4. HYLA. 308 
7. Hyla indris. 
Hypsiboas indris, Cope, Proc. Amer, Philos. Soc. 1870, p. 555. 
Distinguished from H. crepitans in having shorter hind limbs. 
Surinam. 
8. Hyla circumdata. 
Bee Won circumdatus, Cope, Proc. Amer. Philos. Soc. 1870, p. 555. 
Vomerine series oblique, scarcely curved. Canthus rostralis little 
marked. Tympanum two thirds ocular opening. Palmation of hand 
to middle antepenultimate phalange of longest finger; thumb an 
incurved, unusually elongate, osseous spur. F emoral bands ten, 
blackish, very narrow, and ‘nearly surrounding the leg ; seven broader 
bands across the tibia. 
Differs from H. crepitans in its stouter form and much stouter 
feet and hands and different coloration. 
Brazil. 
9. Hyla rostrata. 
Hyla rostrata, Peters, Mon. Berl. Ac. 1865, p. 466. 
Tongue very large, heart-shaped, broad, slightly nicked behind. 
Vomerine teeth between the very large choane, in two series forming 
a /\. Head longer than broad ; snout flat, prominent, acute, more 
than twice as long as the diameter of the eye; canthus rostralis 
distinct, concave ; loreal region flat; eye very small; tympanum 
distinct, two thirds the diameter of the eye. Fingers with a slight 
rudiment of web; toes nearly entirely webbed; disks of fingers 
well developed, broader than long, a little larger than those of the 
toes; subarticular tubercles well developed ; a prominent tarsal 
fold. The hind limb being carried forwards along the body, the 
tibio-tarsal articulation reaches beyond the tip of the snout. Upper 
surfaces with scattered small tubercles ; a few longitudinal folds on 
the back ; belly separated from the sides of the body and from the 
chest by a prominent fold; lower surfaces granulate. Light brown 
above, with darker markings; a triangular spot between the eyes ; 
limbs cross-barred ; sides of the fitehs with blackish vertical bars ; 
a curved line above the tympanum, black ; yellowish beneath ; throat 
brown. From snout to vent 40 millim. 
Caracas. 
10. Hyla hypselops. 
Ey ncitions hypselops, Cope, Proc. Amer. Philos. Soc. 1870, p. 554. 
Vomerine teeth in two arched series, as in H. erepitans. Tongue 
broad. Head broad and flat; snout rather elongate, acuminate ; 
canthus rostralis distinct, very concave; eye very large; tympanum 
one third the diameter of the orbit. Fingers not Wowbar beyond 
the basis of the proximal phalanges; a projecting rudiment of 
pollex ; digital dilatations small, The hind limb being carried 
28 
