124 U.S. NATIONAL MUSEUM BULLETIN 2 88 



lower. Nostrils lateral, slightly projecting, their distance from end of 

 snout equal to their distance from eye. Canthus rostralis straight, 

 distinct; loreal region slightly concave, vertical, flaring outward to the 

 upper lip. Eye large, prominent, its diameter equal to its distance 

 from tip of snout; interorbital diameter V/ 2 times that of upper eyelid, 

 slightly greater than interval between nostrils. Tympanum hidden. 

 Fingers moderately long, normally developed, with faint lateral 

 ridges, webbed at base, first finger much shorter than second, fourth 

 longer than second, reaching to base of penultimate phalanx of third; 

 fingers and toes with swollen tips scarcely wider than the phalanges; 

 a small oval thumb pad present; a larger round palmar callus; meta- 

 carpal tubercles moderately developed on all except last phalanx of 

 each finger. Toes three-fourths webbed, except inner ones which are 

 completely webbed; third toe a little shorter than fifth, the disk of 

 which reaches to center of antepenultimate phalanx of fourth ; a very 

 small round inner metatarsal tubercle and a somewhat larger round 

 outer one; no tarsal ridge; a skinfold on heel and knee. Body rather 

 stout, in postaxillary region narrower than greatest width of head. 

 When arm is adpressed, tip of third toe reaches a point midway be- 

 tween groin and end of body; when hind leg is adpressed, heel reaches 

 axilla; when limbs are laid along the sides, knee and elbow are well 

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

 slightly separated; when arm is pressed backward, fingers extend be- 

 yond groin but not to rear of femur. Skin of upper parts rough with 

 many pointed tubercles on sides of body, sacrum and limbs; top of 

 head fairly smooth; edge of upper eyelids with heavy tubercles; 

 venter finely tubercular on throat and chest and on lower surface of 

 hind legs, the center of the belly with many fine transverse wrinkles; 

 a thick glandular ridge from posterior corner of eye above tympanic 

 area ending above angle of jaw; no apparent skinfold across the chest; 

 a slight ventral disk (?) ; no external vocal sacs in the male. 



Dimensions. — Head and body, 44.5 mm.; head length from angle of 

 jaw, 12.5 mm.; head width, 12.5 mm.; femur, 15 mm.; tibia, 15 mm.; 

 foot, 16 mm.; hand, 11 mm. 



Color in alcohol. — Slate color above and below, with a few small 

 white spots beginning on tip of snout, continued as short light stripes 

 along interorbital region and as well-separated spots behind eye, above 

 shoulder insertion, and along dorsolateral region to groin, where there 

 is a much larger light spot that extends also onto anterior proximal 

 part of femur; chin with three large Vhite |spots, and chest and belly 

 with four more pairs arranged quite regularly paralleling the middle 

 and continuing onto lower surface of femur; sides of head slate color 

 except for two small light spots on edge of upper eyelid; soles of feet 



