FROGS OF COLOMBIA — COCHRAN AND GOIN 121 



their distance from eye. Can thus rostralis distinct; loreal region 

 concave, vertical, flaring to the upper lip. Eye fairly large and promi- 

 nent, its diameter equal to its distance from tip of snout; interorbital 

 diameter equal to that of upper eyelid, a little less than interval 

 between nostrils. Tympanum hidden. Fingers short, fully webbed, 

 first finger shorter than second, which is approximately equal to 

 fourth, both reaching to base of penultimate phalanx of third; a small 

 oval thumb pad and a large round palmar callus present; metacarpal 

 tubercles not distinguishable from the coarse granules covering 

 entire palm of hand. First toe distinct; third toe shorter than fifth, 

 which reaches to center of antepenultimate phalanx of fourth, the 

 latter appearing very long in comparison with the others, the web 

 reaching almost to its tip as a wide lateral ridge; a small oval metatarsal 

 tubercle and a small round outer one; sole of foot entirely covered 

 with coarse irregular granules, those on toes appearing to be arranged 

 in pairs; no true tarsal ridge; a heavy skinfold on heel and knee. 

 Body stout, in postaxillary region equal to greatest width of head. 

 When hind leg is adpressed, heel reaches barely three-fourths the 

 distance from groin to axilla; when limbs are laid along the sides, 

 knee and elbow are widely separated; when hind legs are bent at 

 right angles to body, heels fail to meet. Skin of upper parts heavily 

 tubercular and warty, the largest warts in a fairly distinct row along 

 the dorsolateral line, with a row of smaller tubercles on each side of 

 the midline; venter and sides with very coarse, large round warts, 

 with somewhat finer granules on limbs and throat; a short glandular 

 ridge from posterior corner of eye straight backwards above tympanic 

 area and ending above arm insertion; no skinfold across the chest; 

 no ventral disk. The male probably has the forearm enlarged but 

 lacks external vocal sacs, as in most other species of the genus. 



Dimensions. — Head and body, 30 mm.; head length, 9.5 mm.; head 

 width, 9.5 mm.; femur, 9 mm.; tibia, 9 mm.; foot, 9.5 mm.; hand, 6.5 

 mm. 



Color in alcohol. — Dorsum seal brown anteriorly, clove brown 

 posteriorly, some of the warts a little lighter; venter and sides seal to 

 clove brown, the large round warts walnut brown; sides of head clove 

 brown, immaculate; palms and soles seal brown, the tubercles a 

 trifle paler. 



Remarks. — In most characteristics MLS 143 resembles the de- 

 scription of the type of Atelopus bufonijormis Peracca from Puno, 

 Ecuador. The snout is equal to the diameter of eye in the former, 

 while it is a little longer than that in the latter. The most noteworthy 

 difference is that the interorbital diameter equals that of the upper 

 eyelid in the former, while it is said to be almost double in the latter. 

 No mention is made in the original description of bufonijormis of 



