal longitudinal groove present; costal furrows usually fourteen; limbs moderate; digits entirely distinct; tail compressed and carinate. Length 5.7 inches. Tail 2.3 66 Habitat Alleghany Mountains from Vermont to Ala- bama. Common. Found on moist land and in still water. It attempts self-defense, snaps savagely, and throws its body into contortions when disturbed. In confinement it appeared healthy for a year, and lived upon flies. 11. Spelerpes marginatus, Hallowell, Synonyms, Pseudotriton marginatus, Hallowell; Ste- reochilus marginatus, Cope. Color above dark cinereous, dimly shaded with yel- lowish; sides with a band of dusky white, edged with CADUCIBRANCHIATA. 93 black, extending from limb to limb; beneath white, with minute black spots or blotches; head small, depressed; muzzle round; eyes lateral, not prominent; inner nares small; sphenoidal teeth in several rows, contiguous with the vomerines; tongue small, boletoid; præmaxillary bones united; fontanelle none; gular fold distinct; cos- tal furrows seventeen; tail compressed from base. Length 2 11-12 inches. Tail 1/3 (6 Head to gular fold ½ inch. Breadth of head Habitat South-eastern Georgia. 16 CC 12. Spelerpes pennatulus, Cope. Synonym, Thorius pennatulus, Cope. Color brown above with a gray dorsal band, below yellow and clouded; margins of dorsal band serrate with V form divergent spots; head neither depressed nor sep- arable from the body; muzzle quite prominent; sphe- noidal teeth in two pyriform groups, narrowest in front; vomerines consisting of four or five teeth on each side; postorbital grooves and gular fold not prominent; costal furrows slightly marked below, invisible above; limbs moderate; digits short and separate, or slightly palmate at base; tail subquadrate near the anus, not carinate, but compressed distally. Length 2 inches. Tail I 66 Habitat Orizava, Mexico. Head to axilla 3 3-5 lines. Breadth of head 1 3-5 66 a 94 CADUCIBRANCHIATA. Spelerpes lineolus, Cope. Synonym, Opheobatrachus lineolus, Cope. Color above black, sides paler; chin and gular region cinereous; muzzle truncate; vomerine teeth in a long series; gular fold distinct; costal furrows fourteen; an- terior limbs weak, posterior stout; toes flat, inner rudi- mentary; skin finely wrinkled; tail constricted at base. Length 22 inches. Head to axilla 6 4-5 lines. Tail I 12/3 66 Habitat Table Lands of Eastern Mexico. Spelerpes vermicularis, Gray. Synonyms, Ophiobatrachus vermicularis, Gray, Cope; Oedipina uniformis, Keferstein. Body very much elongated, vermiform, hence the name; head small; muzzle obtuse, ovate; costal furrows nineteen; skin smooth, closely and minutely punctate with black; teeth minute; vomerines in an arched row; sphenoidals not contiguous with each other; skull mem- • : CADUCIBRANCHIATA. 95 branous above; parietals distinct, scale-like; limbs long, slender, weak, and distant from each other; toes short. Length 63% inches. Tail 44 66 Habitat Costa Rica. 9. Hynobius, Tschudi. Synonyms, Hynobius and Pseudo-Salamandra, Tschu- di; Hynobius and Molge, Gray; Ellipsoglossa, Dumeril and Bibron, Hallowell. Vomerine and palatine bones not dentigerous; sphenoi- dal teeth in two rows, one on each side of the median line, divergent in front and approximated behind, thus resembling a V; tongue oval, entire, free only upon its sides; toes four in front, five behind; tail much compress- ed. Species both aquatic. This genus is especially characterized by the arrange- ment of the teeth, it being the only one in which the sphenoidal teeth are widely divergent in front, and also by having the tongue attached anteriorly and posterior- ly, and hence not protrusible. Body short and thick; color yellowish brown. H. NEBULOSUS. (1) Body very much elongated: color bluish or slaty gray. H. NæVIUS. (2) 96 CADUCIBRANCHIATA. 1. Hynobius nebulosus, Schlegel. Synonyms, Salamandra nebulosa, Schlegel; Ellipso- glossa nebulosa, Dumeril and Bibron, Hallowell. Color yellowish brown, more or less darkened with very fine marblings; usually a yellow caudal stripe above and below; trunk short and thick; truncal vertebræ sev- enteen; head not separable from the body; gular fold not very prominent. Length 4 inches. Tail 66 2 Head to axilla 1 inch. I Breadth of head .47 66 Habitat Japan. 2. Hynobius nævius, Schlegel. (12) Synonyms, Salamandra nævia, Schlegel; Pseudo-Sal- amandra nævia, Tschudi; Molge nævia, Bonaparte; Molge striata, Merrem, Gray: Ellipsoglossa nævial Dumeril and Bibron, Hallowell. Color bluish to slaty gray, with small lighter spots; sides marbled; skin smooth; body elongated; trunca, vertebræ eighteen; head scarcely separable from the CADUCIBRANCHIATA. 97 body; eyes very prominent; postorbital and gular fold strongly marked; parotid mass distinct; dorsal longitu- dinal groove present. Length 5.12 inches. Tail 2 66 Head to axilla 1.1 inches. Breadth of head .4 66 Habitat Japan. 10. Salamandra, Wurfbain, Laurenti. Teeth in two longitudinal rows upon the palatine bones overlapping the sphenoid; transverse or vomerine series none; tongue free only at its sides, and partially so be- hind; parotids very prominent; body stout; ribs rudi- mentary; head large, depressed; skin usually rough; a series of mucous pores present on each side; limbs strong; toes large, distinct, four in front and five behind Spots large yellow. (a) Spots none. a. Palatine teeth in arches. a. Palatine teeth parallel. .S. atra. (3) S. MACULOSA. (1) .S. CORSICA. (2) 1. Salamandra maculosa, Laurenti. Synonyms, Salamandra maculata, Merrem; Salaman- dra vulgaris, Cloquet; Salamandra terrestris, Lacepede and others. 98 CADUCIBRANCHIATA. Color black, with large yellow blotches arranged over the upper and lateral surfaces; head ovate; muzzle form- ing an obtuse angle; nostrils directed forward; eyes not very prominent; parotids exceedingly large; postorbital and parotid grooves distinct; gular fold strongly mark- ed; costal furrows eleven; dorsal longitudinal groove barely visible; tail annulate, especially in the anal region, carinate below, and compressed from the base. Length 6 inches. Tail 24 66 Habitat Europe. Head to gular fold 7–8 inch. Breadth of head 34 66 In the daytime lives under stones, old walls, etc., but comes out during rain, and at night to seek its prey, which consists of flies, beetles, young snails, worms and the like. Reproduction ovoviviparous. Dumeril and Bibron (12) distinguish three varieties ac- cording to the disposition of the yellow spots but these are found to readily shade into one another. 2. Salamandra Corsica, Savi. (12, b) Synonym, Salamandra moncherina, Bonaparte. Color black; upper surfaces with numerous, large, ir- regular, yellow, spots; head, muzzle, nostrils, eyes, par- otids, grooves, and appearance of the body as in S. maculosa; teeth in four longitudinal rows, the two outer somewhat curved, the inner parallel for more than two CADUCIBRANCHIATA. 99 thirds the length, and then curved so as to enclose an oval or circular space. Length 6.3 inches. Tail 3.15 66 Habitat Corsica, Sardinia, and Algeria. Found in damp places. 3. Salamandra atra, Laurenti. (5) THE BLACK SALAMANDER. Synonyms, Lacerta Salamandra, Gmelin; Salaman- dra nera, Bonaparte; Salamandra nigra, Gray. Color uniform black; head depressed; interval be- tween the parotids nearly cruciform; gular fold well marked; costal furrows distinct; lateral pores present; tail annulate, tapering, compressed, but not carinate. Length 4 4–5 inches. Head to axilla .8 inch. Diameter of body .5 Tail 2 2-5 66 66 Habitat Mountains of Southern Europe near the snow line. Reproduction viviparous. The mother brings forth two young, and can expel them upon the land instead of in the water, 100 CADUCIBRANCHIATA. 11. Salamandrina, Fitzinger. Palatine teeth in two arched rows nearly contiguous in the front half of their course, and widely separated be- hind; tongue oblong, entire, free laterally and posterior- ly; skull much depressed, broad; fronto-temporal arch distinct, but joined to the cranial bones; body granular; ribs well developed; tail long, subcylindrical; toes four in front and five behind. 