

6. HYLELLA.. 7. NYCTIMANTIS. 421 



loreal region oblique ; tympanum very small, about one fourth the 

 diameter of the eye. Fingers webbed at the base ; toes two-thirds 

 webbed ; disks moderate, those of the fingers equalling the tym- 

 panum in diameter. Skin smooth, belly and lower surface of thighs 

 granulate ; a fold from axilla to groin. Light violet-grey above, 

 light yellow beneath. 

 Tehuantepec. 



5. Hylella bicolor. 



Hyperolius? bicolor, Giinth. Cat. p. 89. 

 Eucnemis bicolor, Gray, Zuol. 3Iisc. p. 5. 

 Hyloinantis fallax, Peters, Mun. Berl. Ac. 1880, p. 224, pi. 1. f. 4. 



Tongue suboval, slightly nicked. Head as broad as long; snout 

 sub triangular, rather prominent, as long as the diameter of the 

 orbit ; canthus rostralis distinct ; loreal region vertical ; interorbital 

 space broader than the upper eyelid ; tympanum distinct, about 

 half the diameter of the eye. Fingers webbed at the base, first 

 shorter than second ; toes nearly entirely webbed ; disks smaller 

 than the tympanum ; subarticular tubercles moderate. The hind 

 limb being carried forwards along the body, the tibio- tarsal articu- 

 lation reaches the tip of the snout, or not quite so far. Skin smooth, 

 belly and lower surface of thighs granulate ; a strong fold across 

 the chest. Bluish above, immaculate or dotted with blackish ; a 

 blackish streak on canthus rostralis and temporal region ; a white 

 band from below the eye to the shoulder, sometimes continued along 

 the side of the body ; beneath whitish, immaculate. Male with an 

 external subgular vocal sac. 



Australia. 



(Type.) 



Hr. Darnel [C.]. 

 G. Krefft, Esq. [0.1 

 G. Krefft, Esq. [C . 

 G. Krefft, Esq. [C.]. 

 Mus. Godeffroy. 



6. Hylella nigropunctata. 



Hyperolius nigropunctatus, Meyer, Mon. Berl. Ac. 1874, p. 139. 



Allied to H. bicolor. Head short ; snout very obtuse ; loreal 

 region high, slightly convex ; tympanum one fourth the diameter 

 of the eye. Tibio-tarsal articulation reaching beyond the tip of 

 the snout. Skin warty. Blue above, dotted with black ; hind 

 limbs with black cross bars ; humerus white ; breast white, belly 

 and lower surface of thighs yellowish. 



Jobi, New Guinea. 



7. NYCTIMANTIS. 



Pupil erect. Tongue subcircular, scarcely free behind, entire. 



