4. HYLA. 413 



127. Hyla nigi-ofrenata. (Plate XXVI. fig. 2.) 

 Hyla nigrofrenata, G'dnth. Ann. ^' Mag. N. H. (3) xx. 1867, p. 56. 



Tongue suboval, slightly nicked and free behind. Vomerine teeth 

 in two transverse groups on a level with the front part of the 

 choanae ; latter vertically elliptic. Habit slender. Head longer 

 than broad ; snout acuminate ; the distance between the eye and 

 the nostril equals the diameter of the former ; canthus rostralis 

 distinct ; loreal region oblique, slightly concave ; interorbital space 

 a little broader than the upper eyelid ; tympanum very distinct, 

 two thirds the diameter of the eye. Fingers free, first extending 

 slightly beyond second ; no distinct rudiment of pollex ; toes 

 slender, two-thirds webbed ; disks very small ; subarticular tubercles 

 very prominent : two metatarsal tubercles, outer very small ; a dis- 

 tinct fold along the inner edge of the tarsus. The hind limb being 

 carried forwards along the body, the tibio-tarsal articulation reaches 

 far beyond the tip of the snout- Skin smooth, granulate on the 

 belly and under the thighs. Light olive above ; a broad black band 

 on each side of the head, through the eye, followed by a black spot ; 

 a blackish band across the back of the wrist ; sides of hind limbs 

 with a blackish line ; hinder side of thighs marbled with blackish ; 

 beneath whitish, immaculate. Erom snout to vent 41 millim. 



N. Australia. 



a. 2 . Cape York. Hi-. Darnel [0.1 ) t, 



h. $. Cape York. " ^ [Types. 



128. Hyla affinis. (Plate XXVI. fig. 3.) 



Litoria freycineti, Gimth, Cat. p. 97. 

 Pelodytes affinis, Gray, Zool. Misc. p. -56. 



Habit slender. Tongue subcircular, slightly nicked and free be- 

 hind. Vomerine teeth in two oblique groups between the choanfe ; 

 latter vertically elliptic. Head longer than broad, resembling that 

 of Rana ar/iUs ; snout acuminate, rather prominent, once and a half 

 as long as the diameter of the eye ; canthus rostralis distinct ; loreal 

 region slightly concave ; interorbital space as broad as the upper 

 eyelid ; tympanum very distinct, two thirds the diameter of the eye. 

 Fingers slender, free, first a little longer than second ; no distinct 

 rudiment of pollex ; toes slender, somewhat more than half webbed ; 

 disks very small ; subarticular tubercles small, but very prominent ; 

 two metatarsal tubercles, outer very small ; a distinct fold along the 

 inner edge of the tarsus. The hind Hmb being carried forwards 

 along the body, the tibio-tarsal articulation reaches the nostril or 

 the tip of the snout. Skin smooth above ; belly and lower surface 

 of thighs granulate. Erown above ; loreal and temporal regions 

 blackish ; hinder side of thighs black- and white-marbled ; heneath 

 whitish, immaculate; the male's throat brown. Male with an in- 

 ternal subgular vocal sac. From snout to vent 35 millim. 



N. Australia. 



a. S • Port Essiugton. (Type.) 



h. 2 ■ Rockhampton. 



