FROGS OF COLOMBIA — COCHRAN AND GOIN 517 



of Centrolenella, but rather thickly beset with distinct, pointed, whitish, 

 wart-like structures that are present on the back, upper eyelids, 

 sides of head and tympani, and dorsal surfaces of arms, legs, and feet. 

 No glandular ridge encircling upper part of tympanum; skin of throat 

 and chest smooth, that of belly and lower surface of thigh uniformly 

 and coarsely granular; no traces of a skinfold across chest; adult male, 

 vocal sac slightly distended. Skin of head not co-ossified with skull, 

 roof of skull not exostosed. 



Dimensions. — Head and body, 29.3 mm.; head length, 9.2 mm.; 

 head width, 10.1 mm.; femur, 16 mm.; tibia, 16.5mm.; heel-to-toe, 

 22 mm. 



Color in alcohol. — Top of head and dorsum purplish gray. The 

 dorsal ground color extends as a narrow stripe along the upper arm, 

 then expands to cover the entire dorsal surface of the forearm, and ex- 

 tends onto the base of the fourth finger. On the hind limb the dorsal 

 ground color extends as a narrow stripe along the dorsal surface of the 

 thigh, then expands to cover the entire dorsal surface of the shank 

 and foot, and extends onto the dorsal surface of the fourth and fifth 

 toes. The sharp, wart-like protuberances, which are thickly sprinkled 

 over all of the pigmented dorsal surfaces except the face, are pearly 

 white in color. Ventral surfaces pale. 



Remarks. — This species is closest geographically, and perhaps 

 phylogentically, to antioquiensis. In build, it is somewhat similar to 

 the latter species but differs from it in having larger eyes, large digital 

 disks, reduced finger webbing, and sharp, white spines on the dorsal 

 surfaces. In this latter character it differs from any centrolenid known 

 to us. 



We dedicate this species to Dr. Alf G. Johnels, curator of the 

 Naturhistoriska Riksmuseum, Stockholm, Sweden, who has been very 

 kind to us. 



Collection Localities in Colombia 



Listed below in alphabetical order are all of the localities in Colombia 

 from which we have seen frogs, Names of rivers, paramos, sierras, 

 bays, etc., are given under the specific part of the name. For example, 

 "Rio Magdalena" is listed "Magdalena, Rio." Sometimes, in order to 

 avoid confusing future users of this gazetteer, when the same name 

 appears in several different political subdivisions we have included 

 localities from which we do not have specimens; however, we have not 

 attempted to include all duplicate names. Latitudes and longitudes 

 are approximate. Most were obtained by measuring with calipers from 

 the locality to the appropriate latitude and longitude lines on the 

 Mapa Fisico Politico (published by the Republic of Colombia in 



337-262—70 34 



