98 TESTUDINID®. 
1. Bellia crassicollis. 
Emys erassicollis, Gray, Syn. Rept. p. 21 (1831), and Ill. Ind. Zool. 
i. pl. lxxvi. fig. 2 (1832); Dum. § Bibr. ii. p. 825 (1835); Gray, 
Cat. Tort. p. 16 (1844); Cantor, Cat. Mal. Rept. p. 3 (1847); 
Gray, Cat. Sh. Rept. i. p. 20 (1855); Giinth, Rept. Brit. Ind. 
p. 28, pl. iv. fig. E (1864). 
—— spengleri, part., Schleg. Faun. Japon., Rept. p. 49 (1833). 
nigra, Blyth, Journ. As. Soc, Beng. xxiy. 1855, p. 713 (1856), 
and xxxii. 1863, p. 81. 
Clemmys crassicollis, Strauch, Chelon. Stud. p. 32 (1862), and Verth. 
Schildkr. p. 69 (1865). 
Bellia crassicollis, Gray, Proc. Zool. Soc. 1869, p. 197, and Suppl. 
Cat. Sh. Rept. 1. p. 40 (1870). 
crassilabris, Theod. Cat. Rept. Brit. Ind. p. 10 (1876). 
Carapace moderately depressed, tricarinate in the young, the 
keels, especially the laterals, becoming indistinct in old specimens ; 
vertebral region flattened in the adult male; posterior border 
serrated ; nuchal small, broadest behind; posterior side of first 
Skull of Bellia crassicollis. (From Gray, P.Z.8. 1869.) 
vertebral not half the length of the shield in the adult ; vertebrals 
2to 4 as long as broad or a little broader than long, much nar- 
rower than the costals, narrowly in contact with each other in old 
specimens; in the latter the antero-lateral sides are convex, the 
postero-lateral longer and concave. Plastron smaller than the 
opening of the shell, truncate anteriorly, angularly notched pos- 
teriorly, feebly concave in the males, strongly angulated laterally 
in young specimens, feebly in old ones; the width of the bridge 
about equals the length of the hind lobe; relative size of plastral 
shields very variable; abdominals usually forming the longest 