1. Salamandrina perspicillata, Fitzinger. (12, b) Syonyms, Salamandra tridactyla, Daudin, Bonnaterre; Molge tridactylus, Merrem; Seiranota condylura, Barnes; Seiranota perspicillata, Gray. Back dark brown or black, with a half-circular line of ruddy yellow upon the head, the ends of which point towards the eyes; below whitish, with dark brown or black spots; lower part of the feet and tail red; under jaw white; body slender; lateral line of pores wanting; vertebral region with a chain-like process, which is con- tinued upon the tail, the latter with knotty lateral protu- berances. Length 3½ inches. Habitat Appenines of Tuscany. Tail 2 1-5 inches. CADUCIBRANCHIATA. ΙΟΙ 12. Pleurodeles, Michælles, Palatine teeth in two longitudinal, almost parallel rows which terminate anteriorly much in front of the in- ner nares; tongue small, round, or oval, slightly free posteriorly and laterally; skull depressed; fronto-tem- poral arch distinct; ribs greatly developed; parotids present; lateral line of pores low down between the ax- illa and groin; tail long, compressed; toes four in front, and five behind. Pleurodeles Watlii, Michælles. (12, b) Synonyms, Salamandra pleurodeles, Schlegel; Pleu- rodeles exasperatus ? Dumeril and Bibron. Brown or whitish gray, with yellow marblings and dark spots, more yellow upon the sides; body short and thick; skin granular above, smooth below; gular fold distinct; tail and limbs, as well as fingers and toes, slender. Length 7½ inches. Tail .6 4.7 Habitat Spain. Breadth of head .9 inch. 102 CADUCIBRANCHIATA. 13. Bradybates, Tschudi. Palatine teeth few; tongue very small, round, adher- ent by its whole under surface; parotids none; body short, broad, the sides perforated by the ribs; toes four in front and five behind. Bradybates ventricosus, Tschudi. Color brownish yellow, with darker spots; head de- pressed; eyes small and remote from each other; nos- trils almost under the eyes; tail short, subcylindrical, and differs from the uniform one of Pleurodeles; body depressed, very thickly covered with fine warts. Habitat Spain. Dumeril and Bibron consider this a young Pleurode- les, as it possesses many of the characteristics of that genus, and differs from it mainly in the form of the tail. Hallowell cites a specimen in the Bonaparte Collection, of the Academy of Natural Sciences, labeled Brady- bates Poireti, which he says is evidently a young Pleu- rodeles. He also quotes Tschudi as saying of this spe- cies, "Zahne ganz Plethodon," but considers it manifest- ly an error. CADUCIBRANCHIATA. 103 14 Notophthalmus, Rafinesque. Synonyms, Diemyctylus, Rafinesque, Cope; Cynops, Tschudi; Taricha, Gray. • Teeth in two longitudinal series, closely approximated in front, divergent behind; tongue attached anteriorly and posteriorly, and with only a small portion of its la- teral margins free; postorbital arch long and strong, formed by the union of the tympanic and frontal bones; palatine processes cuneiform; spinous processes of ver- tebræ quadrangular; ribs rudimentary; tail small, com- pressed from the base; toes four in front and five behind the first and fifth rudimentary. Spots beneath numerous and black. (a) Spots beneath few or none. (b) a. Skin smooth... a. Skin above rough. • b. Skin much granulated. (c) b. Skin slightly granulated.. ..N. VIRIDESCENS. (1) N. PYRRHOGASTER. (3) …….N. LÆVIS. (4) c. Color beneath bright yellow.N. TOROSUS. (2) c. Color beneath plumbeous.. N. CHINENSIS. (5) 1 104 CADUCIBRANCHIATA. 1. Notophthalmus viridescens, Rafinesque. THE CRIMSON SPOTTED TRITON. Synonyms, Triturus viridescens, Rafinesque; Die- myctylus viridescens, Rafinesque, Hallowell, Cope, Allen; Diemyctylus miniatus, Rafinesque, Hallowell, Cope, Al- len; Salamandra stellio, Say; Salamandra symmetrica, Harlan, Holbrook, De Kay, Storer; Salamandra puncta- tissima, Wood; Salamandra dorsalis, Harlan, Holbrook, Storer; Salamandra millepunctata, Storer; Salamandra coccinea? De Kay; Notophthalmus miniatus, Storer; Triton millepunctatus, De Kay; Triton dorsalis, Hall; Triton symmetricus, punctatissimus, et dorsalis, Dumer- il and Bibron. Color varying from olive to scarlet above, from orange to red beneath, the two colors abruptly separated; sides with five or more ocellate spots, often arranged in a line and sometimes with other similar but smaller spots low- er down; entire under surface punctate with black dots, which sometimes cover the back and tail as well; head oval; muzzle rounded at the apex; commissure of the mouth not extending behind the posterior canthus of the eye; gular and postorbital folds wanting; costal grooves about fourteen, indistinct; back usually with a dorsal CADUCIBRANCHIATA. 105 crest; tail strongly carinate above and below; limbs long and slender. Length 34 inches. Tail 134 66 Head to axilla ½ inch. Breadth of head 1/4 66 Habitat Maine and Vermont to Florida, Illinois, and Northern Shore of Lake Superior. Common. Found under stones, and decayed wood, and also in brooks. Holbrook observed them swimming with vi- vacity under ice an inch thick. Storer found fragments of Lymnea and Physa in their stomachs, and also ascer- tained that they cast their skin in June, and that the new cuticle was similar in all respects to the old. 2. Notophthalmus torosus, Eschscholtz. Synonyms, Triton torosus, Eschscholtz, Hallowell; Triton ermanni, Wiegman; Triton granulosus, Skilton, Hallowell; Taricha torosus, Gray, Hallowell; Diemyc- tylus torosus, Cope. Color dark brown, beneath yellowish; body strong, in alcohol very much granulated; head large, ovate; muz- zle angular, rounded at apex; teeth not contiguous in front; commissure decurved under the eye; gular fold well marked, other folds and costal grooves indistinct; limbs long and strong; tail compressed so as to form a fin above and below. Length 5 7-8 inches. Tail 3 Head to axilla 7-8 inch. Breadth of head 5% Habitat Oregon City and San Francisco. 106 CADUCIBRANCHIATA. 3. Notophthalmus pyrrhogaster, Boie. Synonyms, Molge pyrrhogaster, Boie; Salamandra subcristata, Schlegel; Cynops subcristatus, Tschudi; Cynops pyrrhogaster, Gray; Triton subcristatus, Dum- eril and Bibron, Hallowell; Diemyctylus pyrrhogaster, Cope. Color above deep brown, often with scattered yellow spots; beneath red, with numerous irregular black spots or dots; head large, flattened; muzzle obtuse; body warty, or with a very granular skin above, and with lat- eral tubercles at the origin of the throat; dorsal crest small and almost effaced. Length 5 inches. Tail 234 66 Habitat Europe, Northern Africa, and Japan? Common in the stagnant water of the overflowed fields. 4. Notophthalmus lævis, Baird and Girard. Synonyms, Taricha lævis, Baird and Girard; Diemyc- tylus lævis, Cope. CADUCIBRANCHIATA. 107 Baird and Girard (27, d) give a very imperfect de- scription of this as follows: "Allied to T. toroso, gray, but smoother, having but slight indications of granulations. Tail very much compressed, with a fringe along the upper edge, and the posterior half of the lower. Color above dark purplish brown, beneath bright yellow, the line of demarkation very distinct. Body 3 inches long; tail 4½." Habitat San Francisco. 5 Notophthalmus Chinensis, Gray. Synonyms, Cynops Chinensis, Gray. Color above olive brown, beneath bluish black, with small, irregular, yellow spots on the gastræum, and un- der sides of the limbs; tail yellowish on its under edge; sometimes gray above, margined with black; skin gran- ular; head and parotid glands similar to N. pyrrhogas- ter; size large. Habitat North Eastern Coast of China, inland from Ningpo. 108 CADUCIBRANCHIATA. 15. Triton, Laurenti. Palatine teeth in two longitudinal series, almost paral- lel or approximated in front, and divergent behind; tongue fleshy, papillose, round or oval, free only upon its sides, in T. punctatis slightly so all around; fronto-tem- poral arch usually incomplete or wanting; parotids not very prominent; body smooth or warty, flattened below; digits developed, four in front and five behind; tail much compressed, with vertical cutaneous margins at the pe- riod when the animal inhabits fresh water. This genus is especially difficult to understand. This difficulty results from the changes they undergo. Some- times they exist upon the land, and then resemble the terrestrial Salamanders. At other times, especially near the epoch of fecundation, they betake themselves to wa- ter, assume more beautiful and varied colors, produce a dorsal crest in the male, and exchange their round tail for one exceedingly compressed. These changes are so great, and the difference between the sexes so marked, as well as the variations due to age, that at times we can scarcely believe that certain animals observed are the off- spring of a common parent. Robin (34) has some very interesting observations on the fecundation of Triton cristatus, alpestris, palmatus, and punctatus. He there shows that in them, as also in the Siredon, spermatozoids CADUCIBRANCHIATA. 