388 HYIIDvE. 



region, another, very small, on end of coccyx, and a few spots across 

 the limbs. The arms are brown, generally white-spotted ; the tibiae 

 are white and brown ; the thighs not coloured ; the lower surfaces 

 immaculate. Prom snout to vent 38 milTim. 

 8. America. 



Dr. Gardiner rC.l. 

 Mr. Buckley [0.'. 

 Mr. Buckley [0.1. 

 Dr. A. Gunther [P.]. (Type 

 of Hyla triangulum.) 



73. Hyla aurantiaca. 



Hyla aurantiaca, Gtinth. Cat. p. 106. 

 Hyla aurantiaca, Dau I. Main. p. 28, pi. 9. f. 3, and JRept. viii. p. 57 ; 



Dttm. Sf- Bihr. p. 610 ; Bunneist. Erlciuter. p. 105 ; Peters, Mon. 



Berl. Ac. 1871, p. 404, & 1872, p. 683. 



lactea, Davd. Rain. p. 30, pi. 10. f. 2, and Sept. viii. p. 62. 



Oalamita aurantiacus, Merr. Tent. p. 172. 



lacteus, Merr. I. c. 



Dendrohyas rubra, Tschudi, Batr, p. 74. 



Spheenorhynchus lacteus, Tschudi, I. c. p. 71. 



Dryomelictes aurantiacus, Cope, Proc. Ac. Philad. 1865, p. 194. 



Soytopis aurantiacus. Cope, MA. 1874, p. 123. 



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

 short straight series a little behind the level of the choanse. Head 

 small ; snout pointed, projecting a good deal beyond the mouth- 

 opening, once and a half as long as the diameter of the eye ; canthus 

 rostralis angular ; loreal region vertical ;' eyes not very prominent ; 

 interorbital space much broader than the upper eyelid ; tympanum 

 moderately distinct, about half the diameter of the eye. Fingers 

 two-thirds webbed ; no projecting rudiment of poUex; toes entirely 

 webbed ; disks as large as the tympanum ; subarticular tubercles 

 moderate ; a slight fold along the inner edge of the tarsus. The 

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

 articulation marks the eye. Skin smooth or minutely granulate 

 above ; belly and lower surface of thighs granulate ; a strong fold 

 across the chest; a short cutaneous flap on each side of the vent; a 

 distinct fold along the outer edge of the tarsus. Uniform yellowish 

 or pinkish ; a reddish-brown streak along the canthus rostralis. 

 From snout to vent 43 millim. 



Guianas; Brazil. 



a.?. Demerara. Sir W. Holmes [P.]. 



6-c. ?. British Guiana. Mr. Leadbeater 10.1. 



A. S . -Pehas. H. W, Bates, Esq. [O.]. 



