22 Records of the Indian Museum. [Voi.. VIII, 



branes well developed for its whole length both above and below 

 the muscular portion ; the greatest depth twice that of the 

 muscular portion. 



Colouration somewhat variable; dorsal surface brownish, 

 marked in some individuals with yellow ; fin-membrane pale, with 

 large dark pigment-cells which in some individuals tend to be 

 arranged in vertical bars ; a dull 3''ellowish mid-dorsal streak some- 

 times present at base of tail ; spiracle surrounded by a white 

 ring. 



Dimensions of an individual in which the hind legs are be- 

 ginning to appear. 



Total length 



44 mm. 



Length of head and body . . . . 15 



Ivcngth of tail . . . . . . 29 



Maximum breadth of body . . . . 12 



Maximum depth of body . . . . 10 



Maximum depth of tail . . . . 12 



Full-grown tadpoles measure about 56 mm. in length. 



B. Larva of Rana alticot^a, Boulgr, (Plate iv, fig. i.) 



Boulenger, Cat. Batr. Sal. Brit. Mus., p. 62, fig. ; Annandale 

 P Z.S., 1905 (I), p. .58, pi. vi. 



The tadpoles figured and described b}' Mr. Boulenger were 

 evidently badly preserved and faded. 1 have, therefore, re- 

 described this larva from well-preserved and recently captured 

 specimens. 



Head and body flattened both above and also on the anterior 

 part of the ventral surface, oval, truncate anteriorl3\ 



Mouth ventral; lips well developed, the posterior lip directed 

 backwards, not excessiveh^ broad, with a single row of rather 

 small tubercles running all along its margin ; anterior lip directed 

 forwards and inwards, fringed for rather less than a third of its 

 length on either side and bearing on its ventral surface in the 

 same region numerous small tubercles, bare in the middle. Dental 

 formula 2: 5 + 5 j i + i: 8, the outer row of teeth on the pos- 

 terior lip feebh^ developed; beak in two parts, an upper and a 

 lower ; both parts roughened on the surface but not serrated at 

 the margin; upper part crescentic, projecting slightly in the 

 middle ; lower part broadl}^ V-shaped. 



Nostril and eye small, by no means prominent ; the former 

 in well-preserved specimens rather nearer the e^^e than the tip 

 of the snout; eye directed obliquely upwards, situated near the 

 dorsal surface, much nearer the snout than the base of the 

 tail. 



Spiracle sinistral, tubular, directed outwards and a little 

 upwards 



Vent dextral. 



