FROGS OF COLOMBIA — COCHRAN AND GOIN 383 



and a faint square spot on center of back in front of sacrum; a dark 

 line from nostril to eye, continued above and behind tympanum; 

 upper lip pale olive buff with faint brown spots; legs with faint dark 

 crossbands, posterior femur mottled with fine olive-buff spots on a 

 wood brown background; venter pale olive buff, immaculate; soles 

 of feet and palms of hands pale spotted with wood brown. 



Remarks. — The dorsal surface is usually fawn color, sometimes 

 with a slightly darker triangular patch between the eyes, followed 

 by a faint chevron extending to the sacrum. The glandular ridge above 

 and behind the tympanum is black, and almost always is followed by 

 a small oval black spot just above the arm insertion and by a second 

 black spot near the dorsolateral fold a little behind the first one. 

 These two spots mark the presence of skin glands. The postanal 

 region is dark brown in most examples, but there is no wide, triangular 

 postanal patch as in most specimens of E. longirostris and E. con- 

 spicillatus. 



The maximum size of E. raniformis is 68 millimeters. 



In the 63 frogs measured, the heel reaches to beyond the tip of 

 snout in 94 percent and to the nostril or the tip of snout in 6 percent. 

 The toes are nearly or quite one-half webbed in about 27 percent, 

 one-third webbed in 44 percent, and one-fourth webbed in 29 percent. 



It is easy to confuse the large and long-legged frogs in this group — ■ 

 raniformis, longirostris, palmatus, and conspicillatus. Of those having 

 the toes one-fourth or more webbed, raniformis has an immaculate 

 light throat and belly; palmatus has a brown-spotted throat and white 

 belly; and longirostris has both throat and belly spotted with brown. 

 Other differences are noted under conspicillatus. 



In the original descriptions, raniformis and palmatus are stated to 

 have the first finger distinctly longer than the second, while in longi- 

 rostris these two fingers are about the same in length. In raniformis 

 the posterior surface of the femur is whitish reticulated with dark 

 brown; in palmatus it is black with numerous small yellowish spots — 

 the reticulations of raniformis carried to extremes, resulting in a dark 

 ground with some light spots. In longirostris the posterior femur is a 

 uniform brown. 



E. conspicillatus has only a trace of web at the base of the toes, 

 a distinct dark anal patch, and the venter immaculate and pale 

 except for a few small dusky spots around the edge of the lower jaw. 



E. fitzingeri, described by O. Schmidt from the Cordilleras of New 

 Granada (=Darien, Panama, probably to Choc6, Colombia), ap- 

 parently is related to the frogs just mentioned, but the lack of detail 

 in the original description does not allow it to be positively identified 

 with any of them. It may be a synonym of conspicillatus. 



