60 TESTUDINID&. 
2. CALLAGUR. 
Clemmys, part., Strauch, Chelon. Stud. p. 28 (1862). 
Batagur, part., Giinth. Rept. Brit. Ind. p. 87 (1864). 
Kachuga, part., Gray, Proc. Zool. Soc. 1869, p. 200. 
Callagur, Gray, Suppl. Cat. Sh. Rept. i. p. 53 (1870), 
Cantorella, Gray, 1. c. p. 58. 
Neural plates elongate, 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 
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 broad, of upper Jaw with 
a median ridge ; edge of jaws denticulated ; choanse between the eyes. 
Upper surface of head covered with undivided skin. Digits very 
broadly webbed. ‘Tail very short, not longer in the young than in 
the adult. 
Malay Peninsula; Borneo. 
1. Callagur picta. 
Emys trivittata (non D. § B.), Cantor, Cat. Mal, Rept. p. 4 (1847). 
Tetraonyx affinis, part., Cantor, l. c. p. 6. 
Batagur picta, Gray, Proc. Zool. Soc. 1862, p. 204. 
affinis, Giinth. Rept. Brit. Ind. p. 40, pl. iii. fig. C (1864) ; 
Theob. Cat. Rept. Brit. Ind. p. 19 (1876). 
Clemmys grayi, Strauch, Verth. Schildkr. p. 88 (1865). 
Kachuga affinis, Gray, Proc. Zool. Soc, 1869, p. 203. 
Callagur picta, Gray, Suppl. Cat. Sh. Rept. i. p. 53 (1870). 
Cantorella affinis, Gray, d. c. p. 58. 
Kachuga major, Gray, Ann. § Mag. N. H. (4) xi. p. 300 (1873). 
Tetraonyx pictus, Theob. /. ec. 
Carapace with a strong continuous vertebral and a feeble inter- 
rupted costal keel in the young ; these keels disappearing in the adult ; 
nuchal absent or extremely small and linear; first vertebral as 
broad in front as behind, or a little broader; vertebrals 2 to 4 
subequal in length, much broader than long in the young, nearly 
as long as broad, and nearly as broad as the costals, in the adult ; 
postero-lateral border of the third vertebral concave. Plastron 
large, strongly angulated laterally in the young, convex in the 
adult, truncate anteriorly, notched posteriorly ; the width of the 
bridge exceeds the length of the posterior lobe; the longest median 
suture is that between the abdominals, the shortest that between 
the gulars, which is about half that of the interhumeral suture: 
inguinal large, axillary smaller. Head rather small; snout pointed, 
produced ; jaws with denticulated edge, upper feebly notched 
mesially ; the width of the lower jaw at the symphysis is a little 
less than the diameter of the orbit. Limbs with transversely en- 
larged, band-like scales. Brown above, yellowish inferiorly ; cara- 
pace with three broad blackish longitudinal bands. 
Length of shell 42 centim. 
Malay Peninsula and Borneo. 
