1. MEGALOBATRACHTTS. 2. CRYPTOBRANCHUS. 81 



finned, the end rounded. Skin very porous, tubercular, tubercles 

 largest and most prominent on the head ; a thick cutaneous fold 

 along each side. Brown, lighter beneath, spotted with black. 



Total length 87 centim. 



From snout to cloaca 53 ,, 



Head (to constriction of neck) .... 13 „ 



Width of head 14 „ 



Fore limb 12 „ 



Hind limb 12 „ 



Tail 34 „ 



Japan ; China. 



a. Adult, stuffed. Japan. Leyden Museum. 



b. Skeleton of a. Japan. Leyden Museum. 



c-d. Adult & hgr. Japan. ' Challenger ' Expedition. 



e. Skeleton. Japan. 



/. Hgr. China. R. Swinhoe [C.]. 



2. CRYPTOBRANCHUS. 



Cryptobranchus, Leuckart, Isis, 1821, p. 260. 



Abranchus, Marian, Ann. Lye. N. Y. i. p. 221. 



Menopoma, Harlan, eod. loc. p. 270 ; Tschudi, Batr. p. 96 ; Dum. 8f 



Bibr. ix. p. 205. 

 Salamandrops, Wagl. Syst. Amph. p. 209. 

 Eurycea, Rafin. Atlant. Journ. 1832, p. 121 (Jlde Baird). 

 Protonopsis {Bart.), Gray, Cat. p. 53. 



Tongue covering the floor of the mouth, anterior border free. A 

 strong series of vomerine teeth between the choanse, parallel with 

 and close to the intermaxillary and maxillary teeth. Spiraculum 

 or gill-opening present (at least on the left side). Four branchial 

 arches. Digits 4 — 5. 



North America. 



1. Cryptobranchus alleghaniensis. 



Protonopsis horrida, Gray, Cat. p. 53. 

 Salamandra alleghaniensis, Daud. Rept. viii. p. 231. 



gigantea, Barton, On Siren lacertina. 



Molge gigantea, Merr. Tent. p. 187. 



Cryptobranchus salamandroides, Leuckart, I. c. 



Abranchus alleghaniensis, Harlan, I. c. 



Menopoma alleghaniensis, Harlan, I. c. ; Holbr. N. Amer. Herp. v. 



p. 95, pi. 32 ; Bekay, N.Y. Faun., Rept. p. 89, pi. 18. f. 44 ; Dum. 



fy Bibr. p. 207, pi. 94. f. 1 ; Wied, Nova Acta Leop.- Carol, xxxii. 



p. 133, pi. 6. 

 Salamandrops gigantea, Wagl. I. c. 

 Eurycea mucronata, Rafin. I. c. 

 Menopoma gigantea, Tschudi, I. c. 

 Cryptobranchus alleghaniensis, Van der Hoeven, Tijdsehr. v. Nat. 



Gesch. en Physiol, iv. p. 384, pi. v. a, f. 3-4, & v. b. 



Habit very stout, exactly as in the preceding species. Head 

 large, broad, much depressed; snout rounded; nostrils very small, 



