388 HYLID®. 
region, another, very small, on end of coccyx, anda few spots across 
the limbs. The arms are brown, generally white-spotted ; the tibiz 
are white and brown; the thighs not coloured; the lower surfaces 
immaculate. From snout to vent 38 millim. 
S. America. 
a, b. Her. Panama. 
c-e. Q. Surinam. 
am. Cayenne. 
9. 2. Brazil. Dr. Gardiner [C.]. 
h-w. 9. Sarayacu, Ecuador. Mr. Buckley | C. ]. 
Ete Paitanga, Ecuador. Mr. Buckley [C.}. 
1. Hgr ? Dr. A. Giinther P.}. (Type 
of Hyla triangulum.) 
73. Hyla aurantiaca. 
Hyla aurantiaca, Giinth. Cat. p. 106. 
Hyla aurantiaca, Daw/. Rain. p. 28, pl. 9. £3, and Rept. viii. p. 57 ; 
Dum. §& Bibr. p. 610; Burmeist. Erliuter. p. 105; Peters, Mon. 
Berl. Ac. 1871, a 404, & 1872, p. 683. 
lactea, Daud. Rain. p- 30, pl. 10. f. 2, and Rept. viii. p. 62. 
Calamita aurantiacus, Merr, Tent. p. 172. 
lacteus, Mer. 1. ¢. 
Dendrohyas rubra, Tschudi, Baty. p. 74. 
Spheenorhynchus lacteus, Tschudi, Le. p. 71. 
Dryomelictes aurantiacus, Cope, Py oc. Ae. poe. 1865, p. 194. 
Scytopis aurantiacus, Cope, ibid. 1874, p. 12: 
Tongue circular, entire and free behind. Vomerine teeth in two 
short straight series a little behind the level of the choane. 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 pollex ; 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. 
b-c. 9. British Guiana. Mr. Leadbeater [ C. ]. 
eo Demerara. Sir'W. Holmes | P. ]. 
a, Pebas. H. W. Bates, Esq. ©] 
