CHECKLIST OF THE AMPHIBIA OF MEXICO H 



5. Body black with more or less symmetrical rounded cream marks on 



head and body and a median series on compressed tail; tail short, 

 about 62 percent snout to vent; maxillary-premaxillary teeth 56 on 

 each side; a total of 55 vomeropalatine teeth iu a continuous series; 

 larvae large, golden yellow with numerous black spots; fleshy part of 



tail attenuated subsalsum (p. 11) 



Body not marked as described 6 



6. Olive-gray, with numerous, vertical, blackish dark bars on sides of 



body and tail tigrinum proserpine (p. 14) 



Not olive-gray or with numerous vertical, blackish dark bars on sides 

 of body and tail 7 



7. Caudal fin low 8 



Caudal fin high, thick, cream to olive-tan with numerous small dark 



spots; toes of adpressed Umbs reach little beyond wrist; tail 80-82 

 percent of snout-to-vent length; maxillary-premaxillary teeth 48-50 

 on each side; vomeropalatine teeth total about 42, more or less con- 

 tinuous; larvae light flesh with little or no pigment except on ventral 

 part of caudal fin granulosum (p. 12) 



8. Olive to dark oUve, with scattered black spots lacustris (p. 12) 



Brown to blackish with numerous small cream-white spots. _ velasci (p. 11) 



Known only in larval state 



1. Body pinkish or reddish with numerous dark spots which may form two 

 irregular lines on each side; caudal fin arising a little posterior to 



level of arm insertion rosaceum (p. 13) 



Body with brownish or blackish pigment on a greenish-yellow ground 

 color; caudal fin low, arising at tail base^* fluvinatum (p. 14) 



AMBYSTOMA SUBSALSUM Taylor 



Amhystoma subsalsum Taylor, Copeia, Oct. 15, 1943, pp. 151-156, figs. 1-3. 



Type— EUT-UMS No. 22139. 



Type locality. — Lake Alchichica, Puebla. 



Range.— Type locality. 



AMBYSTOMA VELASCI Dugfes 



Siredon Tigrina Velasco, La Naturaleza, vol. 4, 1879, pp. 212-236, pis. 7-9 

 (preoccupied by Salamandra tigrina Green, 19,2^ — Amhystoma tigrinum). 



Amhlystoma velasci Duges, La Naturaleza, ser. 2, vol. 1, 1888, p. 142 (substitute 

 name for Siredon Tigrina Velasco). 



Amhystoma tigrinum velasci Dunn, Copeia, 1940, p. 157 (part). 



Amhystoma velasci Taylor and Smith, Proc. U. S. Nat. Mus., vol. 95, 1945, 

 pp. 531-532, pi. 18, figs. 3, 4. 



» It is not certain whether the known specimens of rosaceum are relatively as old as those of fluvinatum. 



