FROGS OF COLOMBIA — COCHRAN AND GOIN 307 



placed that the light areas between them form a network of fine lines 

 in a reticulate pattern very reminiscent of the pattern of a giraffe. 



H. reticulata may be separated from its nearest relative, H. laynei, 

 by the fact that the latter has at most one or two rows of rounded 

 spots down the middle of the back. 



Description. — MLS 25, from Ceilan, west of Florencia, Caqueta, 

 Colombia. Vomerine teeth in two small, rounded patches, lying close 

 together between the small, rounded choanae; tongue three-fourths as 

 wide as mouth opening, broadly cordiform, its posterior border free 

 with a distinct median notch. Snout moderate, rounded when viewed 

 from above, truncate in profile, the upper jaw extending but very 

 slightly beyond lower; nostrils more lateral than superior, not partic- 

 ularly projecting, their distance from end of snout about one-half that 

 from eye, separated from each other by an interval equal to about 

 their distance from eye. Canthus rostralis slightly defined; loreal 

 region flat and nearly vertical, the upper lip flaring out hardly at all 

 below it. Eye moderate, not prominent, its diameter slightly greater 

 than its distance from nostril; palpebral membrane not reticulate; 

 interorbital distance slightly greater than width of upper eyelid, which 

 is about equal the distance between nostrils. Tympanum distinct, 

 about one-third the diameter of eye, separated from eye by a distance 

 nearly equal to its own diameter. Fingers webbed at base, web on 

 third finger reaching base of penultimate phalanx, fourth longer than 

 second, reaching to proximal third of disk of third finger which is 

 half again as large as the tympanic area; no projecting rudiment of 

 a pollex; no ulnar ridge. Toes slightly more than one-half webbed, 

 the web on fourth toe reaching the base of the penultimate phalanx, 

 third and fifth subequal, disk of fourth just covering the rounded 

 outer metatarsal tubercle; no outer but an inner tarsal ridge; no 

 dermal appendage on heel. Body not elongate, in postaxillary region 

 narrower than greatest width of head; when hind leg is adpressed, 

 heel reaches almost to tip of snout; 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. A well- 

 developed patagium extends from the back of upper arm to side of 

 body. Skin of upper parts smooth; a well-developed narrow glandular 

 ridge encircling upper part of tympanum; skin of throat and chest 

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

 granular; a skinfold across chest; adult female, no vocal sac. Skin of 

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



Dimensions. — Head and body, 31.8 mm.; head length, 10.8 mm.; 

 head width, 11 mm.; femur, 16 mm.; tibia, 18.5 mm.; heel-to-toe, 

 26 mm.; hand, 10.2 mm. 



Color in alcohol. — The entire dorsal surface — including top of head, 



