54 TESTUDINID ZA. 
B. Third vertebral shield pentagonal, pointed behind; neural 
plates not or but slightly longer than broad. 
1. Second vertebral shield much shorter than third, embracing 
two neural plates. 
Posterior margin of carapace strongly ser- 
rated; 26 marginal shields (including 
EBUGAIE) se snouts etre Oe EP Cte Shc 5. sylhetensis, p. 57. 
Posterior margin not serrated ........ 6. intermedia, p. 58. 
2. Second vertebral shield as long as 
broad, embracing three neural 
plates tt. Gta eew co ea se 7. tectum, p. 58. 
1. Kachuga lineata. 
Emys dhor, part., Gray, Syn. Rept. p. 20 (1881). 
dentata, part., Gray, l. c. errata, & pls. viii., 1x., and Ill. Ind. 
Zool. ii. pl. lviii. fig. 1 (1834). 
lineata, Gray, l. ¢. p. 23; Dum. & Bibr. ii. p. 335 (1835); 
Gray, Cat. Tort. p. 16 (1844). 
kachuga, Gray, Ill. Ind. Zool. i. pl. xxiv. (1882). 
Batagur lineata, Gray, Cat. Sh. Rept. i. p. 35, pl. xvi. (1855); 
Giinth. Rept. Brit. Ind. p. 89 (1864) ; Anders. Zool. Res. Yunnan, 
p. 745 (1879). 
— dhongoka, Gray, l. ¢. pl. xxxvi. (skull). 
— ellioti, Gray, Proc. Zool. Soe. 1862, p. 264; Giinth. l. ce. p. 40, 
ple figs AS 
Clemmys lineata, Strauch, Chelon. Stud. p. 383 (1862). 
ellioti, Strauch, Verth. Schildkr. p. 88 (1865), 
Kachuga hardwickii, Gray, Proc. Zool. Soc. 1869, p. 202. 
? Kachuga fusca, Gray, Suppl. Cat. Sh. Rept. i. p. 56 (1870). 
Kachuga lineata, Gray, l. ¢. 
dentata, Gray, l. ¢. 
Dhongoka hardwickii, part., Gray, 1. c. p. 57. 
Batagur kachuga, Theob. Cat. Rept. Brit. Ind. p. 19 (1876). 
bakeri, Lydekker, Pal. Ind. (10) iii. p. 190, pl. xxiv. fig. 5 (1885), 
Carapace of young strongly keeled, the keels tubercular poste- 
riorly on the second and third vertebral shields, posterior margin 
strongly crenulated ; the marginal serrature disappears in adolescent 
specimens, and the vertebral keel, after being reduced to a series of 
low knobs, vanishes entirely in the fullgrown, the carapace of which 
is very convex. Nuchal shield small, trapezoid, broadest poste- 
riorly ; first vertebral as broad in front as behind, or broader; 
second vertebral longer than third, with which it forms a straight 
transverse suture ; fourth longest and forming a broad suture with 
the third; second vertebral broader than long in the young, as long 
as broad in the adult. Plastron angulated laterally in the young ; 
anterior and posterior lobes rather narrow and shorter than the 
width of the bridge, truncate anteriorly, openly notched posteriorly ; 
the longest median suture is between the abdominals, the shortest 
between the gulars, which equals about one half that between the 
humerals ; the suture between gulars and humerals forms an obtuse 
angle, and so does that between humerals and pectorals ; inguinal 
