390 U.S. NATIONAL MUSEUM BULLETIN 288 



distance from end of snout about one-half their distance from eye. 

 Can thus rostralis sharp; loreal region flat, the upper lip flaring out 

 below it. Eye large, prominent, its diameter 1% times its distance from 

 tip of snout; interorbital diameter a trifle wider than that of upper 

 eyelid, equal to interval between nostrils. Tympanum distinct, its 

 greatest diameter two-thirds that of eye, separated from eye by an 

 interval equal to one-third its own diameter. Fingers long, slender, 

 with distinct lateral ridges, free, first and second subequal, fourth a 

 little longer than either and reaching nearly to base of disk of third, 

 which covers about one-fourth the tympanum; a long oval thumb pad 

 present; a smaller palmar callus; metacarpal tubercles well developed. 

 Toes webbed only at the base, long, third and fifth subequal, their 

 disks reaching to base of antepenultimate phalanx of fourth; disk of 

 fourth toe covering about one-sixth the tympanum and smaller than 

 that of third finger; a small oval inner metatarsal tubercle; outer 

 tubercle not distinguishable from other pustules on sole of foot; 

 a fin-like tarsal ridge, ending at heel; a heavy skinfold on heel and knee. 

 Body slender, in postaxillary region much narrower than greatest 

 width of head. When hind leg is adpressed, heel reaches far beyond 

 snout; when limbs are laid along the sides, knee and elbow overlap 

 greatly; when hind legs are bent at right angles to body, heels overlap 

 greatly. Skin of upper parts coarsely pustular (or very finely granular) 

 with two pairs of weak V-shaped glands between shoulders; a distinct 

 narrow dorsolateral line from posterior margin of eyelid to groin; 

 venter smooth anteriorly except for some irregular linear glands; 

 posterior belly finely granular, posterior and lower femur more coarsely 

 granular; a narrow glandular ridge from posterior corner of eye above 

 tympanum, ending behind tympanum; two small round glands behind 

 lower edge of tympanum; a skinfold across chest; a ventral disk; 

 probably external vocal sacs in the male. 



Dimensions. — Head and body, 33.5 mm.; head length, 12 mm.; head 

 width, 12.5 mm.; femur, 17.5 mm.; tibia, 21.5 mm.; foot, 17 mm.; 

 hand, 10 mm. 



Color in alcohol. — Above fawn color with traces of a faint dark cross- 

 band between the eyes, and two or three faint V or VV marks on back 

 outlining glands; faint dark crossbars on legs; venter buff, with dusky 

 dots on throat and chest; posterior femur buff, with very faint darker 

 marblings above; side of head buff, with pale brown dots on loreal and 

 snout regions, and seven dark triangular marks along upper jaw. 



Remarks. — The single Colombian example (MZUM 73423 from 

 Villavicencio, in Meta) of this species was so identified in the Museum 

 of Zoology, University of Michigan, but it also appears to resemble E. 

 conspicillatus rather closely. For lack of conclusive material, this 

 species is included here, as it may eventually be discovered in the 



