= 
4, HYLA. 405 
oval; snout narrowed, as long as the diameter of theeye; tympanum 
half the diameter of the eye. Fingers free; no projecting rudiment 
of pollex; longest toe webbed to base of penultimate phalange. The 
hind limb being carried forwards along the body, the tibio-tarsal 
articulation reaches considerably beyond the tip of the snout. Back 
with a very few scattered elevations ; areolations of belly fine. Dark 
brown or blackish, with a broad black cross band between the eyes 
and several across arm, femur, tibia, and tarsus; femora uniform 
behind ; a few black spots on posterior part of the side ; throat and > 
breast black-punctated. From snout to vent 44 millim. 
Moyobamba, Peru. 
112. Hyla rubella. 
Hyla rubella, Giinth. Cat. p. 111. 
Hyla rubella, Gray, Zool. Misc. p. 57 ; Keferst, Gotting. Nachr. 1867, 
p- 857, and Arch. f. Naturg. 1868, p. 285, pl. 8. f. 29. 
Tongue large, oval, entire and free behind. Vomerine teeth in 
two groups close together behind the level of the choane. Head small, 
as long as broad; snout rounded, as long as the diameter of the eye; 
canthus rostralis obtuse ; loreal region nearly vertical ; interorbital 
space as broad as, or a little broader than, the upper eyelid; tympanum 
distinct, about half the diameter of the eye. Fingers and toes very 
variable in shape ; in some specimens they are moderate, with rather 
small disks, in others short and stout and with very large dilations ; 
but as some specimens exhibit an intermediate structure, it 1s impos- 
sible to attach a specific importance to this character, though, when 
the two extreme forms are placed side by side, the difference is a 
very striking one. Fingers free or with a slight rudiment of web ; 
no distinct rudiment of pollex ; toes two-thirds or three-fourths 
webbed ; subarticular tubercles well developed; a distinct fold along 
the inner edge of the tarsus. The hind limb being carried forwards 
along the body, the tibio-tarsal articulation reaches the shoulder or 
the tympanum. Skin smooth above, granulate beneath; a strong 
fold across the chest. Greyish or reddish brown above, uniform or 
speckled with darker ; a dark band on the side of the head and body ; 
- beneath whitish, immaculate. Male with a brown external subgular 
vocal sac; during the breeding-season the inner side of the first 
finger is covered with brown rugosities. From snout to vent 
39 millim. 
Australia. 
a, b-c. Q. Port Essington. Mr. Gould [C.]. (Types.) 
Gee: Nicol Bay. M. Du Boulay [C.]. 
ef,g. 3. N. Australia. +. Kretit, Esq. [ P. ]. 
h-v. SC. Port Denison. G. Krefft, Esq. | PJ]. 
heals. OD: Rockhampton. Mus. Godeftroy. 
mp. 2. Peak Downs. Mus. Godeffroy. 
g. Her. 2 Abrolhos. Dr. A. Giinther [P.]. 
