TRIONYCHIDJE. 



23 



(iHmptla btttata, Peters l . 

 Syn. Emyda ceylonensis, Gray 2 . 



Distinguished from the typical E. granosa (Schoepff) by the 

 generally larger size of the ento- and xiphiplastral callosities, 

 together with certain differences of coloration. Whether these 

 characters are really specific is doubtful (see Boulenger, ' Catalogue 

 of Chelonians, &c.' p. 270). 



Some of the fragmentary specimens mentioned below may be 

 referable to E. granosa, but in the absence of any decisive evidence 

 on this point they are provisionally included under this specific 

 heading, since the best preserved of the undermentioned specimens 

 of the shell is undoubtedly referable to this form. 



Hab. India and Ceylon, 



Fig. 5. 



Emyda (cf.) vittata. — Frontal aspect of the skull ; from the Siwaliks of Periin 

 Island, Gulf of Canibay. \. Letters as in fig. 2. (From the ' Kec. Geol. 

 Surv. Ind.') 



R. 221. The skull of a full-grown individual of this or an allied 



{Fig.) species ; from the Pliocene Siwaliks of Perim Island, 



Gulf of Cambay, India. This specimen, which has been 



somewhat damaged by rolling, agrees in all respects with 



the skulls of the existing form, showing very clearly the 



1 Monatsb. k. preuss. Ak. Wiss. 1854, p. 216. 



2 Cat. Shield Eeptiles, pt. i. p. 64 (1855). 



