144 Indian and Malayan Amphibia and Reptilia. [No. 2, 



be a little stronger than in most other specimens ; the web reaches 

 to the tip of the third, but not to that of the fifth toe ; the 

 fringe on the external edge of the fifth toe is almost obsolete. 

 The tubercles which are in young specimens very distinct on the 

 body, and above the eyes, become also nearly quite obsolete in the 

 old frog. 



Although at the first sight the greater length of the legs and 

 the obtuse snout appear to be striking differences, I don't think 

 that they are sufficient to regard this insular form as distinct from 

 the continental, particularly so, when we observe the changes in 

 the length of the legs of the Arracan and Rangoon specimens, and 

 those from the Welesley province. Possibly the above noted differ- 

 ences may in time become better developed, and may then be 

 considered as of specific value : that is — a local race may in time 

 become a species. 



b. var. NicobariensiS. From the Nicobars, in the neigh- 

 bourhhood of the Nancowri harbour, I obtained one peculiar young 

 specimen. The body measures l£th inch, and the distance between 

 the vent and metatarsal tubercle is slightly more than that of the 

 length of the body, thus in this point coming up very near to the 

 typical Arracan specimens, but it has the short snout of the var. 

 Andamane?isis, and of the next variety from Penang. It differs, 

 however, from both in the very slight webbing of the feet, the toes 

 being considerably elongated and slender, the fourth equals in 

 length to very nearly half the body, the disks are slightly swollen, 

 and the web is almost only basal, it hardly extends to half the 

 length of the toes ; the cutaneous fringe on the edge of the fifth toe 

 is slight but distinct, and the tubercle at the base of the fourth toe 

 obsolete. The skin is, like in other young specimens of gracilis, 

 finely tuberculated, and the whole habitus and coloration identical 

 with type specimens ; the lower side is finely mottled with dusky, 

 as in Andamanensis. 



c. var. pulla. As a further variety of R. gracilis I regard two 

 specimens which I obtained in a small pool of water at a height of 

 about 2,000 feet on the Penang hill. One is only -fth, and the other 

 |^th of an inch long ; they agree with the Andaman variety in the 

 somewhat obtuse form of the snout, spotted chin and breast and the 



