RANA. 441 



&''. Skin granulate above. 



a. Tibio-tarsal articulation not reach- 

 ing beyond eye R. malabarica, p. 456. 



/3. Tibio-tarsal articulation reaching 



tip of snout, or beyond R. nicobariensis, p. 459. 



b'. No outer metatarsal tubercle R. lateralis, p. 457. 



b. Web reaching terminal disks of 3rd and 5th 



toes. 

 '. Tympanum at least two thirds size of 



eye. 

 a". An outer metatarsal tubercle (at 



base of fourth toe). 



a. Tibio-tarsal articulation not reaching 

 beyond eye ; 1st finger extending 



beyond 2nd ; head large R. curtipes, p. 458. 



j3. Tibio-tarsal articulation reaching 



beyond eye. 

 a'. First finger not extending beyond 



2nd X. tytleri, p. 458. 



ft'. First finger extending beyond 2nd. R. temporal-is, p. 459. 

 b". No outer metatarsal tubercle. 



a. Vomerine teeth very feebly devel- 

 oped ; limbs with dark cross 



bands R. margariana, p. 459. 



/3. Vomerine teeth well developed; 



no dark cross bands on limbs. 



a'. First finger extending beyond 2nd. R. humeralis, p. 460. 

 B'. First finger not extending beyond 



2nd R. erythrcea, p. 460. 



b'. Tympanum about one third size of eye. . R. monticola, p. 461. 

 No glandular lateral fold ; digits dilated into 

 large disks which at least equal tympanum 

 in size. 



a. Third finger not longer than distance 



between nostril and tympanum. 

 a' . First finger extending a li ttle beyond 2nd ; 



tympanum about half diameter of eye. R. livida, p. 462. 

 b'. First finger not extending quite as far as 



2nd ; tympanum not half diameter of 



the eye R. latopalmata, p. 462. 



b. Third finger at least as long as distance 



between tip of snout and tympanum ; 1st 

 finger much shorter than 2nd. 

 a'. Tibio-tarsal articulation reaching beyond 



tip of snout; tibia as long as trunk. . R. himalayana, p. 463. 

 V. Tibio-tarsal articulation reaching tip of 

 snout ; tibia considerably shorter than 

 trunk R. formosa, p. 463. 



3. Raua hexadactyla. 



Rana hexadactyla, Lesson, in Belong. Voy. Ind. Or., Zool. p. 331 ; 



Giinth. Rapt. B. I. p. 405 ; Bouleng. Cat. Bat. Sal. p. 17. 

 Dactvlethra bengalensis, Lesson, III. Zool. pi. xlvii. 

 Rana cutipora, Dum. Sf Bibr. Erp. Gen. viii, p. 338. 

 Rana robusta, Blyth, J. A. S. B. xxiii, 1854, p. 298. 



