FROGS OF COLOMBIA — COCHRAN AND GOIN 115 



head. Tongue about two-fifths as wide as mouth opening, spatulate, 

 its posterior border free and uiniotched; snout broadly rounded when 

 viewed from above, declivitous in profile, the upper jaw extending 

 well beyond the lower. Nostrils lateral, projecting, then- distance 

 from end of snout one-half their distance from eye. Canthus rostralis 

 sharp and straight; loreal region flat, vertical, descending 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, 

 almost twice the interval between nostrils, Tympanum distinct, its 

 greatest diameter three-fifths that of eye, separated from eye by an 

 internal equal to one-fourth its own diameter. Fingers rather long, with 

 very weak lateral ridges, free, first finger much longer than second, 

 fourth longer than either, its tip reaching to base of penultimate 

 phalanx of third; a small oval thumb pad present; a larger squarish 

 palmar callus; metacarpal tubercles well developed, single. Toes 

 fairly long, one-fourth webbed, third toe a little longer than fifth, its 

 tip reaching halfway on antepenultimate phalanx of fourth; a promi- 

 nent oval inner metatarsal tubercle and a smaller round outer one; 

 a rather indistinct tarsal ridge, ending near heel; a series of skinfolds 

 on heel and knee. Body elongate, in postaxillary region narrower 

 than greatest width of head. When hind leg is adpressed, heel reaches 

 center of eye and tarsometatarsal articulation extends far beyond tip 

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

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

 Skin of upper parts weakly tubercular everywhere, even between 

 eyes and on eyelids; venter smooth, but with fine folds across throat 

 and most of abdomen; a short, narrow glandular ridge from posterior 

 corner of eye above tympanum, merging with the parotoid, which 

 is as long as its distance from nostril; no skinfold across the chest; 

 no ventral disk; an external vocal sac in male. 



Dimensions. — Head and body, 46 mm.; head length, 15 mm.; 

 head width, 15.5 mm.; femur, 20 mm.; tibia, 22 mm.; foot, 16.5 mm.; 

 band, 12 mm. 



Color in alcohol. — Dorsum sepia, with a pair of clove brown spots 

 between shoulders and another pah* just anterior to sacrum; upper 

 limb surfaces with indistinct darker crossbands; venter seal brown 

 anteriorly, the posterior part of belly and lower surface of limbs fawn 

 color with heavy seal brown spots except on proximal lower femur 

 which is unspotted; posterior femur mottled sepia and fawn color; 

 side of head clove brown, with a paler spot from anterior corner of 

 eye to lip border; side of body sepia, mottled with fawn color below; 

 palms of hands and soles of feet seal brown, the tubercles a little 

 lighter. 



