FROGS OF COLOMBIA — COCHRAN AND GOIN 301 



distance from tympanum to eye slightly less than diameter of tym- 

 panum; upper eyelids, top of head, and dorsum smooth. Well-devel- 

 oped disks on all fingers and toes; disk of second finger about equal 

 to diameter of tympanum (disk of third finger of left hand partially 

 removed to permit view of terminal phalanx). Fingers not particularly 

 slender; third finger fully webbed for only about one- third its length 

 but a slender margin of web extends distally to base of penultimate 

 phalanx; fingers 3-4-2-1 in order of decreasing length with fingers 4 

 and 2 being nearly subequal. Toes slender, fully webbed except the 

 fourth toe which has the web extending to base of penultimate phalanx; 

 toes 4-3-5-2-1 in order of decreasing length. Heels slightly over- 

 lapping when legs are flexed with femora held at right angles to the 

 body; knees and elbows in contact when limbs are pressed along the 

 side; heel extending to anterior margin of eye when leg is pressed 

 along body. A moderately developed patagium extends from back of 

 upper arm to side of body. Venter and underside of thighs rugose; 

 underside of chin covered by loosely folded, external vocal pouch 

 which is very finely rugose. There is a pair of glandular areas in the 

 skin of the pectoral region. Each area is about 2% millimeters in 

 diameter and lies just posterior to the insertion of the arm. The areas 

 are separated on the median line by about two millimeters. 



Dimensions. — Head and body, 22.8 mm.; head width, 8.3 mm.; tip 

 of snout to posterior margin of tympanum, 7.7 mm.; diameter of eye, 

 3 mm. ; diameter of tympanum, 1 mm. ; hind leg (vent to tip of longest 

 toe), 38.5 mm.; hind leg (vent to heel), 22.3 mm. 



Color in alcohol. — Ground color above tannish brown, scattered 

 punctulations of darker brown on the back between the eyes and the 

 shoulder region and a similar patch of darker punctulations above 

 the sacral region. Darker pigment is also in evidence on the elbows and 

 in bands across the shank. There is, above each eye, a conspicuous, 

 creamy patch that extends from the free margin of the upper lid down 

 onto the interocular region where it approaches, but does not quite 

 meet, its fellow from the opposite side. Similar creamy white patches 

 make up a short, arched row of light flecks that extends from above 

 the tympanum on each side to above the axilla where it becomes 

 obsolescent. The dorsal surface of the thigh has on it some tannish 

 pigment similar to the dorsal ground color but is nevertheless paler 

 than the dorsum and is without a distinct pattern. The entire ventral 

 surface is immaculate except for a few flecks of dark pigment on each 

 side of the throat near the posterior portion of the lower jaw. 



Color in life. — When captured, this specimen was predominately 

 brown above and whitish below. The thighs were salmon pink below 

 and somewhat dusky dorsally. The bars above the eyes and the row 

 of light flecks on each side behind the head were creamy white. A few 



