go Records of the Indian Miiseum. [Voi,. XX, 



var. ridibunda. var. chinensis. 



I. 2. 3. 4. 5. 6. 7. 8. 9. 10. II. 12. 13. 14. 15. 



Fourth toe . . 30 37 25 25 26 33 33 40 38 36 27 33 23 33 36 



Fifth toe .. 22 27 17 19 20 24 24 30 30 27 20 24 15 23 25 



First toe .. 9 12 7 7-58 9 9 11 11 11 5-58 4-55 8 

 Inner metatarsal 



tubercle .. 3-54 3 3 3 3*5 3*5 4 5 4 4'5 5 3-5 5 5 



I — 2. Kermanshah, S.W. Persia, 6000 f. 3 — 4. Susa, S.W. Persia (type 

 of var. susana). 5. Shiraz, S.W. Persia. 6 — 7. Kazerun, S.W. Persia. 8. Nr. 

 Sarawan, Baluchistan. 9. Turbat, Afghanistan. 10. Chinese Turkestan. 11 — 12. 

 vShanghai. 13. Chusan. 14. Ningpo. 15. Mountains N. of Kiukiang. 



There has been much discussion as to the (propriety of assign- 

 ing specific rank to the two forms here described. I have recently 

 (1918) expressed ver}' fully my views on this subject, and the argu- 

 ments I have adduced have a bearing on the status of R. tigrina 

 and R. crassa, as noticed above. 



41. Rana pleuradcn. 



Rana pleuradeii, Bouleng., Ann. and Mag. N.H. (7) XIII, 1904, p. 131. 



Vomerine teeth in two oblique groups or short series between 

 the choanae, nearer to each other than to the latter. 



Head moderately depressed, as long as broad ; snout obtusely 

 pointed, prominent, as long as or a little longer than the eye; 

 canthus rostralis obtuse ; loreal region oblique, concave ; nostril 

 equidistant from the eye and from the end of the snout ; distance 

 between the nostrils greater than the interorbital width, which is 

 less than that of the upper e^-elid ; tympanum ver}^ distinct, f to I the 

 diameter of the ej'e and 2 to 4 times its distance from the latter. 



Fingers rather slender, obtusely pointed, first longer than the 

 second, third longer than the snout ; subarticular tubercles mod- 

 erate. 



Hind limb moderately long, the tibio-tarsal articulation reach- 

 ing between the e^^e and the tip of the snout, the heels overlapping 

 when the limbs are folded at right angles to the body ; tibia 3 to 

 3 J times as long as broad, twice or a little more than twice in 

 length of head and body, shorter than the fore limb, which nearly'- 

 equals the length of the foot. Toes rather long and slender, 

 obtusely pointed, ^ webbed, 3 phalanges of fourth and 2 of third 

 and fifth free ; outer metatarsals separated nearly to the base ; 

 subarticular tubercles rather feeble ; no tarsal fold ; inner metatar- 

 sal tubercle oval, prominent, I to V the length of the inner toe ; 

 no outer tubercle. 



Skin smooth or with small warts which may bear small conical 

 asperities ; a moderately broad, very prominent dorso-lateral glandu- 

 lar fold, from above the tympanum to the groin ; the distance 

 between the dorso-lateral folds, on the back, I to tt the length 

 of head and body. Lower parts smooth. 



Olive-brown or greyish above, spotted with black ; a light verte- 

 bral streak, narrow or broad, usually present ; a dark brown or 