109 occur in the female cloaca, and to some distance up in the oviducts. These were found in pregnant females not engaged in oviposition as well as those that were, thus showing that the eggs were fecundated some time prior to leaving the mother. Perhaps the best analysis that can be given is the fol- lowing modeled after Dumeril and Bibron: Skin of the back rugose. (a) Skin of the back smooth. (d) a. Belly spotted black. (b) a. Belly immaculate. (c) b. Palatine teeth in two nearly parallel rows. T. CRISTATUS. (1) b. Palatine teeth contiguous in front, widely divergent behind.. T. BLASII, (8) c. Dorsal band wanting..T. MARMORATUS. (2) c. Dorsal band large, yellow. d. Belly spotted black. (e) d. Belly immaculate. (f) T. PYRENÆUS. (7) e. Spots large, round; no yellow lateral band. T. PUNCTATUS. (3) e. Spots simply dots; large yellow lateral band. T. VITTATUS. (5) f. Fronto-temporal arch incomplete; lateral line of pores none; color cinereous. T. ALPESTRIS. (4) f. Fronto-temporal arch complete; lateral line with distant, single pores; color tawny. T. PALMATUS. (6) · IIO CADUCIBRANCHIATA. *1. Triton cristatus, Laurenti. (20, 42) Synonyms, Salamandra aquatica, Wurfbain, Ray, Pet- iver, Daleus, Daudin; Salamandra Batracon, Camerari- us; Salamandra platyura, Daubenton; Salamandra lati- cauda, Bonnaterre; Salamandra cristata et pruinata, Schneider; Salamandre cretee, Latreille; Salamandra platycauda, Rusconi; Lacertus aquaticus, Gesner, Gro- novius; Lacerta palustris, Linnæus; Lacerta porosa, Retzius; Lacerta lacustris, Blumenbach; Molge palus- tris, Merrem; Hemisalamandra cristata, Duges; Triton marmoratus, Bibron; Triton cristatus et Bibroni, Bell; Neurergus crocatus? Cope; Chioglossa? Du Bocage. Color above brownish green to black; beneath orange with black spots of considerable size; upper surfaces with dark blotches more or less distinct; sides with sim- ilar dark markings and projecting white points; head long, much depressed; muzzle round; palatine teeth in two long, widely separated, and nearly parallel rows terminating anteriorly in front of choane; inner nares large, equidistant from the outer; nostrils moderate; eyes elongated; commissure terminating under the or- bit; gular fold usually well marked; dorsal crest well developed, reaching from muzzle to tip of groin; limbs *For Hybridation in this animal (see 42, b) and for showing that the limbs may be amputated and regenerated, but not if their basilar portion has been removed, (see 35, a and c,) and for reproduction (see 45, a.) CADUCIBRANCHIATA. III moderate; inner toes very long and free; feet flattened, with two well marked plantar tubercles; tail much com- pressed, with a membrane or fin above and below. Length 434 inches. Head to gular fold 7 Breadth of head 5½ Tail 66 2 lines. Habitat Europe and Northern Africa. Common. 66 Dumeril and Bibron (12, b) recognize three varieties. A. Very large, 8 inches long, black above, and the white lateral points wanting. B. Length four to five inches, brown above, or grayish in the males. C. Triton car- nifex, Laurenti, are females of small size, without dorsal crest. In a specimen before me from Leeds, England, one hind foot has seven toes, of which the anterior three are distinct, the other four all united at the base, and in pairs towards the tips, the pairs being digitally distinct, and each toe separate at the very tip. In other speci- mens this abnormal development (which is probably a result of injury) does not occur. Cope (31, g) describes as Triton subcristatus an ani- mal which probably belongs here. The only points of difference which appear in his description are the absence of the white lateral dots, and the relative length of the tail. He also quotes Schlegel to show a different osteol- ogy for the head and a less number of vertebræ, both of which, without seeing the specimen in question, seem to me doubtful. Habitat Loo Choo Islands. 112 CADUCIBRANCHIATA. 2. Triton marmoratus, Latreille. (12, b, 42) Synonyms, Triton Gesneri, Laurenti, Schneider; Tri- ton carnifex, Laurenti, Bonaparte; Salamandre marbree, Latreille, Daudin; Hemisalamandra marmorata, Duges; Pyronicia marmorata, Gray. Color greenish, marbled with black or brownish red, with white points; dorsal band red or yellow; belly im- . maculate; body strong; lateral line of pores well mark- ed; skin subtuberculose; costal furrows not prominent; limbs stout; hinder toes somewhat fringed. Length 6 inches. Habitat France and Portugal. Tail 2.6 inches. A variety, or rather three varieties, of Triton crista- tus ? 3. Triton punctatus, Latreille. Synonyms, Triton Parisinus, Laurenti; Salamandra tæniata, Schneider; Salamandra punctata, Latreille, Daudin; Salamandra elegans, Daudin; Molge punctata, et cinerea, Merrem; Molge tæniata, Gravenhorst; Lis- sotriton punctatus, Bonaparte, Bell, Cope; Lophinus CADUCIBRANCHIATA. 113 punctatus, Gray; Triton lævis, Higginbottom, Pyronicia punctata, Gray. Color greenish to yellow above, with round black spots arranged in rows, and with five lines of black upon the neck; beneath yellow, with large round black spots arranged in two or three lines; dorsal crest of males at epoch of fecundation very distinct. Length 2½ inches. Habitat France. 4. Triton alpestris, Laurenti. Synonyms, Triton Wurffbanii, Laurenti; Salamandra rubriventris, Daudin; Molge alpestris, Merrem; Lisso- triton alpestris, Bonaparte; Hemitriton alpestris, Duges, Gray. Color above cinereous, with black spots along the sides and margin of the lower jaw, and thus border the gastræum: ventral and gular region orange, immaculate, red during life; limbs and feet spotted with black, with half rings; digits slender, depressed; tail large, almost transparent, with numerous black spots below. Length 2½ inches. Habitat Italy and Austria. 114 CADUCIBRANCHIATA. 5. Triton vittatus, Gray. Synonyms, Molge vittatus, Gray; Ommatotriton vit- tatus, Gray; Lissotriton palmipes Var., Bell. Color above grayish white, with black dots arranged in lines; sides with a large, yellow band, margined above and below with black; beneath red or yellow with black spots; body smooth; lateral line of pores single, distinct; dorsal crest present in males, but interrupted over the loins; legs membranous on their inner edge; plantar tubercles subulate, present in front. Length 3 5-6 inches. Tail 134 inches. Habitat England, France, and Belguim. Dumeril and Bibron consider this species as doubtful and intermediate between Triton alpestris and T. pal- matus. 6. Triton palmatus, Schneider. Synonyms, Salamandra exigua, Laurenti, Rusconi; Salamandre suisse, Ragoumowski; Salamandra palmata, Schneider; Salamandre palmipede et abdominale, La- treille, Daudin; Salamandre abdominale, Bonaparte; ✔ CADUCIBRANCHIATA. 115 Triton exiguus, Bonaparte; Triton minor, Higginbot- tom; Molge palmata, Merrem; Lophinus palmatus, Gray; Lissotriton palmatus, Bell, 1849. Color various, above usually brownish olive, green, or tawny, with black spots often arranged in two lines; be- neath orange or yellowish often with a few black spots irregularly distributed; tail with a large cream-colored band on each side, margined with black dots; female paler; palatine teeth in two not contiguous series; body smooth or slightly granular; lateral lines of distant, sin- gle, indistinct, pores; dorsal crest in male present at times; back with three ridges; feet in male palmate, in female free; tail usually compressed and often terminat- ing distally in a filament. Length 23 inches. Habitat England, France, and Germany. Higginbottom states that at the time of reproduction the tail in the male is terminated by a filament three lines long, and the hind feet entirely palmate; but after the breeding season is past, the filament and membranes are absorbed, leaving the tail with a round tip, and the toes free. E " : 7. Triton Pyrenæus, Dumeril and Bibron. Color above brown, with a large yellow dorsal band, the margins of which are dentated and marked with 116 CADUCIBRANCHIATA. numerous black dots; beneath reddish yellow, immacu- late; body warty; tail much compressed. Length 3½ inches. Habitat Pyrenees. 8. Triton Blasii, De l' Isle, (42) Color above green with brown, undecided spots; be- low orange, often white or whitish upon the sides, with circular black spots; dorsal band of a silver shade in the males, yellow in the females; feet orange; digits with black rings; head elongated: muzzle round; palatine teeth contiguous in front, widely divergent behind; gu- lar fold distinct; body large and robust; dorsal crest in male very prominent, serrate above; pelvis articulated to the fifteenth or sixteenth vertebra; skin tuberculose, es- pecially upon the back and sides; tail short, very much compressed; toes distinct. Length 7.16 inches. Tail 3.23 66 Habitat France. CADUCIBRANCHIATA. 