OCR Text |
Show 710 DR. J. E. GRAY ON INDIAN TORTOISES. [Nov. 1, 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 compared 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 Pangshura? 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- Fig. 2. Pangshura ventricosa. |