Dr. J. E. Gray on some Indian Tortoises. 343 



2. Testudo Horsfieldi, Gray, Cat. Tort. B.M. t. 1. 



There is a fine large specimen of this species, showing that it is 

 very distinct from the T. grceca of Europe. The upper jaw has a 

 small notch on each side of the tip. 



3. Emys crassicollis, Bell. 



The Collection contains three adult specimens of this species, which 

 are marked ^' Efuys nigra, Blyth." 



The adult examples are rather broader than the younger specimens, 

 in which a mucro is usually found, and the dorsal keels are almost 

 entirely obliterated ; the hinder edge of the thorax is acutely dentate ; 

 the sternum is pale greyish, with black areolae and rays. It is probably 

 the absence of the keels in the adult state that induced Mr. Blyth 

 to regard it as a distinct species ; but the keels generally become 

 more indistinct in all the species which are keeled in their younger 

 condition. 



The specimens are marked as coming from " Mergui." The jaws 

 are even, and not notched in front. 



4. Emys nigra, n.s., Blyth, Journ. As. Soc. Bengal, Ixxviii. 712. 



Mr. Blyth observes on the affinity of this species with E. crassi- 

 collis, but he does not appear to have the means of comparison. 



The Collection contains two species of the genus Batagur : — 



5. Batagur baska. Gray, Cat. Tort. B.M. t. 16. 



There is a very large adult shell of this species, which is marked 

 ^' Emys tentoria, Blyth." It measures 21^ inches over the back, 

 19^ along the sternum, and is 18 inches across the back and 21-j 

 over the convexity of the back. The jaws of the species are* very 

 strongly dentated ; the upper one is toothed on the edge with two 

 angular series of pits ; the lower jaw is furnished with two concentric 

 series of acute spinose tubercles, those in the outer series the largest 

 and very acute, the central one in front horny, very large. 



6. Batagur ocellata. Gray, Cat. Tort. B.M. t. 3Q. 



There is a beautiful specimen of a species of this genus from 

 Mergui, which I am inclined to believe is referable to Emys ocellata 

 of Dumerll and Bibron (Erpetologie gene'rale, ii. 329. 1. 15. f. 1) ; a spe- 

 cies which I have not before seen in any English collection. I should 

 have no doubt of its being that kind from the description ; but in the 

 figures the dark spots on the costal plates are represented as being 

 nearly regular, circular, broad rings round a pale circular centre, 

 while in the specimen received from Professor Oldham the dark 

 mark on the costal plate is an irregular oblong or square mark only, 

 partly surrounding the paler centre of the shield. 



Mr. Blyth in the same paper observes, '* Em,ys ocellata would 

 appear to be the commonest species in the Burmese rivers, and its 

 naked parts are olive-grey, the crown blackish, with a yellowish-white 

 V-like mark over the snout, continued as a superciUum over eack 



