356 



U.S. NATIONAL MUSEUM BULLETIN 288 



from snout to occiput; snout triangular as seen from above, tapering 

 to a slightly rounded tip; snout pointed and pronouncedly projecting 

 as seen from side; eyes very dark, and thus standing out prominently 

 against and through the milky white skin, but neither large nor 

 protuberant; diameter of eye about equal to distance from eye to 

 nostril; nostril very near tip of snout; interorbital space about 1% 

 times the diameter of eye; tympanum small and indistinct; distance 

 from tympanum to eye about two-thirds the diameter of tympanum; 

 eyelids, top of head, and dorsum finely rugose. Well-developed 

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

 to diameter of tympanum. Fingers not particularly slender; third 

 finger webbed to base of penultimate phalanx; fingers 3-4-2-1 in order 

 of decreasing length. A pronounced rudiment of a pollex. Toes 

 moderately slender, fully webbed to base of disk on each toe; toes 

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

 when legs are flexed with femora held at right angles to body; knee and 

 elbow strongly overlapping when limbs are pressed along side; heel 

 extending to anterior margin of eye when leg is pressed along body. 

 A low patagium present. Chin, vocal pouch, venter, and underside of 



Figure 42. — Sphaenorhynchus dorisae, holotype, UF 8506 (X 2). 



