214 U.S. NATIONAL MUSEUM BULLETIN 288 



interorbital distance slightly less than width of upper eyelid, which 

 is relatively wide and greater than distance between nostrils. Tym- 

 panum very distinct, about three-fourths the diameter of eye, sep- 

 arated from eye by a distance equal to one-fourth its own diameter. 

 Fingers slightly webbed at base, fourth finger considerably longer 

 than second, reaching to middle of disk of third which covers about 

 one- third 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 toes subequal, disk of fourth toe covering about one-third the tym- 

 panic area; a distinct oval inner and a smaller but equally distinct 

 rounded outer metatarsal tubercle; no tarsal ridge but several small 

 warts along the posterior edge of foot; no dermal appendage on heel 

 but three definite warts arranged in a triangular position on each 

 heel. Body moderately elongate, in postaxillary region a little narrower 

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

 just beyond tip of snout; when limbs are laid along the side, knee and 

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

 overlap considerably. A patagium extends from the back of upper 

 arm to side of the body. Skin of upper parts very finely glandular; a 

 distinct glandular ridge encircling upper part of tympanum; skin 

 of throat and chest fairly smooth, that of belly and lower surface of 

 thigh uniformly granular; no traces of a skinfold across chest; adult 

 female, no vocal sacs. Skin of head not co-ossified with skull, roof of 

 skull very lightly exostosed. 



Dimensions. — Head and body, 48.2 mm.; head length, 17.4 mm.; 

 head width, 17.7 mm.; femur, 24.5 mm.; tibia, 27.4 mm.; heel-to-toe, 

 34.4 mm.; hand, 14 mm. 



Color in alcohol. — A dirty brown frog with darker mottled brown 

 blotches on back and side. Each loreal region has a mottled area. There 

 is a large smutty blotch on the back that extends from between the 

 eyes nearly back to the sacral hump. There is a narrow, somewhat 

 transverse smudge above the sacral hump. A series of small blotches 

 are scattered along each side between the axilla and groin. Each thigh 

 and shank is crossed by three rather wide crossbands of dirty brown 

 with less-distinct bands on the feet, arms, and hands. The entire 

 undersurface is a dark cadaverish gray. 



Remarks. — The specimen from Nariiio (CNHM 54765) was directly 

 compared with the series of cotypes in the British Museum and is 

 found to be conspecific with them. Our notes made at time of com- 

 parison are as follows: 



Most of the differences can be laid to differences in preservation. The CNHM 

 specimen has the skin harder and drier while the cotypes have the skin soft and 

 smooth. The CNHM specimen is much darker, but even so, if it is studied care- 



