go 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 3^ inches. Head to gular fold 4-5 inch. 



Tail 1% " Breadth of head 3 



Habitat Elevated Regions of Eastern Mexico. 



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 externallv 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, strong!}' 



