FROGS OF COLOMBIA — COCHRAN AND GOIN 49 



below the canthal angle, their distance from end of snout about 

 one-half their distance from eye, separated from each other by an 

 interval equal to 1% times their distance from eye. Can thus rostralis 

 distinct and fairly sharp-edged; loreal region flat, with only a slight 

 transverse channel along its lower border, the upper lip almost in 

 the same plane with it, and vertical. Eye very large and prominent, 

 its diameter 1% times its distance from end of snout; interorbital 

 diameter equal to that of upper eyelid but only two-thirds the dis- 

 tance between the nostrils. Tympanum fairly distinct, at least on its 

 anterior and lower edges, its greatest width about one-half the diam- 

 eter of eye and located immediately behind eye. Fingers long, free, 

 not ridged, with distinct disks; disk of third finger covering one-fourth 

 the tympanum; first finger slightly longer than second, fourth nearly 

 as long; subarticular tubercles of fingers large but not very sharply 

 defined; a large indistinct palmar callus; toes faintly webbed, scarcely 

 ridged laterally, then disks well developed, disk of fourth toe a little 

 larger than that of third finger and equaling nearly one-half the 

 diameter of the tympanum; third toe much longer than fifth, reaching 

 halfway on antepenultimate phalanx of fourth; a short tarsal ridge 

 extending from base of inner metatarsal tubercle and ending in a 

 diagonal gland across the tarsus midway to heel; a small inner and a 

 very small outer metatarsal tubercle; subarticular tubercles of toes 

 smaller but a little more distinct than those of fingers. No inguinal 

 or lumbar gland. Body fairly elongate, in postaxillary region a trifle 

 narrower than greatest head width. When hind legs are adpressed, 

 heel reaches anterior corner of eye; when limbs are laid along the 

 side, knee and elbow greatly overlap; when hind legs are bent at 

 right angles to body, heels just touch. Skin heavily pustular above, 

 with a few weak tubercles in the lumbar region, and rather easily 

 torn; a small protuberance of skin above the anus; a slight ridge 

 behind the tympanum; venter entirely smooth except for postanal 

 granules; no ventral disk. No external vocal sacs apparent in the 

 male, but a slight longitudinal \vrinkling of the skin on either side of 

 the throat below the jaw commissure; tins area suffused with pale 

 grey. 



Dimensions. — Head and body, 22.5 mm.; head length, 7.5 mm.; head 

 width, 7 mm.; femur, 9 mm.; tibia 10.5 mm.; foot, 9 mm.; hand, 

 5.5 mm. 



Color in alcohol. — Dorsum dull heliotrope purple; a sepia lateral 

 stripe beginning at tip of snout, passing through loreal and tympanic 

 regions, widening on the sides and continuing to the groin; a whitish 

 area sharply contrasting with and defining the upper and lower 

 borders of this dark stripe; indistinct sepia markings between the 

 eyes and down center of back; anterior femur with a dark stripe, 