117 16. Euproctus, Gene. Palatine teeth in two longitudinal rows somewhat con- verging towards the front; tongue adherent anteriorly, free posteriorly and laterally; vomero-palatine processes cuneiform; head large; muzzle round; parotids none; skin rugose or warty; tail compressed; toes four in front and five behind. Palatine series of teeth closely approximated in front; skull elongated; fronto-temporal arch weak. E. PLATYCEPHALUS. (1) Palatine series widely separated; skull rounded; fronto-temporal arch strong...E. POIRETI. (2) 1. Euproctus platycephalus, Otto. Synonyms, Molge platycephalus, Otto; Euproctus Rusconii, Gene, Gray, Dumeril and Bibron; Megapter- na montana, Savi; Hemitriton asper et punctulatus, Duges; Calotriton punctulatus, Gray; Triton glacialis, 118 CADUCIBRANCHIATA. Phillippe; Triton punctulatus, cinereus, rugosus, Bibronii, et repandus, Dumeril and Bibron. Body above brownish olive, with traces of black; be- neath gray, with black or bluish black points or spots; head and skull rhombic; tongue oval; pterygoid and superior maxillaries united by the mediation of a jugal bone; lateral line of pores wanting; cloaca usually pro- longed. Length 234 inches. Habitat Spain, Pyrenees, Italy, Corsica, and Sardinia. : 2, Euproctus Poireti, Gervais. (12, b) Synonyms, Lacerta palustris, Poiret; Triton Poireti, Gervais, Gray; Triton nebulosus et Euproctus Rusco- nii, Guichenot; Glossoliga Poireti, Bonaparte, Gervais, Gray, Cope. Brown above with black spots beneath paler with buff and brown; head and skull semicircular; forehead flattened with scattered tubercles tipped with brown; muzzle rounded; fronto-temporal arch complete and strong; nares more separated than in the preceding species; pterygoid and maxillary bones united directly with one another; lateral pores single, small, arranged CADUCIBRANCHIATA. 119 in a continuous line; tail longer than the body, with a yellow band extending to its tip. Length 634 inches. Tail 3½ 66 Habitat Northern Africa. Breadth of head .59 inches. List of Salamandrida unknown to the writer either by a specimen or a good description: TRITON ENSATUS, Eschsch. Zool. At, Pt. V. Pl. 22, figs. 1–12. Habitat San Francisco. SALAMANDRA TERETICAUDA, Eschsch. Zool. At. Pt. V. p. 14. Habitat San Francisco. SALAMANDRA GREENI, Gray. Catalogued in Griff. Cuv. SALAMANDRA BEECHEYI, Gray, Zool. of Blossom Pl. 31, fig. 3. Catalogued in Griff. Cuv. SALAMANDRA OCELLATUS, equal to SIMILIS, Fitz. Fitz. neue Class. Rept. 1825. SALAMANDRA SINCIPUT-ALBIDA, Green, Jour. Acad. Nat Sci. 1818, p. 352. Habitat New Jersey. 120 CADUCIBRANCHIATA. • ?TRITURUS LUTESCENS, Rafinesque, 1832 Atlantic Jour. No. 3, p. 121. Habitat Kentucky. TRITURUS HYPOXANTHUS, Raf. 1820 Annals of Nature, No. 20. Habitat Kentucky. TRITURUS NEBULOSUS, Raf. 1820 Annals of Nature; No. 23. Habitat Long Island. į ་་ * OPHIOMORPHA. 121 OPHIOMORPHA, Nicholson. Synonyms, Gymnophyona, Rolleston, Cope, Huxley; Apoda, Bell, Tenney, Swainson; Peromeles, Dumeril and Bibron. This order comprises but a single family, Cæciliadae, and hence in the present state of knowledge the same characteristics will answer for both order and family. Should subdivisions ever be made it will then be time enough to provide separate descriptions. CÆCILIADÆ. : Body vermiform; limbs wanting; young with internal branchia, and a branchial aperture on each side of the neck; adult with lungs, the left being relatively very small; eyes small, almost concealed, or wanting; skin apparently naked, viscous, with many folds or wrinkles, and containing numerous delicate, horny, rounded, der- mal scales; tongue large, papillose, fixed in the cavity of the jaw, neither forked nor protusible; nostrils open be- hind the palate; heart with two cavities, at least the auri- cle not sufficiently divided to be regarded as double; 122 OPHIOMORPHA. lobes of liver many, in numerous transverse lamellæ; bones of skull soldered together; orbits of eyes covered by maxillaries, and resemble a small hole; maxillary and palatine teeth in two concentric lines; hyoid bone com- posed of three pair of arches; ossiculum auditum or audi- tory bone a small plate on the fenestra ovalis; os quad- ratum soldered immovably to the cranium; rami of low- er jaw united by symphysis at the chin; occipital con- dyles two; vertebræ amphicœlous. From the above characters it will be seen that the Cæilians are like the Ophidians in, (1) the form of the body; (2) the absence of limbs; (3) the presence of der- mal scales; (4) the relative size of the lungs; and (5) the teeth, which are long, tapering, and directed backwards. They were in fact classed with the serpents in the writ- ings of Goldfuss, Voight, Cuvier, and the older naturalists, and it was only when Muller discovered the pores at the side of the neck of a young E. glutinosa, with branchial fringes within upon the corners of the hyoid, that they were assigned their true position. The characters serv- ing to distinguish them from the Ophidia are, (1) the presence of two occipital condyles; (2) the amphicœlous vertebræ and their union with each other; (3) the dove- tailing of the tympanic bone into the cranium, and solidi- fication of the whole; (4) the symphysis of the lower maxillary and size of the mouth resulting from the man- ner of its articulation; (5) the cloacal aperture round in- stead of transverse; (6) the presence of internal branchiæ in the young. They also somewhat resemble sea-eels among fishes in, (1) the amphicœlous vertebræ and cavities filled with OPHIOMORPHA. 123 semigelatinous remains of the notochord; (2) the form and structure of the skeleton; (3) the mode of implanting teeth; and (4) the articulation of the jaw and cranium. But they are unlike fishes in, (1) the presence of two oc- cipital condyles; (2) the nostrils opening into the mouth; (3) the presence of lungs; (4) the absence of branchiæ in the adult. Again they are very similar to worms, (1) in respect to their viscid, damp, slimy skin; (2) their forms and cu- ticular folds; (3) their habit of boring into the ground in damp places; (4) their food, vegetable matter, earth and sand having been found in their intestines, but the pres- ence of a vertebral column, and a cerebro-spinal nervous system at once forbids their being grouped with this class. Taken as a whole they seem to be possessed of a quin- tuple nature, that is, they are related to the Amphis- bænæ, Ophidia, Pisces; Vermes, and the true Batra- chia. Certainly the discovery of gills places them among the last, though they will always be interesting from their resemblance to the others. They furnish but another illustration of how close is the union between the cold-blooded vertebrates, and how artificial is the best classification of the naturalist. In endeavoring to subdivide this family we find four genera commonly recognized. The following table, tak- en with slight changes from the British Museum Cata- logue, will enable any one readily to refer an individual to its appropriate place: 11 124 OPHIOMORPHA. Muzzle pitted. (a) Muzzle not pitted.. a. Pit before each eye. (b) a. Pit under each nostril.. b. Rings on the body broad. b. Rings narrow ...RHINATREMA. (4) …….CÆCILIA. (1) ....SIPHONOPS. (2) .EPICRIUM. (3) The matter of a pitted muzzle seems to the writer in- sufficient to constitute generic distinctions, and were he to follow his own inclinations but one genus would be given under this family. It looks very much as if nature had only made one, and man had devised the other three. But since these terms have come into general use, and as our knowledge of these animals is very incomplete; and since it is a source of great confusion to vary from estab- lished names, it has been deemed best to retain the four genera. 1. Cæcilia, Wagler. Fossa two, one below each nostril; eyes distinct or in- distinct; body and head cylindrical; muzzle projecting; tongue velvety or cellular, and usually supplied with two narial valvules. Cæcilia. LUMBRICOIDEA. TENTACULATA. ROSTRATA. COMPRESSICAUDA. OXYURA. OCHROCEPHALA PACHYNEMA. IBYARA. GELATINOSA. KAUPII. Length. Diameter. Color. Annuli. Black. Fifteen. Large, Round. Two feet. inch. Two feet. Thirteen inches. Nineteen inches. One foot. 1294 inches. 4-5 inch. ½ inch. 4-5 inch. Black, marbled with white below. Brownish Olive. Brownish Olive. 3-5 inch. Olive. 4 inch. Yellowish Plumbeous 130 odd, Part incom- plete. 125 complete. Muzzle. Eyes. Invisible. Plicated, with Tongue. Valvules. Posterior Terminus of Round. Body. Habitat. Surinam. Large, Round. Invisible. Narrow, Obtuse. Invisible. 140 below, incomplete 180, only last 30 com- above. Large, Round. plete. Slightly Narrowed. Visible. Visible. 200 complete. Depressed, Narrow, Acute. Invisible. 170-180. 25 Distinct. One foot. One inch. Black, with white ridges. One foot. 3-5 inch. Brownish. |300-400, Obtuse. $ Visible in adult. Narial Plicated, with Narial Plicated, with Narial Valvules. Round. Surinam. Plane. Plane. Valvules. With Narial Valvules Round. Compressed. Pointed. Depressed, Obtuse. Isles Seychelles and Guiana. Guiana. Malabar. Panama. Ecuador. |Brazil and Guiana. Angostura. OPHIOMORPHA. 