FROGS OF COLOMBIA — COCHRAN AND GOIN 



175 



of light tan. Exposed ventral surfaces are brownish gray with the 

 underside of chin being a little darker than the belly. 



Gastrotheca lielenae Dunn 



Figure 13 



1944. Gastrotheca helenae Dunn, 1944b, p. 404 (type locality, Colombia, Norte 

 de Santander, Paramo de Tama); 1957, p. 44. — Gorham, 1963, p. 21. 



Diagnosis. — A Gastrotheca with the cranial derm free from the head, 

 without an intersquamosal shelf forming a nearly straight margin at 

 the back of the skull, without dermal appendages on the heels, and 

 without superciliary processes. 



This species can be distinguished from all other Colombian Gastro- 

 theca except mertensi and aureomaculata by the above combination of 

 characters. From those two species, and indeed from all Gastrotheca 

 known to us. it can be distinguished at a glance by its distinctive 

 pattern. 



Figure 13. — Gastrotheca helenae, holotype, MLS 268 (same size). 



