FROGS OF COLOMBIA — COCHRAN AND GOIN 27 



Andagoya, Choco, Colombia. Tongue small, one-fourth as wide as 

 mouth opening, ovate, its posterior border free and unnotched; snout 

 wide at the tip and nearly truncate when viewed from above, flat and 

 slanting backwards in profile, the upper jaw extending well beyond 

 the lower. Nostrils inferolateral, slightly projecting, their distance from 

 end of snout a little less than their distance from eye. Canthus rostralis 

 bluntly rounded; loreal region slightly concave, vertical, descending 

 straight to the upper lip. Eye large, prominent, its diameter equal to 

 its distance from tip of snout; interorbital diameter 1% times that of 

 upper eyelid and a little greater than interval between nostrils. 

 Tympanum fairly distinct, its greatest diameter half that of eye, 

 separated from eye by an interval equal to about one-third its own 

 diameter. Fingers moderate, with enlarged disks, without lateral 

 ridges, free, first finger shorter than second, fourth equal to second, 

 their tips reaching just beyond base of penultimate phalanx of third, 

 the disk of which covers nearly half the tympanum; no apparent 

 thumb pad or palmar callus; metacarpal tubercles scarcely evident. 

 Toes moderate, with small disks, third toe longer than fifth, its disk 

 reaching halfway along antepenultimate phalanx of fourth; disk of 

 fourth toe covering about one-fourth the tympanum and much smaller 

 than that of third finger; a weak oval inner metatarsal tubercle and a 

 very small outer one; no tarsal ridge; a prominent skinfold on heel 

 and knee. Body moderate, in postaxillary region smaller than greatest 

 width of head. When hind leg is adpressed, heel reaches to posterior 

 corner of eye; when limbs are laid along the sides, knee and elbow 

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

 touch. Skin of upper parts smooth (under the lens appearing minutely 

 pustular everywhere) ; venter minutely pustular, with a few small 

 flattened granules on posterior part of belly and below vent; no 

 glandular ridge behind eye, but instead a glandular swelling suggesting 

 a parotoid gland; no skinfold across chest; no ventral disk; no external 

 vocal sacs. 



Dimensions. — Head end body, 35.5 mm.; head length, 10.5 mm.; 

 head width, 10 mm.; femur, 14 mm.; tibia, 15 mm.; foot, 12.5 mm.; 

 hand, 10.5 mm. 



Color in alcohol. — Black above, with many rounded silvery-white 

 spots, smaller on anterior parts, much larger on sacrum; upper surfaces 

 of legs black, with one large white spot and two smaller ones taking 

 the position of the usual diagonal crossbars; arms black above, with a 

 large white spot on both upper and lower arm; sides white with a few 

 black dots; venter pearl-gray, with an irregular black patch on center 

 of throat; edges of lower lips with small black dots or spots; region 

 around anus black; some black areas on lower limb surfaces corre- 

 sponding to position of dorsal silvery crossbands; upper lip edged with 



