94 BULLETIN 160, UNITED STATES NATIONAL MUSEUM 



interorbital space; transverse diameter of tympanum occasion- 

 ally less than one-half, always less than two-thirds, that of the 

 eye, and overhung by a dermal fold that extends from eye 

 backward over tympanum to angle of mouth; vomerine teeth 

 in adults in two essentially transverse clusters between or 

 nearly on a line with posterior margins of choanae [teeth 

 behind but within level of choanae in young]; tongue narrow, 

 elongate; skin on abdomen smooth; circular abdominal disk 

 present; under surfaces of thighs granulated; a transverse 

 intratympanic dorsal dermal fold; skin of upperparts and top 

 of head either shagreen or with small scattered tubercles; color 

 of upperparts brown or gray, with dark brown spots; sides 

 with light-margined black spots; hinder surface of thighs with 

 closely approximated or with large coalesced black markings; 

 upper surface of tarsus and foot with black blotches; lower 

 fore limb with transverse black bars; abdominal disk yellowish, 

 with faint vermiculations; throat black [in young or immature 

 individuals, the color surrounding elongated spots on top of 

 head and middle of back is bright salmon pink or pale yellow; 

 a broad transverse pink or pale yellow band with several dark 

 spots crosses back behind level of origin of fore limbs; an 

 aggregation of smaller dark brown spots in sacral region; 

 small irregular dark spots on top and sides of head; brown 

 spots below tympanum, eye, and loreal region]; head-and-body 

 length, 64.5 to 75 mm augusti (p. 100) 



4. Terminal disks distinctly enlarged or dilated, those of fingers 2 



and 3 about twice the width of corresponding digit 5 



Terminal disks less noticeablj' dilated, generally rounded or ball- 

 like, rarely flattened, and those of fingers scarcely larger than 

 those of toes 6 



6. Terminal disks of fingers 2, 3, and 4 fully twice the width of 

 corresponding digit, subtriangular in outline, flattened, and 

 truncated distaUy, their diameter nearly equaling that of the 

 tympanum; first finger shorter than second; large subarticular 

 tubercles at ends of metapodials; toes free or with vestiges of 

 web at base; third toe as long as or only reaching to disk of 

 fifth; terminal disks of toes flattened and dilated, but notice- 

 ably smaller than those of fingers; subarticular tubercles 

 moderately large, very prominent, and not continued back- 

 ward on plantar surface; two small metatarsal tubercles, the 

 inner larger than outer; tarsal fold indistinct; the hind limb 

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

 reaches to or beyond the tip of the snout; vomerine teeth in 

 two short transverse groups behind and well within the level of 

 inner margins of choanae, the distance between their outer 

 edges being equivalent to slightly more than one-half the 

 interval between the choanae; tongue subcordif orm ; snout 

 depressed, rather short, and acuminate; canthus rostralis fairly 

 distinct; loreal region rather oblique, very slightly concave; 

 upper eyelid wider than interorbital space; tympanum very 

 distinct, one-half to two-thirds diameter of eye, depending 

 upon the sex; a dermal fold above tympanum; skin of 

 . upperparts either smooth or sparsely studded with small tuber- 

 cles and glandular dermal folds; an indistinct fine vertebral 

 dermal ridge from muzzle to vent; sides areolate; underparts 



