a 
4, HYLA, 377 
more acuminate; the tongue is more elongate, and the vomerine 
teeth are more anterior. 
Paraguay ; (8. Brazil). 
Cennere 
53. Hyla carolinensis. 
Hyla carolinensis, Giinth, Cat. p. 105. 
Catesby, Nat. Hist. Carol. ii. pl. 71. 
Hyla viridis, var. B, Law. Syn. Rept. p. 33. 
Calamita carolinensis, Penn. Zool. Arct. ii. p. 331. 
cinereus, Schneid. Hist. Amph. p. 174. 
Rana bilineata, Shaw, Zool. iii. p. 136. 
Hyla lateralis, Daud. Rain. p. 16, pl. 2. f.1; Leconte, Ann. Lyc. New 
York, i. p. 278; Harl. Journ. Ac. Philad. v. p. 841; Dum. § Bibr. 
_ _ p. 587; Leconte, Proc. Ac. Philad. 1855, p. 428. 
viridis, Holb. N.-Amer. Herp. iv. pl. 29. 
—— semifasciata, Hallow. Proc. Ac. Philad. 1856, p. 307, 
Tongue subcircular, entire or slightly nicked, and free behind. 
Vomerine teeth in two small groups on a level with the hinder edge 
of the choanee. Head rather small, about as long as broad; snout 
rounded, about once and a half as long as the diameter of the eye ; 
canthus rostralis distinct ; loreal region not very oblique; inter- 
orbital space a little broader than the upper eyelid ; tympanum very 
distinct, about two thirds the diameter of the eye. Fingers one- 
third webbed; no projecting rudiment of pollex ; toes three-fourths 
webbed ; disks smaller than the tympanum ; subarticular tubercles 
moderate ; a distinct fold along the inner edge of the tarsus. The 
hind limb being carried forwards along the body, the tibio-tarsal 
articulation reaches the eye or slightly beyond. Skin smooth or 
minutely granulate above, granulate beneath. Greenish above, 
immaculate; a white streak on the upper lip, extending along the 
sides of the body; another along the inner side of the tibia. 
Male with an external subgular vocal sac. From snout to vent 
50 miliim. 
8.E. North America. 
a-b, &. New Orleans, 
- ee, f & her. . N. America. 
64, Hyla uranochroa. 
Hyla uranochroa, Cope, Journ, Ac. Philad. (n, 8.) viii. p. 103, pl. 27. 
‘eee 
Tongue circular, slightly nicked, and scarcely free behind. Vo- 
merine teeth in two small groups between the choane. Head 
moderate, as long as broad; snout rounded, about once and a 
half as long as the diameter of the eye; canthus rostralis dis- 
tinct ; loreal region slightly oblique; interorbital space broader 
than the upper eyelid; tympanum distinct, somewhat more than 
half the diameter of the eye. Fingers one-third webbed; no 
projecting rudiment of pollex; toes three-fourths webbed; disks 
smaller than the tympanum ; subarticular tubercles moderate. The 