125 Cæcilia lumbricoidea, Daudin. (12) WORM-LIKE CÆCILIA. Synonyms, Cæcilia, gracilis, Hemprich, Shaw; Cæcil- ia lumbricoidea of most authors. Length more than seventy times the greatest diameter; annuli few at each end, others seen only with the micro- scope; muzzle large and rounded; eyes invisible; tongue with plicæ and large, oval, narial valvules; posterior ex- tremity of the body cylindrical, and rounded; color black- ish or brownish, sometimes with an olive taint; max- illary teeth about twenty in each jaw, palatine or second row sixteen above and ten to twelve below, all the teeth acute, conical, turned backwards, and somewhat scatter- ed; posterior half of the body smaller than the anterior, and with a small swelling near the extremity; scales large, thin, cycloid, imbricated, and verticillate. Habitat Surinam. Cæcilia tentaculata, Lacepede. (12) ! Synonym, Cæcilia albiventris, Daudin, Merrem, Gray, de Saint-Vincent, Cuvier, Griffith. 126 OPHIOMORPHA. Length about thirty times its greatest diameter; an- nuli 130 odd, extending the whole length of the body, but (every other one not forming a complete circle ?); muz- zle large and rounded; tongue with plice and two large, oval, narial valvules; posterior part of the body cylin- drical with rounded end; color blackish, belly marbled with white; teeth, first row in each jaw about twenty, second row from ten to a dozen below, and sixteen above, all the teeth conical, acute, and turned backwards; scales large, quadrilateral with rounded angles, and imbri- cated. Cæcilia rostrata, Cuvier. SHARP-NOSED CÆCILIA. Length twenty to twenty-one times its greatest diam- eter; annuli 125, forming complete circles; eyes and tongue as in C. lubricoidea; muzzle narrow, with end obtuse or slightly pointed; posterior part of the body cy- lindrical, with extremity rounded; color brownish olive throughout; scales oval and smaller than in C. tentacu- lata; narial fossæ very small. Habitat South America and the Isles Seychelles. The occurrence of this animal in regions thus separated and possessing such distinct faunas, is certainly remark- able and well worthy of note. It opens up an interest- ing question in regard to geographical distribution, and furnishes an excellent opportunity to theorize on how they came there. : រ OPHIOMORPHA. 127 Cæcilia compressicauda, Dumeril and Bibron. Length twenty-five times its greatest diameter; annuli 140 below, incomplete above; muzzle large, rounded at the end; tongue plane; posterior part of the body consid- erably compressed; color brownish olive throughout; eyes visible. Habitat Cayenne. This species has been made exceedingly interesting by the researches of Peters. Prior to this M. Leprieur had discovered accidentally that some of the Cæciliæ were viviparous or ovoviparous, but the species upon which his observations were made was not determined. Peters (15, b) with a female Cæcilia compressicauda which had been captured near Cayenne floating upon the top of the water, determined over again this interest- ing fact. Soon after its capture this animal gave birth to a young one, and upon dissection five others were found in a dilatation of its oviduct. The young and the fœtuses were from 5.35 to 5.79 inches long, and what is very remarkable, were without either anal fringes or branchial apertures, both of which åre present in the young Epicrium glutinosum. In this case however, neither internal branchiæ nor branchial slits could be discovered. Rather there were present in the nuchal region two vesicles 2.17 inches long, of irreg- ular form, and with their narrow, transverse bases in connection. These receive a vascular trunk, and the B 128 OPHIOMORPHA. same ramifies over their surfaces, and in the scars left by the vesicles in detaching themselves there remains a small hole on each side of the neck, and to this as an opening runs a vessel or pair of vessels in communica- tion with the Aortic arch. These vesicles are evidently external branchiæ, and their discovery shows still more closely the relation of these animals to the Amphibians. They recall the ex- ternal branchiæ discovered by Wienland in the larval Notodelphys ovifera, and show certain interesting rela- tions between the young Cæcilians and some of the tree toads. The researches of Peters upon this animal are exceed- ingly interesting, because they apparently indicate that this order hitherto so imperfectly understood begin their existence as external, then change to internal gill-breath- ers, and finally replace these by true lungs. Cæcilia oxyura, Dumeril and Bibron. Length about twenty times its greatest diameter; an- nuli exceeding 180, part incomplete; muzzle slightly narrowed; tongue without narial valvules; posterior ex- tremity of the body cylindrical, with pointed terminus; eyes visible; scales small, transparent, striated concen- trically, imbricated and verticillate; color olive, borders. of annuli yellow. Habitat Malabar. ! } OPHIOMORPHA. 129 Cæcilia ochrocephala. Length about fifty times its greatest diameter; annu- li 200, equidistant, complete, and with intermediate ones on the back, beginning one inch and terminating three lines from the posterior extremity; eyes invisible; muż- zle narrowed somewhat, decurved, extending at an acute angle beyond the mouth; color plumbeous yellow, throat and head ochreous, annuli brownish black; posterior ex- tremity of the body depressed and obtuse. Habitat Panama. Cæcilia pachynema, Gunther. Annuli 170 to 180; eyes visible in small, invisible in large animals; tongue with two narial valvules; maxil- .lary teeth eight on each side above and six below; pala- tines five on each side, all the teeth conical and directed backwards; color brownish, sometimes with lateral blue spots. Habitat Ecuador. ! 130 OPHIOMORPHA. Cæcilia Ibyara, Margrave. Length about twelve times its greatest diameter; an- nuli 25, distinct; muzzle blunt; color black, white ridges. Daubenton (21) makes this synonymous with C. ten- taculata and C. rugis, Linnæus, but that is evidently an error. Bonnaterre (20, p. 73, pl. 34) figures and de- scribes a species under this name, but he has evidently confounded it with C. tentaculata and an Amphisbæna. Dumeril and Bibron (12) also express doubt as to wheth- er it is not properly one of the last named genus. Not having a specimen I am unable to determine its true re- lation, but am inclined to think the species well founded, and for this reason have inserted it here. The animal has been found living three feet under ground in wet places. Habitat Brazil and Guiana. Cæcilia gelatinosa. Length twenty times its greatest diameter; annuli be- tween 300 and 400; color brownish. This may be a variety of E. glutinosum. OPHIOMORPHA. 131 Cæcllia Kaupii, Berthold. This species is described in the Gottingen Nachrich- ten, (1859, p. 161) but being without either the work or a specimen, the writer is unable to give a description here. Habitat Angostura. Cæcilia maculata, Catesby. This is no Cæcilia at all, but is the Anguis ventralis, Linnæus. CECILIA SQUALOSTOMATA is unknown to the writer. Habitat Africa. 2. Siphonops, Wagler. Fossa two, situated in front of and below the eyes; body and head cylindrical; muzzle short; tongue plicated and : Ï32 OPHIOMORPHA. without narial valvules; eyes visible; annuli broad; ten- tacles on the fossa wanting. Siphonops annulatus, Wagler. (12) Synonyms, Cæcilia interrupta, Cuvier; Cæcilia annu- lata of many authors. Length 23 inches; diameter.7 of an inch; annuli 86 to 100, usually forming complete circles; muzzle large with rounded end; teeth conical and directed backwards; posterior extremity of the body rounded; scales conceal- ed if not altogether wanting; color blackish, olive, bluish, or ash colored, annuli with white circles. Spix estimates upwards of 200 bands or folds of the skin on the body of this animal, but probably none can be found with that number. The S. annulatus lives in marshes several feet under ground, and is specifically the same as C. interrupta, Cuvier. In the latter, part of the annuli do not form complete circles. Siphonops Mexicanus, Dumeril and Bibron. Length 13½ inches; diameter 4-5 of an inch; muzzle slightly narrowed; teeth conical, curved backward; an- OPHIOMORPHA. 