404 HYLIDJE. 



Hyla conirostris, Peters, Mon. Berl. Ac. 1863, p. 464. 



? Scytopis allenii, Cope, Proc. Amer. Philos. Soc. 1869, p. 162. 



Scytopis cryptanthus, Cope, Proc. Ac. Phiiad. 1874, p. 123. 



Dendi-obyas rubra, Tschudi, Batr. p. 74. 



Scytopis x-aignatus. Cope, I. o. p. 124. 



ruber, Cope, I. c. 



Tongue subciroular, 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 aa 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 the body, the tibio-tarsal articulation marks 

 the eye, or between the latter and 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, boginuing 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 

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

 From snout to vent 46 millim. 



S. America. 



a, h, c-d. c? , $ , & hgr. Surinam. 



e-f. 5 . Demerara. Oapt. Friend [P.]. 



g-h. (S ? • Demerara. Col. Sabine [P.]. 



i. Many spec. : J , Bahia. 



bgr., & yg. 



k,l,m,n. (S ,2i Sc Para. 



hgr. 



u-p. 5 . Para. R. Graham, Esq. [P.]. 



?. ■ 2 . Sautarem. H. W. Bates, Esq. [0.]. 



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



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



w, X. 2 . Caneloa, Ecuador. Mr. Buckley [0.1. 



y- 6 ■ Soriano, Uruguay. — Havers, Esq. [P.]. 



z-a. (5'2- Brazil. H. W.Bates, Esq. [0.]. 



^. 2 ■ S. America. Mus. Guilding. 



y- Hgr. S. America. 0. Darwin, Esq. [P.]. 



111. Hyla funerea. 



Scytopis fimereus. Cope, Proc. Ac. Phiiad. 1874, p. 123. 

 Vomerine teeth in short fasciculi between the choanse. Head 



