2. PELOCHELYS.—3. CHITRA. 263 
1. Pelochelys cantoris. 
Chitra indica, part., Gray, Cat. Tort. p. 49 (1844), and Sh. Rept. 
i. p. 70 (1855) ; Giinth, Rept. Brit. Ind. p. 50, pl. vi. fig. C (1864). 
Gymnopus indicus, Cantor, Cat. Mal. Rept. p. 10 (1847). 
Pelochelys cantorii, Gray, Proc. Zool. Soc. 1864, p. 90, figs., and 
Suppl. Cat. Sh. Rept. i. p. 90 (1870) ; Theob. Cat. Rept. Brit, Ind. 
p. 28 (1876). 
—— cumingii, Gray, ll. cc. pp. 90, 91. 
—— hibronii, Gray, ll. cc. 
Costial 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; interorbital space broader than the greatest diameter of 
the orbit; mandible narrowest at the symphysis. Olive above, 
uniform or spotted with darker; lips and throat of young olive, 
speckled with whitish ; plastron whitish. 
Length of dorsal disk 60 centim. 
Ganges, Burma, Malay Peninsula, Borneo, Philippines. 
a. Her., stffd., skull Pinang. Dr. Cantor. (Type.) 
separate, 
6. Ad., stffd. Akyab, Burma. W. Theobald, Esq. [C. ]. 
e. Yg., shell. Burma. W. Theobald, Esq. | C. |. 
d. Her., shell. India ? F, Day, Esq. [P.]. 
e. Ad., skel. Koelei, Borneo, Hr. Carl Bock [C. ]. 
f. Ad., stffd. Philippines. H. Gu Ksq. (Types of 
C.]. 
¢ org ; P, cum- 
g. Yg., spir. Philippines. H, Cuming, Esq.( 
[C.}. mg.) 
3. CHITRA. 
Trionyx, part., Gray, Syn. Rept. p. 45 (1831); Strauch, Chelon. 
Stud. p. 50 (1862). 
Gymnopus, part., Dum. § Bibr. ii. p. 472 (1835). 
Chitra, Gray, Cat. Tort. p. 49 (1844), and Proc, Zool. Soc. 1864, p. 91, 
and Suppl. Cat. Sh. Rept. i. p. 89 (1870), and Proc. Zool. Soc. 
1873, p. 40. 
Chitra, nee 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 choanz 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. 