133 nuli about 160, of which the first 50 and last 20 only form complete circles; posterior extremity of the body round- ed at the end; scales small, numerous, and imbricated; color yellowish below and grayish above. Habitat Mexico. Siphonops syntremus, Cope. Muzzle depressed, projecting, rounded in front; man- dibular teeth five on each side and large; annuli about 130, complete, and with intermediate, lateral segments on the posterior third of the body; annuli ventrally in- terrupted in front and the segments becoming complete circles behind; posterior extremity of the body with a depressed, pointed terminus; body as a whole slender, cylindrical; eyes very small, barely visible; postgular and gular folds present; nostrils open internally at some distance behind the palatine arch; color dark, plumbeous with yellow lines upon the annuli; length one foot; di- ameter 4 of an inch; "Differs from the four species hith- erto known by the close approximation of the narial and tentacular openings; the latter lie a little behind the form- er, and are slightly larger. *** It resembles C. ochrocephala, from which it is distinguished by position of the foramen and inner nares, also by color and char- acter of annuli." Cope, (24, e.) Habitat Belize. SIPHONOPS BRASILIENSIS, Lutk, and SIPHONOPS INDIS- TINCTUS, Lutk, are both unknown to the writer. Habitat Brazil. 134 OPHIOMORPHA. } ز 3. Epicrium, Wagler. Ichthyophis, Fitzinger. Fossa two below and slightly in front of the eyes; body subfusiform; head depressed; tongue with a velvety sur-. face, and without narial valvules; eyes visible; annuli numerous, complete. }. : t Epicrium glutinosum, Wagler. (20) : ; ! } JAVANESE CÆCILIA. Synonyms, Epicrium Hasseltii, Wagler; Ichthyophis, Hasseltii, Fitzinger; Cæcilia hypocyanea, Hasselt; Cæ cilia viscosa, Latreille; Le Serpent Visquex, Daubenton; Le Visquex, Lacepede and Bonnaterre; Cæcilia glutin- osa of many authors. Length 13 inches; diameter ½ inch; annuli 350, being transverse striæ rather than plicæ, and united beneath at an acute angle; muzzle obtuse; scales many, thin, and articulated above; color blackish to grayish, with a yel- lowish band on each side extending the length of the body. Habitat Ceylon, Malacca, and Java. Daudin says America, but this is probably a mistake. OPHIOMORPHA. 135 Thanks to the researches of Muller, Hasselt, and Pe- ters, we know something of the development of breath- ing organs in this species. It seems that in a specimen 4½ inches long Muller first discovered the branchial pores, and later, in a specimen 5 lines in length, saw the same more precisely formed. Also Hasselt in one from Java, saw these apertures, and located them in the centre of the yellowish stripe. Peters, (15, a) on the contrary, locates them in the upper border of the stripe, and deter- mines that the forward gill slits are not one-half smaller, as in Muller's example, but the same size as the hinder. He also shows that distinct gills are not present, but pro- jections of the skin beside and between the gill openings are toothed and fringed so as to have allowed the pres- ence of gills. Probably, therefore, they were present at some stage in the animal's development. Also the eyes in the young are much more distinct than in the adult, and directly in front of each is an angular depression larger than the fossa below and in advance of the eye. Epicrium monochrous, Blecker. This species is described in Natuurk, Tijdschr. Med. Indie xiv. p. 188. Habitat Borneo. 136 OPHIOMORPHA. 2 Rhinatrema, Dumeril and Bibron. Fossa wanting; body subfusiform; head depressed; tongue velvety, without narial valvules; eyes visible; annuli numerous, complete. Rhinatrema bivittatum, (12, 23) THE BANDED CECILIA. Synonym, Cæcilia bivittata, of many authors. Length 7.8 inches; diameter .31 inches; annuli 340, complete; muzzle obtuse; posterior extremity of body pointed; teeth conical, quite narrow, and curved back- wards; scales numerous, transparent, circular and retic- ulated; color black, with a yellow band on each side of the body, yellow anal ring, and with yellow and brown on the lower jaw. Habitat Cayenne. LIST OF AUTHORS. 137 LIST OF AUTHORS Consulted in the Preparation of the Present Work. 1. Nicholson, Henry Alleyne, Manual of Zoology. 2. Weiz, Rev. Samuel, List of Vertebrates observed at Okak, Labrador, with Annotations by A. S. Pack- ard. Proc. Boston Soc. Nat. Hist. vol. 10, p. 272. 3. Rolleston, George, Forms of Animal Life. 4. Girard, Charles, On a New Genus and Species of Urodela, from the collections of the U. S. Expl. Ex- ped. under command of Chas Wilkes, U. S. N. Proc. Acad. Nat. Sci. Phil. 1856, p. 140. 5. Amphibien in Bronn's Klassen, und Ordnung des Their-Reichs. 6. Mivart, St. George, The Common Frog. 7. Voigt. Lehrbuch der Zoologie. 8. Gervais, M. Paul. a. Sur la Cavitie Orbitaire de la Cecilie. Ann. des Sci. Nat. 1853, T. xx. p. 315. 138 LIST OF AUTHORS. b. Sur le Glossoliga Poireti et 'l Euproctus Rus- conii. Ann. des Sci. Nat. 1853, T. xx, p. 312. c. Reptiles in Dictionnaire Universel d' His- toire Naturelle. 9. Green, Jacob, Papers in Jour. Acad. Nat. Sci. Phil. a. Description of a new Species of Salamander, 1825, p. 116. b. Description of two new Species of Salaman- der, 1830, p. 253. c. Description of several Species of N. Am. Amphibia, accompanied with observations. 1818. p. 348. d. Say, Thomas, Notes on the Above Paper, 1818, p. 405. 10. Huxley, Prof. T. H., Art. Amphibia in Encyclopæ- dia Brittanica. 11. Goldfuss, Handbuch der Zoologie. 12. Dumeril and Bibron, Reptiles in Suite a Buffon. a. Tome viii. b. Tome ix. 13. Baird, Spencer F., Reptiles in Major W. H. Emory's Report on U. S. and Mex. Boundary. 14. De Kay, James E., Reptiles in Nat. Hist. of N. Y. 15. Peters, W., Papers in Monatsberichte der Koenig- lichen Preufs, Akademie der Wissenschaften zu Berlin. LIST OF AUTHORS. 139 a. Eine junge Cæcilia glutinosa mit Kiemen loechern aus Malacca, 1864, p. 303. b. Observations sur le Development du Cæcil- ia compressicauda, 1874, Ann. des Scien Nat. 1874, Art. 13. c. Mittheilungen ueber neue Batrachier, 1863. P. 445. 16. Storer, Dr. D. H. a. Report on Reptiles of Mass. b. Memoranda of Facts observed extending the Geographical range of Certain Reptiles. Proc. Boston Soc. Nat. Hist., vol iv. p. 138. 17. Jordan and Van Vleck, Popular Key to the Birds, Reptiles, Batrachians, and Fishes of the Northern United States. 18. Cuvier; Baron, Animal Kingdom. 19. Holbrook, Dr. J. E., North American Herpetology. 20. Bonnaterre, l' Abbe, Erpetologie in Encyclopedie Methodique. 21. Daubenton, Ophiologie in Encyclopedie Methodique. 22. Cecilia Art. in Cyclopedia of Nat. Hist., conducted by Chas. Knight. 23. Knight, Chas., Pictorial Museum of Animated Na- ture. 140 LIST OF AUTHORS. 24. Cope, Ed. D., Papers in Proc. Acad. Nat. Sciences, Phil. a. An Examination of the Reptilia and Batra- chia obtained by the Orton Expedition to the Upper Amazon, with Notes on other Species, 1868, p. 96. b. On Trachycephalus, Scaphiopus, and other American Batrachia, 1863, p. 43. c. Notes upon some Reptiles of the Old World, 1862, p. 337. d. Third Contribution to the Herpetology of Tropical America, 1865, p. 185. é. Fourth Contribution to the Herpetology of Tropical America, 1866, p. 123. f. Sixth Contribution to the Herpetology of Tropical America, 1868, p. 305. g. Description of Reptiles from Tropical Amer- ica and Asia, 1860, p. 368. h. On some Batrachia and Nematognathi brought from the Upper Amazon by Prof. Orton, 1874, p. 120. i. A Review of the Species of the Plethodonti- dæ and Desmognathidæ, 1869, p. 93. j. On the Reptilia and Batrachia of the Sono- ran Province of the Nearctic Region, 1866, p, 300. k. Partial Catalogue of the Cold Blooded Ver- tebrata of Mich., 1865, p. 78. 7. On the Primary Divisions of the Salaman- dridæ, with Descriptions of two new Spe- cies, 1859, p. 166. LIST OF AUTHORS. 141 m. A Review of the Species of the Amblystom- idæ, 1867, p. 166. n. On Siredon Metamorphoses, etc. Ann, and Mag. Nat. Hist. 1871, vol. vii. p. 246. .. Supplement to Arciferous Anura on the Os- seous Structures of the types of the Urod- ela. Jour. Acad. Nat. Scien. Phil. 1866, vol. vi. p. 97. 25. Segond, M. L. A., Reptiles et Batraciens classes d' apres leurs affinites par Rapport a cinq Types dont les Caracteres sont empruntes aux Parties les moins modifiables du Squelette. Jour. de l'Anatomie et la Physiologie publie par M. Chas. Robin, 1872, p 645. 26. Harlan, Richard, Papers in Jour. Acad. Nat. Scien. Phil. a. Genera of North American Reptilia, and a Synopsis of the Species, 1827, p. 317. b. Description of a new Species of Salamandra, 1825, p. 156. c. Description of two new Species of Salaman- dra, 1825, p. 136. d. Note on Amphiuma means, 1829, p. 147. e. Description of a new Species of Salamandra, 1827, p. 101. f. Dissection of a Batrachian Animal in a living state, 1823, p. 54. 