1. KACHUGA. 51 
Carapace without hinge; front lobe of plastron movable. 
18. Pyxis, p. 144. 
Carapace and plastron without hinge. 
19. Homopus, p. 145. 
B. Alveolar surface of upper jaw with a median ridge. 
20. Testudo, p. 149. 
1. KACHUGA. 
Emys, part., Gray, Syn. Rept. p. 20 (1831); Dum. § Bubr. ii. p, 232 
(1835); Gray, Cat. Tort. p. 14 (1844). : 
Batagur, part., Gray, Cat. Sh. Rept. i. p. 85 (1855) ; Giinth. Rept. 
Brit. Ind. p.37 (1864); Anders. Zool. Res. Yunnan, p. 729 (1879), 
Clemmys, part., Strauch, Chelon, Stud. p. 28 (1862). 
Kachuga, part., Gray, Cat. Sh. Rept. i. p. 35. 
Pangshura, Gray, 1. c. p. 36; Gtinth. lec p. 83; Gray, Suppl. Cat. 
Sh. Rept. i. p. 60 (1870). 
Batagurella, Gray, Proc. Zool. Soc. 1869, p. 200. 
Dongoka, part., Gray, 1. ec. p. 202. 
Kachuga, Gray, Suppl. Cat. Sh. Rept. i. p. 54. 
Dhongoka, Gray, /. c. p. 57. 
Cuchoa, Gray, l. c. p. 61. 
Jerdonella, Gray, l. ¢. 
Emia, Gray, /.¢. 
Fourth vertebral shield elongate, embracing four or five neural 
plates; neural plates hexagonal, short-sided in front. Plastron 
extensively united to the carapace by suture, with extremely deve- 
loped axillary and inguinal buttresses, the former connected with 
or nearly reaching the first rib, the latter anchylosed between the 
fifth and sixth costal plates; entoplastron anterior to the humero- 
pectoral suture. Skull with a bony temporal arch ; alveolar surfaces 
very broad, of upper jaw with a median ridge; edge of jaws denti- 
culated ; choanz on a level with the posterior border of the eyes, or 
behind. Upper surface of head covered with undivided skin. 
Digits very broadly webbed. ‘Tail very short, not longer in the 
young than in the adult. 
India and Burma. = 
Synopsis of the Species. 
I, Third vertebral shield forming a broad suture with the fourth, 
which embraces four neural plates; neural plates much 
longer than broad. 
A. Second vertebral shield with straight transverse posterior 
border ; suture between humerals and pectorals conyex or 
forming an obtuse angle. 
Alveolar surface of upper jaw extremely 
broad, the median ridge nearer the 
