THE BATRACHIA OF NORTH AMERICA. 



Satania7idro})s giijantea, Wagl., I. c. 



Eiirycea Jiiucronuta, Ratin., /. c. 



Mciiopoma /jifjanUa, Tschudi, /. c. 



Protono2}sis horrida, Gray, Cat. Batr. Grad. Brit. Mus., eel. 1, p. 53. 



39 



Fig. 5. Cryptobranchus allegheniensis DauA.; No. 9752. Pennsylvania; natural size. 



Body moderately elongate and depressed ; the liiubs quite short. The 

 tail inucli compressed, about one-half the length of the head, and body. 

 The neck wide; the head a little wider, plane above, fiat aud much de- 

 i])ressed, with very short, wide, and rounded muzzle. 



The nostrils are near the labial border, and look forwards. The space 

 '.separating them is about half the iuterorbitil width. The eyes arequite 

 jsmall, and are covered with a rather thin cornea, but are without dis- 



