Ay HY TAs 365 
IIyla tibiatrix, Zawr. 1. ec. p. 84; Daud. Rain. p. 36. 
Rana zebra, var. venulosa, Shaw, Zool, ii. p. 124. 
—— meriana, Shaw, /. e. p. 185. 
Calamita boans, Schneid, Hist. Amph. p. 164; Merr. Tent. p. 17: 
Hyla venulosa, Daud. Rain. p. 35, pl. 13, and Rept. viii. p. oe 
‘Gravenh. Delic. p. 24; Dum. § Bibr. p. 560; Guichen. Rept. in 
Casteln. Anim. nouv. ou rares, p. 84; Bur inetster, Erliuter. p. 106; 
Steondachn. Novara, Amph. pias, pl. a. 1.18; Peters, Mon. Berl, 
Ac. 1872, p. 219, & 1873, p. 613. 
zonata, Spix, ee Nov. Test. Ran. m Al pl. Lash. 
bufonia, Spiz,.l.c. p. 42, pl. 12. f 2 
Hypsiboas venulosa, Wa gl. Syst. Amph. p. 201; Tschudi, Batr. p. 72. 
Auletris tibiatrix, Wagl. 1. c. 
Dendrohyas tibiatrix, Tschudi, Batr. p. 74. 
Hyla vermiculata, aa § Bibr. p. 563. 
Scytopis hebes, Cope, Proce. Ac. Philad. 1862, p. 354. 
Acrodytes ventlosus, Cope, Nat. Hist. Rev. 1865, p. 109. 
Scytopis venulosus, Cope, Journ. Ac. Philad. (2) vi. 1866, p. 85. 
Tongue circular, entire or indistinctly nicked, and slightly free 
behind. Vomerine teeth on a level with the hinder edge of the 
choane, forming generally a straight interrupted series, sometimes 
a very open chevron, the point of which is directed forwards. Head 
moderate, broader than long; snout short, rounded, a little longer 
than the diameter of the orbit; canthus rostralis rounded; loreal 
region concave; interorbital space as broad as the upper eyelid; 
tympanum very distinct, about two thirds the diameter of the eye. 
Fingers one-third or one-fourth webbed ; no projecting rudiment 
of pollex ; toes three-fourths webbed ; disks as large as, or nearly as 
large as, the tympanum; subarticular tubercles very prominent ; 
no tarsal fold. The hind limb being carried forwards along the 
body, the tibio-tarsal articulation marks the tympanum or the eye. 
Upper sufaces generally warty ; a fold above the tympanum ; in old 
specimens, the derm of the region limited by this fold frequently 
thickened into a parotoid ; lower surfaces granulate. Brown above, 
spotted or marbled with darker; hind limbs with broad dark cross 
bars ; lower surfaces whitish, immaculate. Male with two very 
large external vocal vesicles, each being situated behind the angle of 
‘the mouth; during the breeding-season the inner side of the first 
finger covered with brown rugosities. From snout to vent 93 
- millim. 
S. America. 
a. 2. Berbice. 
b-c. 2 Better Hope, British Rev. W.T. Turner [C. ]. 
Guiana. 
di: Os. British Guiana. 
eng: Surinam. Herr Kappler [C.]. 
| PU Rae Cayenne. 
Or Para. R. Graham, Esq. [P.]. 
i-k. 3. Santarem. H.W. Bates, Esq. | C. ]. 
1. Her. Amazons. Dr. Giinther [P. j. 
m. 2. Pernambuco. Sir A. Smith [ Py ahs 
Ny. Skeleton. S. America. 
