FROGS OF COLOMBIA — COCHRAN AND GOIN 113 



Bufo glaberimus Gtinther 



Plate 16d-p 



1869. Bufo glaberrimus Gunther, p. 483, pi. 37, fig. 2 (type locality, Bogota, 

 Curtdinamarca, Colombia. — Boulenger, 1882a, p. 291; 1898a, p. 123. — 

 Peracca, 1904, p. 35.— Nieden, 1923, p. 112.— Gallardo, 1962, p. 96. 



Description. — USNM 144566, a half-grown specimen from Cano 

 Grande, Villavicencio, Meta, Colombia. No bony ridges on top of 

 head. Parotoids large, 1% times the eye diameter, oval, nearly longi- 

 tudinal, with a heavy lateral skinfold from the posterior outer border 

 along sides almost to groin; tongue half as wide as mouth opening, 

 obovate, its posterior border free and unnotched; snout rounded when 

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

 slightly beyond the lower. Nostrils lateral, slightly projecting, their 

 distance from end of snout about one-half their distance from eye. 

 Can thus rostralis distinct; loreal region flat, nearly vertical, slightly 

 concave before merging with the upper lip. Eye large, prominent, its 

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

 three-fourths that of upper eyelid, equal to interval between nostrils. 

 Tympanum distinct, its greatest diameter two-fifths that of eye, 

 separated from eye by an interval equal to one-fourth its own diameter. 

 Fingers moderately long, with lateral ridges, free, first finger a little 

 longer than second, fourth longer than either, reaching halfway on 

 penultimate phalanx of third; a small round thumb pad present; 

 a large, rounded palmar callus; metacarpal tubercles well developed. 

 Toes moderately long, one-half webbed, third toe much longer than 

 fifth, its disk reaching halfway on antepenultimate phalanx of fourth; 

 subarticular tubercles distinct, all single; a small but prominant oval 

 inner metatarsal tubercle and a smaller round outer one; a blunt 

 tarsal ridge, ending near heel; 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 to shoulder and tarso- 

 metatarsal joint reaches to end of snout; when limbs are laid along the 

 sides, knee and elbow are narrowly separated; when hind legs are 

 bent at right angles to body, heels slightly overlap. Skin of upper 

 parts nearly smooth (glandular under lens), with a few minute pustules 

 between the eyes and some faint tubercles on sacrum; belly faintly 

 granular, throat and chest nearly smooth; lower leg surfaces more 

 heavily granular; a short, heavy glandular ridge from posterior 

 corner of eye above tympanum, ending at parotoid; a faint skinfold 

 across the chest; a distinct ventral disk; an external vocal sac in 

 the male? 



Dimensions. — Head and body, 37 mm.; head length, 12 mm.; head 

 width, 13 mm.; femur, 14.5 mm.; tibia, 16 mm.; foot, 14.5 mm.; hand, 

 10.5 mm. 



