1920.] G. A. BouLENGER : Frogs of the Genus Rana. 95 



I. 2. 3. 4. 5. 6. 7. 8. 9. 10. II. 12. 13. 14. 



Fourth finger .. 4 5-5 6 5 4-5 7 6 5 4 4 5 5 5 4 



Hind limb .. 92 90 115 107 81 115 104 91 62 77 85 121 115 72 



Tibia .. •• 30 29 37 34 25 36 33 29 20 25 27 38 36 22 



Foot .. .. 30 30 37 34 27 38 35 29 21 25 27 36 36 24 



Third toe .. 16 16 19 17 14 18 19 15 11 13 14 19 19 13 



Fourth toe . . 24 24 30 28 20 29 27 25 18 20 23 30 29 20 



Fifth toe .. 17 17 21 18 15 20 19 16 12 14 15 20 19 14 



I — 2. Yokohama. 3 — 4. Japan (types). 5. Yeso. 6 — 7. Tsu Shima {R. tsii- 

 shimensis). 8. Ningpo. 9. Da Zu Valley, Chi Kiang. 10. l/ushan Mts. , Kin 

 Kiang. 11. Sze Chuen. 12 — 13. Yunnan fu. 14. Canton. 



Habitat. Japan, Corea, China from Pekin to Canton and Yun" 

 nan. The record from the Loo Choo Island requires confirmation. 



R. japonica varies much in the shape of the head. Specimens 

 from Tsu Shima {R. tsushimensis , Stejn.) have a short rounded 

 snout, but the difference between them and typical specimens is, in 

 this respect, not greater than between the extremes met with in the 

 European R. agilis and R. arvalis ; the difference is besides bridged 

 over by specimens from Hondo and from China. 



As this species is known to occur in Corea, it is v^ery prob- 

 able that the specimens with long and pointed snouts from S.E. 

 Siberia noticed by Middendorff and for which the name R. 

 middendorffi has been proposed by Steenstrup, belong to this 

 species. 



44. Rana longicrus. 



Rana lo)igicrus, Stejneg., Journ. Sc. Coll. Tokyo, XII, 1898, p. 216, and 

 Herp. Japan, p. 104, fig. (1907). 



Vomerine teeth in oblique groups between and projecting 

 beyond the choanae, or entirely behind them. 



Head longer than broad; snout pointed, feebly projecting 

 beyond the mouth, longer than the eye ; canthus rostralis distinct ; 

 loreal region feebly oblique ; nostril nearer the tip of the snout 

 than the eye ; distance between the nostrils equal to the inter- 

 orbital width, which equals or exceeds that of the upper eyelid 

 or the diameter of the tympanum ; tympanum very distinct ; 

 ^ to f the diameter of the e^^e and 2 to 3 times its distance from 

 the latter. 



Fingers long and slender, obtuse, first and second equal or 

 first slightly the loneer, third longer than the snout; subarticular 

 tubercles moderate. 



Hind limb very long and slender, about twice as long as head 

 and body ; tibio-tarsal articulation reaching beyond the tip of the 

 snout ; heels strongly overlapping when the limbs are folded at 

 right angles to the body ; tibia 5^ to 6 times as long as broad, i| 

 to if times in length from snout to vent, as long as or longer 

 than the fore limb, as long as or slightly shorter than the foot. 

 Toes long and slender, obtuse or the tips sHghtly swollen, \ 

 webbed, 3 phalanges of fourth and i|- or 2 of third and fifth 

 f ree ; outer metatarsals separated nearly to the base ; subarticular 

 tubercles rather small ; no tarsal fold ; inner metatarsal tubercle 



