4. HYLA. 393 



lower legs -with brown cross bands; lower parts whitish, throat 

 brown. Male with two large external vocal sacs, one on each side 

 of the throat. From snout to vent 32 millim. 

 Brazil. 



a. d. Brazil. Dr. A. Giintker [P.]. (Type.) 



82. Hyla parviceps. (Plate XXV. fig. 3.) 



Tongue circular, nicked and free behind. Vomerine teeth in two 

 transverse groups just behind the level of the choanse. Head very 

 small, a little broader than long ; snout as long as the diameter of 

 the eye, elevated, vertically truncate ; canthus rostralis distinct ; 

 loreal region nearly vertical ; eye large ; interorbital space broader 

 than the upper eyelid ; tympanum distinct, one third the diameter 

 of the eye. Three outer fingers one-third webbed ; no projecting 

 rudiment of pollex ; toes nearly entirely webbed ; disks as large as 

 the tympanum ; subarticular tubercles very indistinct. The hind 

 limb being carried forwards along the body, the tibio-tarsal articu- 

 lation marks the front of the eye. Skin smooth, indistinctly 

 granulate on the belly. Olive-brown above, turning to reddish on 

 the back, with darker markings, viz. a broad streak along the 

 canthus rostralis, a vase-shaped marking on the back of the head and 

 nape (the anterior border between the eyes), and two oblique streaks 

 on sacral region ; limbs and sides blackish, with large white spots ; 

 a large white space on throat and front part of bell}- white, the 

 remaining parts blackish. From snout to vent 26 millim. 



Ecuador. 



a. $ . Sarayacu. Mr. Buckley [C.]. 



83. Hyla sordida. 

 Hyla sordida, Peters, Mon. Berl. Ac. 1863, p. 460. 



Tongue round, openly emarginate behind. Vomerine teeth in 

 two small transverse series in the middle between the choanas. 

 Snout rounded, as long as the diameter of the eye ; canthus rostralis 

 rounded : tympanum one third the diameter of the eye. Three 

 outer fingers about two-thirds webbed ; toes nearly entirely webbed ; 

 clicks will developed. Tbe hind limb being carried forwards along 

 the body, tbe tiliio-tarsal artievdation reaches nearly the tip of the 

 snout. Skin smooth above, gramdate beneath. Bluish grey above, 

 when seen with a magnifier finely punctate ; the sides of the body 

 and the hinder side of the thighs finely white- and brown-marbled ; 

 limbs cross-barred ; beneath white. Male with a subgular vocal 

 sac. From snout to vent 34 millim. 



v era<rua. 



