FROGS OF COLOMBIA — COCHRAN AND GOIN 351 



Key to Colombian Species of Sphaenorhynchus 



a 1 . Vomerine teeth present and tympanum apparent externally. 



ft 1 . A distinct canthal dark stripe from tip of snout to eye . . . S. aurantiacus 

 b 2 . No dark stripe from tip of snout to eye S. dorisae 



a 2 . No vomerine teeth; tympanum not apparent externally . . . . S. habrus 



Sphaenorhynchus habrus (Goin) 



Figure 41 



1957. Sphenohyla habra Goin, p. 18 (Type locality, Leticia, Amazonas, Colombia) ; 



1958, p. 121. 

 1961. Dryomelictes habra. — Goin, 1961, p. 9. 

 1963. Hyla habra.— Gorham, 1963, p. 22. 



Diagnosis. — A tiny Sphaenorhynchus without an apparent tym- 

 panum and without vomerine teeth. 



The absence of the two above-mentioned characters serves to sep- 

 arate S. habrus at a glance from both S. dorisae and S. aurantiacus, 

 the two other species of the genus known to occur in Colombia. 



Description. — UF 8508 (holotype), from Leticia, Amazonas, Colom- 

 bia. Head moderately broad, width about equal to distance from 

 snout to occiput; snout an obtuse triangle as seen from above, tapering 

 abruptly to a slightly rounded tip; snout pointed and pronouncedly 

 projecting as seen from the side; the eyes very dark and thus standing 

 out prominently against, and through, the milky white skin, but the 



ftk 



Figure 41. — Sphaenorhynchus habrus, holotype, UF 8508 (X 2, except foot and 



hand, which are X 3) . 



