230 U.S. NATIONAL MUSEUM BULLETIN 288 



form, its posterior border very slightly free and shallowly notched. 

 Snout moderate, rounded when viewed from above, truncate in pro- 

 file, the upper jaw extending a little beyond lower; nostrils lateral, 

 considerably projecting, their distance from end of snout about one- 

 third that from eye, separated from each other by an interval equal 

 to about two-thirds their distance from eye. Canthus rostralis strongly 

 defined; loreal region concave and oblique, the upper lip flaring out 

 below it. Eye not particularly large but rather prominent, its diameter 

 equal to its distance from nostril; palpebral membrane not reticulate; 

 interorbital distance slightly greater than width of upper eyelid, 

 which is slightly greater than distance between nostrils. Tympanum 

 very distinct, about two-thirds the diameter of eye, separated from 

 eye by a distance equal to one-third of its own diameter, Fingers 

 webbed at base, fourth finger longer than second by the diameter of 

 a disk, reaching to disk of third which covers about two-thirds the 

 tympanic area; a spiny projecting pollex, a low ulnar ridge. Toes 

 slightly more than one-half webbed, the web on fourth toe reaching 

 base of the penultimate phalanx, third and fifth toes subequal, disk 

 of fourth toe covering about one-half the tympanic area; a distinct 

 oval inner and a smaller indistinct rounded outer metatarsal tubercle; 

 no tarsal ridge; no dermal appendage on heel. Body not elongate, in 

 postaxillary region a little narrower than greatest width of head; 

 when hind leg is adpressed, heel reaches beyond 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 greatly. 

 No patagium. Skin of upper parts very smooth; no transverse glan- 

 dular white ridge above vent; a rather narrow glandular ridge passing 

 above tympanum; skin of throat and chest very finely granular, that 

 of belly and lower surface of thigh uniformly and a little more coarsely 

 granular; no traces of a skinfold across chest. Adult or subadult male, 

 no vocal sac apparent. Skin of head not co-ossified with skull, roof of 

 skull not exostosed. 



Dimensions. — Head and body, 50.4 mm.; head length, 18.8 mm.; 

 head width, 19.7 mm.; femur, 28.1 mm.; tibia, 28.7 mm.; heel-to-toe, 

 37.2 mm.; hand, 15.5 mm. 



Color in alcohol. — Ground color white. A conspicuous, very dark 

 reddish brown bar between the nostrils which continues back along 

 the canthus rostralis and along the outer margin of upper eyelid. 

 Interrupted, less-conspicuous dorsolateral stripes of the same color; 

 an interocular dark spot. Each shank marked above with three 

 distinct narrow, dark spots, and a much smaller dark spot on dorsal 

 surface of each thigh just above knee and one across dorsal surface 

 of forearm. Elsewhere the dorsal surfaces are peppered with little 

 rounded specks, these being thickest on top of head and dorsum, less 



