2. PELOCHELTS. — 3. CHITRA. 263 



1. Pelochelys cantoris. 



Chitra indica, part., Gray, Cat. Tort. p. 49 (1844), and Sh. Rept. 



i. p. 70 (1655) ; Giinth. Rept. Brit. Ind. p. 50, pi. vi. fig. C (18(34). 

 Gymunpus iudiciis. Cantor, Cat. Mai. Rept. p. 10 (1847). 

 Pelochelys cantorii. Gray, Proc. Zool. Soc. 18(!4, p. !X), fi"-3 , aiid 



SuppL Cat. Sh. Rept. i. p. UO (1870) ; T/ieob. Cat. Rept. Bnt. Ind. 



p. 28 (187G). 



cunungi), Gray, U. cc. pp. 90, 91. 



bibroiiii, Gray, II. cc. 



Costal plates eight pairs, the last well developed and forming a 

 median suture ; a single neural between the first pair of costals ; 

 plates coarsely pitted and vermiculate. Dorsal skin of young 

 tuberculate. Epiplastra small and widely separated ; entoplastron 

 forming a right or an acute angle ; plastral callosities largely 

 developed. Head moderate ; snout very short and broad ; proboscis 

 very short ; intcrorbital space broader than the greatest diameter of 

 the orbit; mandible narrowest at the sympliysis. Olive a])ovc, 

 uniform or spotted with darker ; lips and throat of young olive, 

 speckled with wliitish ; plastron whitish. 



Length of dorsal disk GO ccntim. 



Ganges, Burma, Malay Peninsula, Eorneo, Philippines. 



a. Hgr., stffd., skull Piiiaug. Dr. Cantor. (Type.) 

 separate. 



b. Ad., stlTd. Akyab, Burma. W. Theobald, Esq. [C 



c. Yg., shell. Burma. W. Theobald, Esq. [C. 



d. llgr., shell. India ? E. Day, Esq. [P.]. 



e. Ad., skel. Koelei, Borneo. Ilr. Carl Bock [C] 

 /. Ad., stlFd. PhiMppines. II. Cuming, Esq. ) ,rr c 



[C.]. / ^Types of 



g. Yg., spir. PhiUppines. H. Cuming, Esq. f ^'' ^'"' 



[C.]. 



ingii.) 



3. CHITRA. 



Trionyx, part., Gray, Syn. Rept. p. 45 (1831) ; Stramh. Chelon. 



Stud. p. 50 (1862). 

 Gymnopus, part., Dum. ^ Bibr. ii. p. 472 (1835). 

 Ciiitra, Gray, Cat. Tort. p. 49(I844),flnf/7'/-oc. Zool. Soc. 1864, p. 91, 



and Suppl. Cat. Sh. Reiit. i. p. 89 (1870), and Proc. Zool. Soc. 



1873, p. 40. 

 Chitra, part., Gray, Cat. Sh. Rept. i. p. 70 (1855) ; Giinth. Rept. 



Brit. Ind. p. 50 (1864). 



Outer extremities of the nuchal plate overlying the second dorsal 

 rib ; neural plates well developed. Limbs completely exposed. 

 Hyoplastron distinct from hypoplastron ; not more than five plastral 

 callosities. Bony choanae behind the orbits, which are situated 

 quite at the anterior extremity of the skull ; jaws weak ; postorbital 

 arch at least twice as broad as the diameter of the orbit ; pterygoids, 

 posterior border free, without ascending process. 



East Indies. 



