Cope.l ^22 [0 ct. 1, 



equaling that of the muzzle. The distance between the nostrils is equal 

 to that between the bases of the eyelids at their middles. The toes are 

 short and free, one phalange of the first digit on each foot projecting. 

 The ends of the toes are obtuse and bulbiform. A gular fold. Lateral 

 folds fourteeu. 



Measurements (No. 49fl). M. 



Total length 0625 



Length of head and body 034 



" to groin 0314 



" axilla 0045 



" " line of rictus oris 006 



" " "eye 0035 



of fore leg 0095 



" " foot 0032 



" hind leg 0095 



" " foot 004 



Width of head 0077 



" between eyes 0025 



Color, above, uniform dark reddish-brown ; below, uniform light 

 brown. 

 I have seen but one specimen of this species, as follows : 



No. No. of specimens. Locality. Collector. 



9447. 1. California. Dr. J. G. Cooper. 



Amblystoma decorticatum Cope, sp. nov. 



This species has a good deal of affinity in its characters to the A. paroti- 

 cum Baird, but it differs in important points of structure, as well as in its 

 external appearance. 



Its general proportions are not slender, and the limbs, especially the 

 posterior ones, are very stout. The tail is long and is compressed from 

 the base. It does not bear a fin at any part. Its length, in the single 

 specimen before me, is equal to that of the head and body (including the 

 vent), less the distance from the eye to the end of the muzzle. The head 

 is short and the muzzle is contracted, and is steeply rounded in profile. 

 The distance from the muzzle to the axilla enters the length from the 

 axilla to the groin one and a half times. The width of the head enters 

 the total length to the groin four times. The limbs when pressed to the 

 side overlap by the length of the fingers. 



There is no canthus rostralis, and the lower jaw does not project beyond 

 the upper. The external nares are almost terminal, and are as far apart 

 as the distance between the inner borders of the choanse. The latter are 

 rather large and are transverse. The vomeropalatine series of teeth form 

 a short transverse band which is within the lines of the internal borders of 

 the inner nares, and a considerable distance posterior to them. The tongue 

 is wider than long, but does not fill the wide floor of the mouth laterally. 



