FROGS OF COLOMBIA — COCHRAN AND GOLN 155 



developed postorbital spines with a curving posterior margin between 

 them. On the side of the head, the helmet behind the eye and between 

 the angle of the jaw and the postorbital spine is interrupted only by 

 the tympanum. 



Dimensions. — Head and body 45.5 mm.; head length 22.4 mm. 

 (exclusive of proboscis); head width, 23.3 mm.; femur, 23.6 mm.; 

 tibia, 26.5 mm.; heel-to-toe, 34.7 mm.; hand, 15.6 mm. 



Color in alcohol. — A very pale tan frog with a darker brown tri- 

 angular area on the back just posterior to helmet, the skin above the 

 tips of neural spines dark brown, a small brown spot above the middle 

 of urostyle, a dark triangular area below vent, and chin, throat, and 

 chest dark chocolate brown. The brown on the chest extends onto the 

 undersurface of upper arm and then crosses as a band across the upper 

 surface of forearm. The margins of both upper and lower lips are 

 mottled with dark brown. Three narrow, rather pale, brown cross- 

 bands occur on upper surface of each thigh, shank, and foot. Dorsal 

 surfaces of fingers are rich chocolate brown in contrast to the pale 

 dorsal surface of the hand. 



Remarks. — We cannot follow Myers and Carvalho in synonymizing 

 this form with C. bubalis. We strongly suspect that time and material 

 will demonstrate rather extensive geographic variation in this group 

 and that many of the nominal forms will prove to be geographic 

 races of one or two widespread polytypic species. 



Specimens Examined 

 COLOMBIA 



Antioquia: Santa Rita Creek, 14 mi. north of Mesopotamia, AMNH 1341 

 (type), 1342-3 (photographs); eight km. south of Valdivia, CNHM 63850. 



Genus Cryptobatrachus Ruthven 



1916. Cryptobatrachus Ruthven, 1916b, p. 1, (type species, Cryptobatrachus 

 boulengeri Ruthven) . 



Generic diagnosis. — Vomerine teeth in two nearly straight transverse 

 series, which nearly touch on the midline and which lie behind the 

 rounded choanae; sacral diapophyses nearly rounded; female carries 

 the eggs on her back; eggs hatch directly into frogs; a single subgular 

 vocal pouch in the male. 



Key to Colombian Species of Cryptobatrachus 



a 1 . Without distinct pale light spots on dorsum and with thighs dark with light 



blotches. 



b 1 . Distance from anterior corner of eyelid to naris distinctly less than distance 



from anterior to posterior corner of eyelid; dorsum rough and dorsolateral 



folds fairly distinct C. fuhrmanni 



