FROGS OF COLOMBIA — COCHRAN AND GOIN 315 



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 rather well defined ; loreal region slightly concave and nearly 

 vertical, the upper lip flaring out but slightly below it. Eye neither 

 large nor prominent, its diameter equal to 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 slightly distinct, about one-third the 

 diameter of eye, separated from eye by a distance nearly equal to its 

 own diameter. Fingers webbed at base between fingers 3 and 4 and 

 with a trace of webbing between fingers 2 and 3, fourth finger about 

 one-half disk longer than second, just reaching to disk of third which 

 is about one-third again as great as the tympanic area; no projecting 

 rudiment of a poll ex; no ulnar ridge. Toes slightly more than one-half 

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

 third and fifth toes subequal, disk of fourth toe slightly greater than 

 the tympanic area; a distinct oval inner but no distinct outer meta- 

 tarsal tubercle; no tarsal ridge; no dermal appendage on heel. Body 

 rather elongate, in postaxillary region a little narrower than greatest 

 width of head; when hind leg is adpressed, heel reaches posterior 

 margin of eye; when limbs are laid along the side, knee and elbow fail 

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

 greatly. A trace of a patagium extends from the back of upper arm to 

 side of body. Skin of upper parts smooth; a heavy glandular fold 

 passing above upper part of tympanum, then curving downward to 

 above insertion of arm, where it terminates; skin of throat and chest 

 smooth, that of belly and lower surface of thigh uniformly granular; 

 very faint traces of 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, 48.3 mm.; head length, 14.4 mm.; 

 head width, 15.7 mm.; femur, 21 mm.; tibia, 22.7 mm.; heel-to-toe, 

 36 mm.; hand, 14.9 mm. 



Color in alcohol. — Dorsal ground color a pale grayish brown rather 

 thickly sprinkled with pepper-like black specks. The specks are re- 

 duced on the top of head and snout and are less prominent on the 

 dorsal surfaces of thighs and forearms than they are on the dorsal 

 surfaces of the rest of the limbs. The entire ventral surface is a cadav- 

 erish gray with faint traces of flecking on the chin and throat. 



Color in life. — An adult female (CJG 2299, collected by Alice 

 Hunter) was, in life, a yellowish brown with a definite pattern of more 

 or less uniformly distributed pencil-like black spots on all the dorsal 

 surfaces. All ventral surfaces were a dirty gray without pattern except 

 for faint pepper-like flecks under the throat and a yellowish tinge to 

 the under-margin of the jaws. There was some evidence of metachrosis 



