FROGS OF COLOMBIA — COCHRAN AND GOIN 



173 



Gastrotheca medemi probably is most closely related to G. nicefori, 

 from which it differs in its narrower head, shorter legs, and smaller 

 tympanum. 



Description of holotype. — Vomerine teeth in two short, rounded 

 series, lying between the small, rounded choanae; tongue four-fifths 

 as wide as mouth-opening, broadly rounded, its posterior border 

 slightly free and shallowly notched. Snout moderate, somewhat 

 U-shaped when viewed from above, somewhat rounded in profile for 

 a Gastrotheca, the upper jaw extending a little beyond lower; nostrils 

 more lateral than superior, very slightly projecting, their distance 

 from end of snout about two-fifths that from eye, separated from each 

 other by an interval equal to about three-fifths their distance from 

 eye. Canthus rostralis well defined; loreal region concave and some- 

 what oblique, the upper lip flaring out below it. Eye moderate, mod- 



Figure 12. — Gastrotheca medemi, paratype, CNHM 81367 (same size) 



