154 BULLETIN 160, UNITED STATES NATIONAL MUSEUM 



way length of body where it either disappears or is broken 

 up on hinder half of fiank into a series of spots; upper lip 

 with dark gray stripe, edged above, or above and below 

 with white; outer edge of tibia with lengthwise light-edged 

 dark streaks or with dark spots; cross bands on limbs indis- 

 tinct, or incomplete (small spots) , or well developed; a dark 

 spot on inner side of forearm; underparts whitish; lingers 

 united at base by dermal fringe or vestigial web; first finger 

 shorter than second; adhesive disks of fingers somewhat 

 larger than those of toes and about one-half as large as 

 tympanum; toes two-thirds webbed; tarsal fold weakly or 

 strongly developed; inner metatarsal tubercle large; outer 

 one small and conical, or flat, or absent; distinct subarticular 

 tubercles; the hind limb being carried forward along the 

 body, the tibio-tarsal joint reaches slightly beyond or to tip 

 of snout; vomerine teeth in two short, somewhat oblique or 

 transverse rows between the choanae; transverse diameter of 

 tympanum generally slightly more than one-half diameter 

 of eye, rarely less than one-half; a dermal fold extends above 

 and downward behind tympanum to axilla; tongue large, 

 broad, and feebly notched behind; canthus rostralis distinct; 

 loreal region sloping more or less obliquely; throat, abdomen, 

 and under surface of thighs granulated; a dermal fold across 



chest; head-and-body length, 30-50 mm gracilipes (p. 168) 



8. Vomerine teeth on a level with or slightly behind posterior 



edge of choanae ; tarsal fold absent or indistinct 9 



Vomerine teeth in elongate clusters between the choanae; a dis- 

 tinct tarsal fold in adults, indistinct and possibly absent in 



young 10 



9. ^Coloration of upperparts olive or brownish, generally with large, 

 subsj^mmetrical, dark blotches, more or less confluent into a 

 pair of longitudinal bands, and sharply defined against a 

 lighter lateral band that extends from upper eyelid to loin; 

 a large dark blotch extending from interorbital region back- 

 ward upon shoulders generally present; a broad black band 

 extends obliquely downward behind tympanum to beyond 

 level of fore limb; warts often black; limbs may or may not 

 be broadly crossbarred; underparts generally uniform whit- 

 ish; transverse diameter of tympanum one-half (rarely one- 

 third) diameter of eye, and overhung by a dermal fold; 

 vomerine teeth on a level with hinder edge of choanae, form- 

 ing either transverse or slightly arched series, or a very open 

 chevron, the apex of which is directed posteriorly; fronto- 

 parietal bones in contact medially, leaving no fontanelle; 

 fingers one-fourth webbed (fig. 19, c) ; no projecting rudi- 

 ment of poUex; adhesive disks of fingers slightly larger than 

 those of toes, and equal in area to that of tympanum; the 

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

 tarsal joint reaches to but not beyond eye; toes two-thirds 

 webbed (fig. 20, d), the membrane reaching to adhesive disks 

 of third and fifth toes, but deeply incised, and leaving free the 

 penultimate phalanx of fourth; tarsal fold absent or indis- 

 tinct; tongue broad, notched behind; canthus rostralis 

 rounded; loreal region oblique; skin of upperparts and sides 

 covered with large round flat warts; brownish black minute 



