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PAEUEXSIA.
161
colour as in the last; cardinal teeth broad ; nacre bluish white ;
umbonal rugae as in var. chrysis.
Long. 27, lat. 40, diam. 17 mm.
Hob. Standing water, or "jheel," between Hameerpore and
Someerpore, Bundelkhund.
Indian Museum specimens are from Damuda; Maabhoom ;
Gunduk, Ranigunga and Patna.
Var. assamensis (jVevill MS.), Preston, Eec. Ind. Mns. Calcutta,
vii, 1912, p. 299.
Shell more convex than the typical form, the dorsal margin
rather less posteriorly angled, the anterior side is more rounded
• and the posterior slightly more nasute.
Hab. Dihong.
Pie. 12.—Parreysia {P.)favidens (Bens.), var. assamensis, Preston
(Type.) Nat. size.
Specimens in the Indian Museum are also labelled as follows:
Assam; Arrah.; Sylhet.
Type in Indian Museum, Calcutta.
Fig. 13.—Parrei/sia {P.)famdens (Bens.), far. pinax (Bens.).
(Type.) Nat. size.
Var, pinax (Benson).
Uiiio pinax, Benson, A. M. N. 11. x, 1802, p. 192.
Uniofavidens, y-AX. pinax, H. & T., C. 1. p. C, pi. 11, fig. 2.
Original description:—Testa transverse oblonga, suboblique
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