404 H5TLIDJ2. 



Hyla conirostris, Peters, Mnn. Berl. Ac. 1803, p. 4(54. 



? Scytopis allenii, Cope, Proc. Amer. PhUos. Soc. 1809, p. 162. 



Scytopis cryptauthus, Cope, Proc. Ac. Philad. 1874, p. 123. 



Dendrohyas rubra, Tschudi, Batr. p. 74. 



Scytopis x-signatus, Cope, 1. c. p. 124. 



ruber, Cope, I. c. 



Tongue subcircular, slightly nicked and free behind. Vomerine 

 teeth in two small groups between the choanse. Head rather 

 depressed, as long as broad ; snout rounded, once and a half or once 

 and two thirds as long as the diameter of the eye ; canthus rostralis 

 very indistinct ; loreal region not concave ; interorbital space gene- 

 rally broader than the upper eyelid ; tympanum very distinct, about 

 half the diameter of the eye. Fingers free ; no projecting rudiment 

 of pollex ; toes three-fourths webbed ; disks smaller than the tym- 

 panum ; subarticular tubercles moderate. The hind limb being 

 carried forwards along tbe body, the tibio-tarsal articulation marks 

 the eye, or between the latter aud the tip of the snout. Upper 

 surfaces smooth, or covered with small tubercles ; lower surfaces 

 granulate ; a strong fold across the chest. Coloration very variable. 

 Brownish above, immaculate, or dotted, variegated, or longitudinally 

 striped with darker ; frequently a light streak along each side of the 

 back, beginning from the eye, or two curved dark markings on the 

 front of the back, forming an X the branches of which are separated ; 

 the sides of the thighs may be immaculate, or black- and white- 

 marbled. The uniform thighs correspond generally with the streaks 

 on the back {Hyla rubra), and the marbled thighs with the 

 X-mark (H. x-signata), but this coincidence is not constant. Beneath 

 whitish, immaculate. Male with an external subgular vocal vesicle. 

 From snout to vent 40 millim. 



S. America. 



a, b, c-d. (5 , 5 , & hgr. Surinam. 



e-f. §. Demerara. Capt. Friend [P.]. 



g-h. 6 2- Demerara. Col. Sabine [P.]. 



i. Many spec. : § , Bahia. 



hgr., & yg. 



/,', /, in, n. J , 5 , & Para. 



bgr. 



o-p. 2 • Para. R. Graham, Esq. [P.l. 



q. 2- Santarem. H. W.Bates, Esq. [C.]. 



r-s. 2 ■ Santarem. H. A. Wickham, Esq. [C.]. 



t-v. 2 • Sarayacu, Ecuador Mr. Buckley [0.1. 



iv, x. 2 ■ Canelos, Ecuador. Mr. Buckley [C.J. /, 



-#.. 6 ~ ■Soriano, Uruguay. — Havorc , Eoq. [P. j-. ^A ^a-^aa 



z-a.(S2- Brazil. PI. W.Bates, Esq. [C.]. 



(3. 2 • S, America. Mus. Guilding. 



y. Hgr. S. America. C. Darwin, Esq. [P.]. 



111. Hyla funerea. 



Scytopis funereus, Cope, Proc. Ac. Philad. 1874, p. 123. 

 Vomerine teeth in short fasciculi between the choanae. Head 





