1920.] G. A. BouLEXGER : Frogs of (he Genus Rana. 93 



Foot .. .. 43 38 42 39 39 38 56 54 56 55 54 48 4S 



Third toe .. .. 24 20 24 21 21 20 29 28 30 30 28 27 26 



Fourth toe . . ..36 32 35 3^ 32 }o 46 45 46 47 43 41 40 



Fifth toe .. .. 27 23 27 25 25 21 34 35 34 34 32 31 30 



Habitat. Yunnan fii, Yunnan. Tj'pes in the British Museum. 



This species is very similar to R. andersonii, Blgr., Ijut readily 

 distinguished b}' the absence of discs to the fingers and toes. It 

 is truly a link between the subgenera Rana and Hylorana, and I 

 cannot doubt that a direct genetic relationship exists between 

 these two allied species ; this remark applies also to R. pleii- 

 raden and R. adeiwpleura. and points to the polyphyletic origin 

 of the subgenus Hylorana, which appears to be made up of 

 specialized forms leading to scansorial types all derived from the 

 Ranac typicae. 



43. Rana japonica. 



Rana temporaria {non Linn,), Schleg,. Faun. Japoii., Rept. p. log, nl. ij, 



fig. 2 (1S38). 

 Rana temporaria, part., Middend., Sibir. Reis. II, p. 247, pi. xxvi, figs. 2 — 4 



(iSs.^i; Dum. et Bibr., Erp. Gen. VIII, p. 358 (1841). 

 Rana temporaria, \av. japonica, Giimh., Cat. Batr. Sal. p. 17 (1858). 

 Rana silvafica, part., Hallow., Proc. Ac. Philad. i860, p. 500; GOnth., 



Rept. Brit.Ind. p 409 Ci864)j Camerano, AttiiAcc^ Torin. XI\', 1879, 



p. 876. __' ' ■ 



Rana mtddendorffii, Stecnstr., Vtd. Meddel. 1869, p. 18, fig. 

 Rana japonica, Bouleng., Bull. Soc. ZooL. France, 1879, p. igo, and Cat. 



Batr. Eciiud. p. 47 (1882),- Boettg , Ber. Offenb. Ver. Nat. 1888. 



p. 96 ; Bouleng., Proc. Zool. Soc. 1891, p. 610; Boettg. Ber. Offenh. 



Ver. Nat. 1895, p. 102; Werner, Abh. Bay. A/c. ,XXII," 1904, p." 3^8; 



Stejneg., Herp. "j^ap. p. 107, fig (1907). 

 Rana japonica. var. ornativentris. Werner, t. c. p. 383. 

 Rana tsiishimensis, .Stejneg. op. cit. p. [16, fig. 



Vomerine teeth in oblique groups or short series between the 

 choanae or behind the level of their posterior borders. 



Head rather depressed, as long as broad or a little longer or 

 a little broader; snout rounded or more or less acuminate, more 

 or less projecting beyond the mouth, as long as or little longer 

 than the eye ; canthus rostralis distinct ; loreal region oblique, 

 feebly concave; nostril equidistant from the eye and from the tip 

 of the snout, or a little nearer the latter; distance between the 

 nostrils equal to or a little greater than the interorbital width, 

 which equals § to J, rareh- once, that of the upper e3'elid and is 

 usually less than the diameter of the tympanum; t3'mpanum 

 very distinct, ? to ;! the diameter of the ej^e and 2 to 3 times its 

 distance from the latter. 



Fingers moderate or rather long, obtuse, first as long as or 

 longer than the second, third longer than the snout ; subarticular 

 tubercles rather large, very prominent. 



Hind limb long, the tibio-tarsal artictilation reaching the 

 nostril, the tip of the snout, or a little beyond, the heels strongly 

 overlapping when the limbs are folded at right angles to the bod}' ; 

 tibia 4 to 5I times as long as broad, iS to 2h times in length 