27. Baird and Girard, Papers in Proc. Acad. Nat. Sci- ences, Phil. a. Characteristics of some new Reptiles in the 142 LIST OF AUTHORS. Museum of the Smithsonian Institution, 1852, p. 173. b. Description of New Species of Reptiles col- lected by the U. S. Expl. Exped. under the command of Captain Chas. Wilkes, U. S. N., 1825, p. 174. c. Characteristics of some new Reptiles in the Museum of the Smithsonian Institution, 1852, p. 68. d. List of Reptiles collected in California by Dr. John L. Le Conte, with Description of new Species, 1853, p. 300. 28. Verrill, A. E., Catalogue of the Reptiles and Ba- trachians found in the vicinity of Norway, Oxford Co., Maine. Proc. Boston Soc. Nat. Hist. vol ix. p. 195. 29. Borland, Dr. J. N., List of Reptiles collected in Cal- ifornia by Mr. E. Samuels. Proc. Boston Soc. Nat. Hist. vol. vi. p. 192. 30. Gray, Dr. J. E., Papers in the Annals and Maga- zine of Nat. Hist. London. a. Proposal to separate the family Salamandri- dæ Gray into three Families according to the form of the skull, 1858, vol. ii. p. 292. b. Observations on Dr. Hallowell's Paper on Urodele Batrachians and Trigonophrys, etc., 1858, vol i. p. 353- c. Descriptions of new Salamanders from Chi- na and Siam, 1860, vol. v. p. 151. LIST OF AUTHORS. 143 d. On the eyes of Emydidæ and Batrachia, 1864, vol. xiii. p. 175. 31. Hallowell, Dr. Edward, Papers in Proc. Acad. Nat. Sciences, Phil. a. Notice of a Collection of Reptiles from Kan- sas and Nebraska, presented to the Acad- emy of Natural Sciences by Dr. Ham- mond, U. S. A., 1856, p. 238. b. Description of several new North American Reptiles, 1857, p. 215. c, Description of several Species of Urodela, with remarks on the Geographical Distri- bution of the Caducibranchiate Division of these animals, and their Classification, 1856, p. 6. d. Notes on the Reptiles in the Collection of the Academy of Natural Sciences of Phila- delphia, 1856, p. 221. e. Description of two new species of Urodeles from Georgia, 1856, p. 130. f. Description of a new Species of Salamander from Upper California, 1848, p. 126. g. Report upon the Reptilia of the North Pa- cific Exploring Expedition, under com- mand of Captain John Rogers, U. S. N., Edited by E. D. Cope, 1860. h. On some new Reptiles from California, 1853, p. 238. i. Remarks on the Urodela about Philadelphia, 1856, p. 101. j. On the Caducibranchiate Urodele Batra- 144 LIST OF AUTHORS. chians. Jour. Acad. Nat. Sciences, Phil. 1858, vol. iii. p. 238. 32. Dumeril, M. Aug. a. Nonvelles Observations sur des Axolotls Batraciens urodeles de Mexico (Siredon Mexicanus vel Humboldtii) nes dans la Menagerie des Reptiles au Museum d' Histoire naturelle et qui y subissent des Metamorphoses, Comptes Rendus, 1865, T. lxi. p. 775. b. Creation d'une Race blanche d' Axolotls a la Menagerie des Reptiles du Museum d' Histoire naturelle et Remarques sur la Transformation de ces Batraciens. ptes Rendus, 1870, T. lxx. p. 782. Com- c. Metamorphoses des Batraciens urodeles a Branchies exterieures du Mexique dits Axolotls. Ann. des Sciences, Nat. 1867, p. 229. d. Experiences faites a la Menagerie des Rep- tiles du Museum d' Histoire naturelle, sur des Batraciens urodeles a branchies ex- terieures du Mexique dits Axolotls, et de- montrant que la vie aquatique se continue sans Trouble apparent apres l' Ablation des Houppes branchiales. Comptes Ren- dus, 1867, T. lxv. p. 242. d2. Experiments on the Axolotl. Ann. and Mag. Nat. Hist. London, 1867, vol. xx. P. 446. LIST OF AUTHORS. 145 33. Plateau M. Felix. a. Sur la vision des Poissons et des Amphi- bies. Ann. des Sciences Nat. 1867, p. 15. a.2 On the vision of Fishes and Amphibia. Ann. and Mag. Nat. Hist. 1866, vol. xix. p. 469. 34. Robin, M. Chas. a. Observations sur la Fecundation des Ba- traciens urodeles. Comptes Rendus, 1874, p. 125-4. a2. Observations on the Fecundation of the Batrachian Urodela. Ann. and Mag. Nat. Hist, London, 1874, vol. xiv, p. 96. 35. Philipeaux, M. a. Etudes experimentales sur la Greffe Ani- male et sur Regeneration de la Rate chez les Mammifers et des Membres chez les Salamamanders aquatiques. Ann. des Sci- ences Nat. 1867, p. 5. b. Sur la Regeneration des Membres chez l' Axolotl (Siren pisciformis). Ann. des Scien. Nat. 1867, p. 228. c. Expermiments demonstrating that the mem- bers of the Newt (Triton cristatus) are on- ly regenerated when their basilar portion at least is left in its place. Ann. and Mag. Nat. Hist. 1867, vol. xix, p. 72. 36. Hogg, John, Notes on some Amphibians. Ann. and Mag. Nat. Hist. London, 1865, vol. xvi, p. 120. 146 LIST OF AUTHORS. 37. Marsh, Prof. O. C. a. On the Metamorphoses of Siredon into Am- blystoma. Proc. Boston Soc. Nat. Hist. vol. xii, p. 87. a2. Siredon a larval Salamander. American Naturalist, vol. ii, p. 493. 38. Haldeman, Letter in Proc. Acad. Nat. Scien. Phil. 1874, p. 315. 39. Duges, M. A. a. Note sur une nouvelle Espece d' Axolotl (le Siredon Dumerilii.) Ann. des Scien. Nat. 1872, Art. 17. b. Recherches sur l' Osteologie et la Myologie des Batraciens a leurs differens Ages. 40. Gibbes, Lewis R., Papers in Boston Jour. Nat. Hist. a. Description of a new species of Salamander, vol. v, p. 89. b. Description with figure of Menobranchus punctatus, vol. vi, p. 369. 41. Wood, Wm. W. Description of a new Species of Salamander. Jour. Acad. Nat. Scien. Phil. 1825, p. 306. 42. De l'Isle, M. Arthur, Papers in Ann. Des Scien. Nat. a. Notice Zoologique sur un nouveau Batracien Urodele de France, 1862, p. 363. b. L'Hybridation chez les Amphibies, 1873, Art. 3. LIST OF AUTHORS. 147 43. Barnes, D. H., An arrangement of the Genera of Batrachian Animals, with a Description of the more remarkable Species. Am. Jour. of Science, vol. xi, 1826, p. 268. 44. Le Conte, Capt. John, Papers in the Annals of the Lyceum of Natural History of New York. a. Description of a new Species of Siren, 1826, p. 133. b. Description of a new Species of Siren with some Observations on animals of a similar Nature, 1823, p. 52. 45. Configliachi and Dr. Rusconi, Papers in Edin. Phil. Jour. a. Observation on Natural History and Struc- ture of the Aquatic Salamander (Sala- mandra platycauda), and on Development of Larva from the egg to the perfect Animal. b. Observations on the Natural History and Structure of Proteus anguinus, vol. iv, p. 398, vol. v, p. 84. 46. Ehrenberg, Ueber, die mit dem Proteus anguinus zusammenlebenden mikroskopischen Theirfor- men den Bassins der Magdalenengrotte in Krain. Monatsberichte Acad. Berlin, 1859, p. 758, and 1862, p. 579. 47.. Kneeland, Dr. Samuel, Papers in Proc. Bost. Soc. Nat. Hist. 148 LIST OF AUTHORS. 7 a. On Siredon hvemalis, vol. vi, p. 152. b. Habits of Menobranchus, vol. vi, p. 371. c. Breathing of Menobranchus, vol. vi, p. 429. 48. Smith, J. Augustine, Account of the Dissection of the Proteus of the Lakes (Menobranchus) with re- marks on the Siren intermedia. Ann. Lyceum Nat. Hist. New York, vol ii, p. 259. 49. Baird, Spencer F., Revision of the North American Tailed Batrachia, with Descriptions of new Genera and Species. Jour. Acad. Nat. Sciences, Phil. vol. i, p. 281. 50. Burnett, Observations upon the Reptilia found about Aiken, Georgia. Proc. Boston Soc. Nat. Hist. vol. iv, p. 146. 51. Blanchard, M. Emilie, Note sur une nouvelle Sala- mandra gigantesque (Sieboldia Davidiana) de le Chi- ne occidentale. Comptes Rendus, 1871, T. 73, p. 79. 52. Allen, J. A., Papers in Proc. Boston Soc. Nat. Hist. a. Catalogue of the Reptiles and Batrachians found in the vicinity of Springfield, Mass., vol. xii, p. 198. b. Notes on Massachusetts Reptiles and Ba- trachians, vol. xii, p. 263. 53. Gunther, A., On the Geographical Distribution of Reptiles. Ann. and Mag. Nat. Hist. 1858, vol iii, p. 311. LIST OF AUTHORS. 149 54. Homan, John, Regeneration of Limbs in Triton. Proc. Boston Soc. Nat. Hist. vol x, p. 174. 55. Wyman, On the Structure of the Heart and Physiol- ogy of Respiration in the Batrachians. Proc. Bost. Soc. Nat. Hist. vol v, p. 51. 56. Putnam, F. W., Remarks on Plethodon erythrono- tus and its eggs. Proc. Boston Soc. Nat. Hist. vol. ix, p. 173. 57. Sager, Abram, On American Amphibia. American Jour. Sciences and Arts, 1839, p. 320. 58. Kennicott, Robert, Animals seen at Fort William, North Shore Lake Superior. Trans. Chicago Acad. vol. i, p. 144. 59. Hoy, P. R., On the Amblystoma luridum. Smithso- nian Reports, 1854, p. 295. 60. Mann, Rev. Chas., On the History of an Aquatic Salamander Amblystoma opacum, Smithsonian Re- ports, 1854, p, 294. 61. Vaillant, Dr. Leon, Histoire Anatomique de Sirene lacertine. Ann. des scien. Nat. 4me ser. Tome xix, p. 295. 150 LIST OF AUTHORS. Alphabetical List of Authors, with the Numbers Referring to their Works. 54 59 IO 17 58 47 22, 23 44 37 6 I • 35 33 Allen... 52 Homan • • Baird.. 13, 49 Hoy • Baird and Girard.... 27 Huxley Barnes. 43 Jordan Bibron... 12 Kennicott. Blanchard. 51 Bonnaterre.. 20 Borland.. 