394 HYLID. 
84. Hyla nigripes. 
Hyla nigripes, Cope, Jow'n, Ac, Philad. (un. 8.) vill. 1876, p. 104, pl. 23. 
food 
Tongue subcircular, openly emarginate and slightly free behind. 
Vomerine teeth in two short transverse series between the choanz. 
Head moderate, as long as broad; snout rounded, slightly longer 
than the diameter of the orbit; canthus rostralis distinct ; loreal 
region oblique, slightly concave ; interorbital space slightly broader 
than the upper eyelid; tympanum distinct, nearly half the diameter 
of the eye. ‘Three outer fingers nearly half webbed; no projecting 
rudiment of pollex; toes three-fourths webbed ; disks smaller than 
the tympanum ; subarticular tubercles little developed. The hind 
limb being carried forwards along the body, the tibio-tarsal articu- 
Jation reaches between the eye and the tip of the snout. Skin 
smooth above, granulate beneath. Dark olive-brown above; sides 
of body finely black- and white-marbled ; greyish beneath. From 
snout to vent 30 millim. 
Costa Rica. 
a. 9. Costa Rica. 
85. Hyla palliata. 
Hyla palliata, Cope, Proc. Ac. Philad. 1863, p. 47. 
Tongue oval, nicked. Vomerine teeth in a short uninterrupted 
series behind the posterior margin of the choanz. Snout pro- 
minent, truncate ; loreal region not concave; the distance from the 
nostril to the orbit equals the diameter of the latter, and is less than 
the width of the interorbital space; tympanum one sixth the size of 
the eye. Three outer fingers one-third webbed ; a distinct rudiment 
of pollex; toes webbed to penultimate phalange. The hind limb 
being carried forwards along the body, the tibio-tarsal articulation 
marks the middle of the orbit. Skin smooth above, not granulated 
in the gular region. Extremities, lower surfaces, loreal and labial 
regions greyish brown; upper surface of head and body pale 
ochreous, abruptly separated from the other colour all round. 
Male with a vocal sac. From snout to vent 19 millim. 
Paraguay. 
86. Hyla polytenia. 
Hyla rubicundula, (ron Reinh. § Liitk.) Giinth. Proc. Zool. Soc. 1868, 
p. 489, pl. 40. f. 3. 
—— polytzenia, Cope, Proc. Amer. Philos. Soc. 1869, p. 164. 
striata, Peters, Mon. Berl. Ac. 1872, p. 681. 
Tongue subcircular, entire, scarcely free behind. Vomerine teeth 
in two small groups behind the level of the choanze. Head mode- 
rate, a little broader than long; snout rounded, as long as the 
diameter of the orbit ; canthus rostralis angular ; loreal region not 
very oblique, concave ; interorbital space broader than the upper 
eyelid; tympanum distinct, one third the diameter of the eye. 
