13. Mactra grandis (Gmelin, 1791)

1791. Mactra grandis Gmelin, Syst. Nat., ed. 13: 3259, sp. 12

1977. Mactra (Mactra) grandis: Ray Contribution to the knowledge of Molluscan fauna of Maungmagan, Lower Burma: 134.

Material examined: 2 valves

Measurements: Length: 2.1cm, Height: 1.7cm

Distribution: Orissa.

Remarks: This species marine in its habitat.