710 DR, J. E. GRAY ON INDIAN TORTOISES. [Nov. I, 
and produced behind, with a very prominent keel ending in an acute 
point behind ; the fourth much elongated, narrow and produced in 
front, with a narrow, sharp keel more prominent behind ; the fifth 
pentangular, longer than broad, the hinder sides being as wide as 
three of the marginal plates. Underside pale black, varied. 
Hab. Sylhet, at the foot of the Khasia hills, in running streams. 
The young specimen has the two front shields rather broader com- 
pared with the length than the others; and the largest specimen has 
the fourth vertebral shield rather irregular-shaped. This species 
differs from P. flaviventris in the keel of the first three shields being 
pale and not black, and much more indistinctly marked than in P. 
tectum; but is at once known by its strongly dentated margin and 
by the three hinder marginal plates on each side only occupying the 
hinder margin of the fifth vertebral plate. In all the other Pang- 
shure the hinder margin of the fifth plate only occupies the width 
of two and a half or two and a quarter marginal plates. 
2. PANGSHURA VENTRICOSA, Suppl. Cat. Sh. Rept. p. 60. 
The shell dark brown, oblong, and ventricose above, reddish yel- 

Pangshura veutricosa. 