29 Kneeland... Knight. Le Conte.. Burnett. 50 Marsh.. Configliachi.. Mivart 45 Cope.. 24 Cuvier.. 18 Nicholson .. Philipeaux Plateau Peters Daubenton. De Kay. De l'Isle.. Duges. 21 • 15 15 42 Putnam 56 39 Robin 34 Dumeril .. · 32, 12 Rolleston. 3 Ehrenberg Gervais.. Gibbes. Girard. 4, 27 Goldfuss II Gray. 30 Green. 9 46 Rusconi. 8 Sager.. 40 Segond. Smith.. Storer Vaillant Van Vleck. 45 57 ... 25 48 16 61 • • Gunther.. 53 Verrill Haldeman . 38 Voigt.. 17 28 7 Hallowell.. 31 Weiz. Harlan... 26 Wood... Hogg. 36 Wyman • 2 41 55 Holbrook... 19 INDEX. 命 ​In the following Index the names printed in small cap- itals are retained; the Roman letters denote Synonyms. Abranchus. prosperpine Alleghanensis 22 PUNCTATUM AMBLYSTOMA 29 salmoneum ATERRIMUM 51 BICOLOR 46 Californiense 42 CINGULATUM - 52 CONSPERSUM 47 episcopus erythronotum fasciatum fuscum - - JEFFERSONIANUM 39 94 laterale 40 luridum 39 MACRODACTYLUM - 43 maculatum 43 MAVORTIUM 42 AMPHIUMIDA MEXICANUM MICROSTOMUM nebulosum nigrum - 55 44 42 ANAIDES FERREUS LUGUBRIS - 70 ANDRIAS OBSCURUM 48 ANOURA OPACUM PAROTICUM PLATINENUM 37 Apoda - 50 - · 50 ATOLOCALT. Atretoderes subviolaceum TALPOIDEUM TENEBROSUM TEXANUM TIGRINUM TRISRUPTUM XIPHIAS 37 Amblystomidæ 40 AMPHIBIA 40 Amphipneusta AMPHIUMA didactylum MEANS TRIDACTYLUM 1 42 36 92 36 41 45 - 46 39 48 49 25 9 IO 20 20 20 - 21 19 60 1 61 - 61 24 IO 121 54 24 152 INDEX. AXOLOTL AXOLOTES GUTTATUS MACULATUS BATRACHOSEPS ATTENUATUS NIGRIVENTRIS PACIFICUS QUADRIDIGITATUS Bolitoglossa bilineata - 9, 54 Calotriton I - 54 55 78 55, 56 - punctulatus Camarataxis maculata Caudata 79 Chioglossa 79 Chrysodonta 80 larvæformis CRYPTOBRANCHUS JAPONICUS salamandroides 117 - 117 42 IO - IIO 20 20 - 81 23 81 24 83 22 Mexicana rubra BRADYBATES Poireti VENTRICOSUS CADUCIBRACHIATA 75,90 Cylindrosoma 81 86 auriculatum 69 102 glutinosum 66 102 guttolineatum 85 102 longicaudatum 84 18 Cynops 103 CÆCILIA albiventris 124 Chinensis 107 · 125 ANNULATA bivittata - COMPRESSICAUDA GELATINOSA glutinosa gracilis hypocyanea IBYARA interrupta - KAUPII - LUMBRICOIDEA MACULATA OCHROCEPHALA OXYURA PACHYNEMA ROSTRATA SQUALOSTOMATA VISCOSA - 132 · pyrrhogaster subcristatus 136 DACTYLONYX 127 DEROTREMATA 130 Desmiostoma 134 125 Desmodactylus 105 - тоб - 57 · 19 42 maculatum 42 58 134 melanosticus - - 59 130 scutatus - - 132 Desmognathida < 131 Desmognathus auriculata fusca 125 131 129 niger 128 - ochrophæus 129 Diemyctylus · 126 Shg༄ 59 25 62 - 69 · 70 71 CECILIADAÆ 103 lævis тоб - 131 miniatus 104 134 pyrrhogaster 106 121 torosus 105 ! INDEX. 153 viridescens Ellipsoglossa navia nebulosa Ensatina 104 Hemisalamandra. 95 cristata ୫୫୫.୪ marmorata 96 Hemitriton. IIO I12 alpestris 113 - -67 asper 117 134 punctulatus 117 134 Heredia 67 134 Oregonensis 67 - - - 135 Heterotriton - - 29 - 117 Hynobiida 117 HYNOBIUS NÆVIUS 25 95 96 NEBULOSUS - 96 Eschscholtzii EPICRIUM GLUTINOSUM Hasseltii MONOCHROUS PLATYCEPHALUS EUPROCTUS POIRETI Rusconii } 118 117, 118 Eurycea macronata 22 22 GEOTRITON carrarae 72 ADSPERSUS ALTAMAZONICUS - 76 77 Laurentii CARBONARIUS FUSCUS Genei MORIO RUFESCENS Glossoliga Poireti Schreibersii xanthostichus 76 Ichtyodes 118 Ichthyophis Hasseltii 118 24 Immutabilia 75 pisciformis 74 Hypocthon. Freyeri Haidingeri - 16 - 16 16 - 16 - 55 16 74 74 Gradientia Gymnophiona 16 II ·134 134 25 121 Lacerta. Gyrinophilus 81 aquatica IIO porphyriticus 92 lacustris Gyrinus. IIO maculata edulis 36 55 palustris Mexicanus IIO, 118 HEMIDACTYLIUM Pacificum SCUTATUM 55 58 1000 porosa IIO 80 punctata salamandra 36 - 59 subviolacea 99 36 154 INDEX. + Lophinus. palmatus 115 punctatus 113 Lusus. aquarum 55 Manculus 81 quadridigitatus 81 Mecodonta 25 Megalobatrachus Sieboldii Megapterna montana MENOBRANCHUS LATERALIS 23 24 - I17 117 • 17 Lechriodonta 25 striata 96 Lissotriton tæniata II2 alpestris palmatus palmipes punctatus 113 tridactylus 115 vittatus IOO 114 · 114 II2 Murænopsis Mycetoglossa: ruber subfuscus Myctodera 20 86 86 88888 86 - 24 17 2000 нны - 18 luteus maculatus maculosus Neurergus crocatus NOTOPHTHALMUS CHINENSIS 17 17, 18 - 17 - IIO Necturus fuscus - IIO 103 107 LÆVIS 106 - 17 maculatus 18 miniatus 104 punctatus 18 PYRRHOGASTER тоб MENOPOMA TOROSUS 22 105 ALLEGHANENSIS VIRIDESCENS 22 104 fusca 22 Oedipina. MENOPOMIDA 21 uniformis 94 Molge 95 Oedipus 72, 73 alpestris 113 cinerea II2 gigantea 22 nvia 96 palmata 115 palustris IIO platycephalus 117 adspersus altamazonicus carbonarius morio platydactylus rufescens Salvinii - 76 - punctata - II2 Ommatotriton pyrrhogaster 106 vittatus 77 74, 75 74 75, 90 76 - 75 114 114 INDEX. 155 ONYCHODACTYLUS - Japonicus SCHLEGELI Ophiobatrachus lineolus vermicularis OPHIOMORPHA Pectoglossa PERENNIBRANCHIATA Peromeles - Phanerobranches 57 PROTEIDA 58 Proteides 58 PROTEUS ANGUINUS 14 IO 9, 14 16, 17 81 94 carrarae 94 Freyeri - 121 Haidingeri 72 IO 121 IO Phanerobranchus 17 cepedii 18 Phatnomatorhina 62 PISCIS. ludricus Plagiodon PLETHODON cinereum CROCEATER - Laurenti maculatus neo Cæsariensis Schreibersii tetradactyle xanthostichus zoisii Protonopsida 55 Protonopsis. horrida 590 +35 Pseudobranchus. intermedius Pseudophydiens 15 16 16 16 · . 18 86 - 15 17 15 16 21 - 22 13 68 striatus 13 ensatus 67 II ERYTHRONOTUS 64 Pseudo-Salamandra 95 FUSCUS 69 navia 96 GLUTINOSUS 66 Pseudo-Sauriens 24 granulatum 66 Pseudotriton 81 INTERMEDIUS 68 flavissimus 86 NIGER 71 marginatus 92 OCHROPHÆUS 71 montanus 86 OREGONENSIS PERSIMILIS - 72 variolosum Plethodontidæ PLEURODELES exasperatus WATLII Pleurodelidæ 66 རེཙུན་ 67 ruber 86 PSEUDOTRITON. salmoneus 25 stricticeps - IOI subfuscus ΙΟΙ Pyronicia. ΙΟΙ 26 marmorata punctata - - 86 112 113 888888 92 86 156 INDEX. RHINATREMA BIVITTATA - - 136 horrida 136 ingens SALAMANDRA 97 abdominale 114 agilis 64 Alleghanensis 23 aquatica IIO ATRA 99 longicauda lugubris attenuata 79 lurida auriculata 69 maculata Batracon IIO MACULOSA Beecheyi 119 marbree bilineata 83 maxima cinerea 64 cirrigera coccinea CORSICA 83 intermixta Japonica Jeffersoniana laticauda melanostica - millepunctata - - - - - 23 39 69 58 · 40 IIO 84 61 39 86,97 97 II2 23, 24 59 104 104 moncherina 98 cretee IIO cristata IIO navia nebulosa nera cylindracea 66 nigra dorsalis 104 OCELLATUS elegans II2 opaca elongata 66 erythronota exigua fasciata 64 114 37 palmata palmipede picta platycauda - flavissima 83 platydactyla fusca 59, 74, 86 platyura Genei 74 pleurodeles gigantea 23 porphyritica - 98 96 96 99 70, 99 - - 119 37 114 114 69 IIO 75 IIO ΙΟΙ 91 glutinosa 66 pruinata IIO granulata 40 punctata Gravenhorstii GREENI guttata guttolineata Haldemani 37 punctatissima - 119 90 85 - 69 81 86 rubriventris 86, 113 quadramatulata quadridigitata rubra · 36, 112 104 69 INDEX. 157 . salmonea 91 SYNTREMUS 133 Savii 74 SIREDON 54 scutata 59 DUMERILII 56 similis 119 HARLANII 56 sinciput-albida 119 Humboldtii stellio 55 104 hyemalis 18 1000 subcristata 106 lichenoides 42 subfusca 86 maculatus 56 subviolacea 36 Mexicanus 54 suisse 114 SIREN 12 symmetrica 104 intermedia 12 tæniata II2 LACERTINA 12 talpoidea 41 maculosa 18 tereticauda 119 operculata 12, 86 terrestris 97 pisciformis 55 Texana 46 STRIATA 13 tigrina 39 Sirenidex tridactyla IOO unguiculata variolata venenosa vulgaris SALAMANDRIDA Salamandridæ SALAMANDRINA PERSPICILLATA Saurocercus longicauda Seiranota - - - 97 - 24 25 100 IOO - 84 58 66 SPELERPES adspersus BELLII 36 condylura perspicillata Sieboldia Davidiana maxima SIPHONOPS ANNULATUS MEXICANUS - 131 II 81 76 BILINEATUS 83 CEPHALICUS 89 CHIROPTERUS 88 cirrigera 83 erythronotus 64 GUTTOLINEATUS 85 Haldemani 69 84 LEPROSUS 89 100 LINEOLUS 100 100 23 LONGICAUDATUS lucifuga MARGINATUS - 94 84 84 92 - - 24 MULTIPLICATUS 91 24 orculus 88 PENNATULUS 93 132 PORPHYRITICUS 91 · 132 RUBER 86 158 INDEX. salmoneus 92 minor - VERMICULARIS 94 nebulosus Stereochilus SI niger marginatus 92 PALMATUS Taricha 103 Parisinus 115 - 118 40, 70 114 II2 lævis 106 lugubris 61 torosus 105. Thorius 81 PUNCTATUS Poireti porphyriticus punctatissimus 44, 66 104 II2 118 pennatulus TRACHYSTOMA Trematoderes Tritomegas TRITON ALPESTRIS Bibroni BLASII 93 punctulatus - 118 - II PYRENÆUS 25 repandus 23 rugosus 108 subcristatus 113 symmetricus - IIO, 118 tæniata - 115 - 118 106, III 104 II2 118 116 tigrinus 39 carnifex cinereus III, 112 118 torosus 105 VITTATUS 114 cristatus IIO Wurfibanii 113 dorsalis 104 Triturus. ensatus 119 fuscus 69 ermanni 105 HYPOXANTHUS 120 exiguus 115 LUTESCENS 120 Gesneri II2 NEBULOSUS 120 glacialis · 117 viridescens 104 granulosus 105 URODELA - ΙΟ lævis 113 Visqeux 134 lateralis 17 Xiphonura 29 MARMORATUS II2 Jeffersoniana 40 NOV 28 1919 1 UNIVERSITY OF MICHIGAN 3 9015 06446 8344 ARTES LIBRARY 24837 VERITAS SCIENTIA OF THE UNIVERSITY OF MICHIGAN | E PLURIEUSUNUL SI QUAERIS PENINSULAM AMOENAMIN CIRCUMSPICE كانك