3. BATAGUR. 61 
a. Her., stfid. Sarawak. A. R. Russell, Esq. [C.]. (Type.) 
b. Ad., stfid. Pinang. Dr. Cantor. 
cy Yeu epir: Pinang. Dr. Cantor. (One of the types of 
Tetraonyx affinis.) 
d. Yg., dry. —? (Type of Kachuga mayor.) 
3. BATAGUR. 
Emys, part., Gray, Syn. Rept. p. 20 (1831). 
Tetraonyx (non Latr.), Lesson, in Bélang. Voy. Ind. Or., Zool. p. 297 
(1834); Dum. § Bibr. ii. p. 887 (1835); Gray, Cat. Tort. p. 29 
(1844) ; Anderson, Zool. Res. Yunnan, p. 771 (1879). 
Batagur, part., Gray, Cat. Sh. Rept.i. p. 35 (1855); Giinth. Rept. 
Brit. Ind. p. 87 (1864) ; Anders. 1. c. p. 729. 
Clemmys, part., Strauch, Chelon. Stud. p. 28 (1862). 
Batagur, Gray, Suppl. Cat. Sh. Rept. i. p. 51 (1870). 
Neural plates elongate, hexagonal, short-sided in front. Plas- 
tron extensively united to the carapace by suture, with extremely 
developed axillary and inguinal buttresses, the former connected 
with 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; alyeolar surfaces very 
broad, of upper jaw with two strong, slightly denticulated median 
ridges ; edge of jaws denticulated ; choanz behind the level of the 
eyes. Limbs somewhat approaching the paddle-shape, very broadly 
webbed, with four claws. Tail very short, not longer in the young 
than in the adult. 
Bengal, Burma, Malay Peninsula. 
1. Batagur baska. 
Emys batagur, Gray, Syn. Rept. p. 23 (1831), and Lil. Ind. Zool. ii. 
pl. lix. (1854), 
baska, Gray, l. c. p. 24, and Ill. Ind. Zool. i; pl. Ixxv. (1832). 
Trionyx cuvieri, Gray, Syn. Rept. p. 50. 
Tetraonyx longicollis, Lesson, in Bélang. Voy. Ind. Or., Zool. p. 297 
1834). 
lessoniil, Dum. § Bibr. ii. p. 338, pl. xvi. fig. 1 (1855). 
baska, Dum. § Bibr. t.c. p. 8341; Theob. Cat. Rept. Brit. Ind. 
p. 25 (1876). 
batagur, Gray, Cat. Tort. p. 29 (1844). 
affinis, part., Cantor, Cat. Mal. Rept. p. 6 (1847). 
Batagur baska, Gray, Cat. Sh. Rept. i. p. 35, pl. xvi. (1855) ; Giinth. 
Rept. Brit. Ind. p. 37, pl. ii. fig. B (1864); Gray, Suppl. Cat. Sh. 
Rept. i. p. 52 (1870). 
Clemmys longicollis, Strauch, Chelon. Stud. p. 35 (1862). 
Batagur (Tetraonyx) baska, Anders. Zool. Res. Yunnan, p. 771, pls. 
Ixvi. & Ixvii. (1879). 
Carapace moderately depressed, with a vertebral keel in the 
young, which disappears in the adult; nuchal broader than long ; 
first vertebral as broad in front as behind, or a little broader ; 
vertebrals 2 to 4 subequal, much broader than long in the young, 
nearly as long as broad and as broad as the costals in the adult ; 
the postero-lateral border of the third vertebral strongly concave. 
