96 BULLETIN 160, UNITED STATES NATIONAL MUSEUM 



almost within level of inner margins of choanae, and separated 

 medially by very narrow interval; tympanum very distinct, 

 its horizontal diameter generally about two-thirds diameter 

 of eye, rarely in very large individuals more than one-third 

 but less than one-half diameter of eye; tympanum overhung 

 by a dermal fold; snout acuminate; can thus rostralis distinct; 

 loreal region oblique and concave; upper eyelid wider than 

 interorbital space; nostrils lateral and near end of snout, 

 their distance from eye equal to or less than diameter of latter; 

 skin of upperparts generally rugose and tuberculate, rarely 

 smooth, but always with short interrupted glandular dermal 

 folds along lateral borders; folds are most conspicuous in 

 intratympanic region and on back; a distinct abdominal disk; 

 hinder border of belly areolate; under surfaces of thighs 

 strongly granular; a more or less distinct continuous or 

 interrupted lateral dermal fold; a continuous or discontin- 

 uous oblique dermal ridge at level of quadrate cartilage; 

 ground color of upperparts brown, with scattered spots of 

 yellowish, and mottled or blotched with dark brown or black; 

 white or yellowish ground color of sides vermiculated or vari- 

 egated with blackish brown; darker brown ground color of 

 posterior surfaces of thighs vermiculated with white or yel- 

 low; limbs with more or less distinct cross bands, the band- 

 ing extending upon fingers and toes; oblique dark brown 

 bands, separated by narrower light spaces, extend upward 

 across lower and upper lips to eye and loreal region; the two 

 below eye widest at lip margin, another one nearer the nos- 

 tril than the ej^e, and a somewhat larger dark spot bisected 

 by two narrow vertical light lines on end of snout; anterior 

 rim of orbit margined with black; a light brown or yellow 

 loreal spot; an interorbital dark band behind light-colored 

 snout; a black streak extends backward from eye over tym- 

 panum and downward to insertion of fore limb; dark streak 

 along canthus rostralis present or absent; underparts white; 

 throat marbled with brown; head-and-body length, 43 to 



65 mm rugulosus (p. 116) 



Toes free, not united at base by vestigial web, and without 



obvious marginal dermal fringes 7 



7. A broad longitudinal mid-dorsal purplish band extending from 

 snout to vent between a pair of undulating medially converg- 

 ing linear dermal ridges, each of which extends from supra- 

 ciliary to end of sacral diapophysis; remainder of upperparts 

 light mauve; linear dermal ridges, stripe along canthus ros- 

 tralis extending backward above and behind the tympanum, 

 an oval spot on each side of pelvis, and some small irregular 

 spots on sides of body, black; upper lip and posterior surfaces 

 of thighs powdered with gray; fore and hind limbs cross- 

 banded; underparts white, immaculate; first finger longer 

 than or subequal with second; subarticular tubercles con- 

 tinued backward on inferior surfaces of metacarpals; two 

 palmar callosities; disks of fingers small; toes not united by 

 web at base; subarticular or supernumerary tubercles con- 

 tinued backward on plantar surface; two metatarsal tubercles, 

 the inner one the largest; tarsal fold indistinct; the hind 

 limb being carried forward along the body, the tibio-tarsal 



