FROGS OP COLOMBIA — COCHRAN AND GOIN 163 



Dimensions. — Head and body, 33.1 mm.; head length, 12.3 mm.; 

 head width, 12.7 mm.; femur, 19.7 mm.; tibia, 19.8 mm.; foot, 25.3 

 mm.; hand, 10 mm. 



Color in alcohol. — This specimen is now a warm medium brown 

 above and a dirty, yellowish brown below without a trace of pattern. 



Variation. — A series of fresh specimens from the Rio Minca in the 

 Sierra Nevada de Santa Marta, collected by Fred Medem, permits a 

 little better understanding of the pattern variation in this species than 

 we have had heretofore. In each of the fresh specimens, one of the most 

 conspicuous pattern elements is a broad dark band between the eyes 

 bordered with a very pale narrow margin. In some of the specimens, 

 this band has a straight margin anteriorly and a v-shaped margin 

 posteriorly so that the interocular bar has the form of an inverted 

 triangle. A similar sort of light-bordered, dark band extends downward 

 and slightly anteriorly from each eye to the margin of the upper lip, 

 and another dark band extends from the eye backward through the 

 tympanum. However, the ventral margin, but not the dorsal margin, 

 of the latter band is bordered by white. The crossbands on the hind 

 legs seem to be more distinct than they are in C. fuhrmanni (though 

 not so marked as they are in C. nicefori) , but this may be due to the fact 

 that the specimens of boulengeri are fresher than those of fuhrmanni. 

 Ventrally, these specimens are dark gray on the chin becoming lighter 

 posteriorly, while the undersurfaces of the thighs and. to a lesser 

 extent, the posterior portion of the belly and the undersurfaces of the 

 shanks and arms are bright yellow. 



Structurally, the specimens of boulengeri seem to have a relatively 

 shorter, broader body, whereas the specimens of fuhrmanni seem to 

 have heavier thighs. No structural differences can be observed in the 

 amount of webbing on the feet. 



Specimens Examined 



COLOMBIA 



Magdalena: Santa Marta Mts., MZUM 47408-9, 48300, BM 1921.1.25.1; San 

 Lorenzo, Santa Marta Mts. MZUM 48530 (holotype), 48614-5, 48617, 

 54620-1, 54623-6, MCZ 8980, USNM 118734; Cincinnati, Santa Marta 

 Mts., MZUM 48531-5, 48537-8, 54622, 54631-2, 54638; Quebrada, Santa 

 Marta Mts., MZUM 54627-8; Quebrada Hueva Santa, Santa Marta Mts., 

 MZUM 54629; Quebrada Viernes Santo, San Lorenzo, MZUM 54630; Rfo 

 Minca, on road to San Lorenzo, Santa Marta Mts., CJG 2341-50, 2452-3. 

 Santandeb: San Gil, MZUM 74812, MLS 202. 



Genus Gastrotheca Fitzinger 



1843. Gastrotheca Fitzinger, p. 30 (type species, Hyla marsupiata Dum€ril and 

 Bibron). 



Generic diagnosis. — Medium- to large-size hylids without teeth on 

 the mandible, palatines, or parasphenoid; with a well-defined pouch 



