3. RHACOPHORIJS. 81 



thirds webbed ; disks larger than the tympanum ; subarticular tu- 

 bercles moderate ; a small inner metatarsal tubercle. The hind limb 

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

 reaches the eye. Skin smooth, granular on the belly and under the 

 thighs ; a fold above the tympanum. Greyish above, forehead and 

 sides of the body lighter ; legs irregularly cross-barred ; hinder side 

 of thighs colourless ; throat brown-spotted. Male with an internal 

 vocal sac. 

 Darjeeliug. 



a-b. (S $ . Darjeeling. T. C. Jerdon, Esq. [P.]. (Types.) 



13. Rliacophorus dubius. (Plate YIII. fig, 2.) 

 Ixalus jerdonii, Giinth. Proc. Zool. Soc. 1875, p. 575. 



Vomerine teeth ? Tongue with a free conical papilla in the 



middle. Snout rounded ; canthus rostralis distinct ; loreal region 

 slightly concave ; nostril equally distant from the eye and the tip of 

 the snout ; interorbital space broader than the uj)per eyelid ; tym- 

 panum one third the width of the eye. Pingers slightly, toes two- 

 thirds webbed ; disks of fingers as large as the tympanum, of toes 

 rather smaller ; subarticular tubercles well developed ; a small inner 

 metatarsal tubercle. The hind limb being carried forwards along 

 the body, the tibio-tarsal articulation reaches the eye. Skin smooth 

 above, granular beneath ; a fold from the eye to the shoulder. Red- 

 dish brown above, with indistinct markings ; thighs colourless in 

 front and behind. 



Though the single specimen exhibits no vomerine teeth, I am in- 

 clined to think that this is accidental, and that therefore this species 

 must be referred to Rhacojphorus. 



Darjeeling. 



a. $ . Daijeeliug. T. 0. Jerdon, Esq. [P.]. (Type o 



Ixalus jerdonii.^ 



11. Rhacophorus nanus. 



Polypedates nanus, Giinth. Proc. Zool. Soc. 1868, p. 485, pi. 39. f. 3. 

 Ixalus macropus, Giinth. I. c. p. 484, pi. 39. f. 4. 



Vomerine teeth in two small groups between the choans. A 

 conical papilla in the middle of the tongue. Snout rounded ; canthus 

 rostralis angular ; loreal region slightly concave ; nostril nearer the 

 tip of the snout than the eye ; interorbital space scarcely broader 

 than the upper eyelid ; tympanum one third the width of the eye. 

 Fingers slightly webbed, toes half webbed in the young, generally 

 nearly entirely in the adult; disks of fingers and toes as large 

 as the tympanum ; subarticular tubercles moderate ; a small 

 inner metatarsal tubercle. The hind limb being carried forwards 



G 



