4. HTLA. 405 



oval ; snout narrowed, as long as the diameter of the eye : 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 bell)- 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, Guntli. Cat. p. 111. 

 Hyla rubella, Gray, Zool. Misc. p. 57 ; Keferst. Gotting. Nachr. 1867, 

 p. 357, and Arc'h.f. XatAirg. 1868, p. 283, pi. 8. f. 29. 



Tongue large, oval, entire and free behind. Vomerine teeth in 

 two groups close together behind the level of the choanae. 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 structui'e, it is 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 

 w'ebbed ; 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. 



Mr. Gould [C.]. (Types.) 



M. Du Boulav [C.]. 



G. Kretft, Esq. [P.]. 



G. Krefft, Esq. [P.]. 



Mas. GodefiVoy. 



Mus. Godeffroy. 



Dr. A. Giinther [P.]. 



