FROGS OF COLOMBIA — COCHRAN AND GOIN 



285 



a smaller but equally distinct rounded outer metatarsal tubercle; no 

 tarsal ridge; no dermal appendage on heel. Body somewhat elongate, 

 in postaxillary region a little narrower than greatest width of head; 

 when hind leg is adpressed, heel reaches middle of eye; when limbs are 

 laid along the side, knee and elbow meet snugly; when hind legs are 

 bent at right angles to body, heels overlap greatly. A patagium extends 

 from the back of upper arm to side of body. Skin of upper parts highly 

 smooth; no distinct narrow glandular ridge encircling upper part of 

 tympanum; skin of throat and chest smooth, that of belly and lower 

 surface of thigh uniformly and very finely granular; traces of a skinfold 

 across chest; adult female, no vocal sac. Skin of head not co-ossified 

 with skull, roof of skull not exostosed. 



Dimensions. — Head and body, 20 mm.; head length, 6.4 mm.; 

 head width, 6.4 mm.; femur, 9 mm.; tibia, 10.4 mm.; heel-to-toe, 

 14.5 mm.; hand, 6.3 mm. 



<^^V'''' . 



Figure 29. — Hyla riveroi, holotype, CM 37433 (X 3). 



