404 . HYLID&. 
Hyla conirostris, Peters, Mon. Berl. Ac. 1865, p. 464. 
? Scytopis allenii, Cope, Proce. Amer. Philos. Soc. 1869, p. 162. 
Scytopis cryptanthus, Cope, Proc. Ac. Philad. 1874, p. 125. 
Dendrohyas rubra, Tschudi, Batr. p. 74. 
Scytopis x-signatus, Cope, /.¢. p. 124. 
ruber, Cope, J. ¢. 
Tongue subcircular, slightly nicked and free behind. Vomerine 
teeth in two small groups between the choane. 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 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, 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. w-signata), but this coincidence is not constant. Beneath 
whitish, immaculate. Male with an external subgular vocal vesicle. 
From snout to vent 46 millim. 
S. America. 
a,b,c-d. §,2,&hegr. Surinam. 
ef. 9. Demerara. Capt. Friend [P. ]. 
g-h. bY. Demerara. Col. Sabine [P. ]. 
1. Many spec.: 9, Bahia. 
her., & yg. 
k,l mn. 3,9,& Para. 
or 
o-p. Q. Para. R. Graham, Esq. [ P. ]. 
i feode Santarem. H. W. Bates, Esq. | C. ]. 
rs. 9. Santarem. H. A. Wickham, Esq. [C.]. 
tv. 9. Sarayacu, Ecuador . Mr. Buckley fet 
Did, Canelos, Ecuador. Mr. Buckley [C. }. 
Ying s Soriano, Uruguay. — Havers, Esq. [ P.]. 
z-a. 3 Q. Brazil. H. W. Bates, Esq. [C. ]. 
(Ge, ae S. America. Mus. Guilding. 
y. Her. S. America. C. Darwin, Hsq. [P.]. 
111. Hyla funerea. 
Scytopis funereus, Cope, Proc. Ac. Philad. 1874, p. 123. 
Vomerine teeth in short fasciculi between the choane. Head 
