PLATE XXVII. 
Chelonia — Trionychidm. 
1. Chitra INDICA, Gray. Anterior portion of the carapace ; from the Siwalik Hills. British 
Museum (No. 39830). 
2. Chitra indica, Gray. Greater portion of the carapace ; from the Siwalik Hills. British 
Museum (No. 39832). 
3. 3a. Trionyx, sp. Right half of the plastron (3) and the vertebro-costal region of the carapace 
(3a) ; from the Siwalik Hills. Indian Museum (No. E 163). 
% Figs. ^1, 2, ’ nat. size ; figs. 3, 3a ^ nat. size. — eni. pi . — azygos entoplastral callosity. 
