FROGS OF COLOMBIA — COCHRAN AND GOIN 333 



very shallowly notched behind. Snout moderate, pointed when viewed 

 from above, truncate in profile, the upper jaw not extending consider- 

 ably beyond lower; nostrils entirely lateral, very slightly projecting, 

 their distance from end of snout about one-half that from eye, sepa- 

 rated from each other by an interval nearly equal to their distance from 

 eye. Canthus rostralis very sharply defined; loreal region flat and 

 practically vertical, the upper lip not flaring out below it. Eye moderate 

 but prominent, its diameter one-third again as great as its distance 

 from nostril; palpebral membrane not reticulate; interorbital distance 

 greater than width of upper eyelid, which is about equal to its distance 

 between nostrils. Tympanum very distinct, about one-half the diam- 

 eter of eye, separated from orbit by a distance about equal to one- 

 third its own diameter. Fingers unwebbed, fourth finger longer than 

 second, reaching to middle of disk of third which covers about one- 

 third the tympanic area; no projecting rudiment of a pollex; a weakly 

 developed ulnar ridge. Toes unwebbed, first toe longer than second, 

 fifth a disk longer than third, disk of fourth covering about one- 

 fourth the tympanic area; a distinct oval inner and a smaller indistinct 

 rounded outer metatarsal tubercle; tarsal ridge present; no dermal 

 appendage on heel. Body somewhat elongate, in postaxillary region 

 distinctly 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 overlap considerably; when hind legs are bent at 

 right angles to body, heels overlap appreciably. No patagium. Skin of 

 upper parts fairly smooth except for dorsolateral folds that extend 

 from posterior portion of eye to sacral hump and bear a distinct but 

 narrow row of small, rounded pustules, each pigmented a creamy 

 white; a rather narrow glandular ridge encircling upper part of tym- 

 panum and extending downward toward shoulder; skin of throat and 

 chest smooth, that of belly and lower surface of thigh uniformly and 

 very finely granular; no traces of a skinfold across chest. Possibly a 

 juvenile, sex not determinable, no vocal sac apparent. Skin of head 

 not co-ossified with skull, roof of skull not exostosed. 



Dimensions. — Head and body, 34.7 mm.; head length, 13.2 mm.; 

 head width, 11.7 mm.; femur, 13.3 mm.; tibia, 14.9 mm.; heel-to-toe, 

 19.8 mm.; hand, 9 mm. 



Color in alcohol. — Slate blue above, brownish gray below. Upper and 

 lower lips margined with a distinct white line, a very distinct row of 

 small white dots extending from upper eyelid along dorsolateral fold 

 to sacral hump. Very distinct white lines bordering outer margin of 

 hand and ulnar fold and outer margin of foot and tarsal fold. A very 

 distinct short horizontal white line above vent, this line just matching 

 white line on heels when legs are flexed. A rather indistinct white line 

 on each side extending posteriorly from angle of jaw to about middle of 



