Mactra (Mactra) grandis   Gmelin,  1791 (Clam)
Organism information awaits expert curation
Class: Bivalvia

Image copyrights: Government of India

Size: Length 21.50-44.36 mm; height 16.12-37.60 mm

Color: Light brown, umbonal region and tip violet; interior white, with violet blotch near umbonal cavity.

Shell triangular in shape, equilateral, moderately thick, inflated; umbo small, dorsal margin on either side of umbo gradually sloping, anterior margin broadly rounded, posterior narrower, ventral evenly rounded; surface smooth except for growth lines; hinge narrow; interior smooth.

Synonym (s)
Mactra grandis Gmelin, 1791
Mactra (Mactra) grandis Ray, 1977

Common Name (s)
Economic Importance and Threats



• Orissa, Mahanadi Estuary (Lat: 20.32) (Long: 86.75) INDIA
• Orissa, Kalupara ghat INDIA (Record: 1955)
• Orissa, Konark INDIA (Record: 1962)
• Orissa, Puri INDIA (Record: 17/11/1962)
• Orissa, Chandrabhaga INDIA (Record: 15/02/1972)
• Orissa, Kaluparaghat INDIA (Record: 12/01/1955)
• Orissa, Gopalpur INDIA (Record: 21/02/1948, 30/03/1973)

Literature Source(s)
  • Rao, NVS; Rao, KVS and Manna, RN (1995) Mollusca Wetland ecosystem series 1: Fauna of Chilka lake ZSI, Calcutta 391-468 Available at - NIO, Goa
  • Zoological Survey of India (Eds.) (1998) Fauna Of Mahanadi estuary, Orissa Estuarine ecosystem series no 3 ZSI, Kolkata 1-218 Available at - ZSI, Pune
  • Society for the Management of European Biodiversity Data (2009) World Register of Marine Species (WoRMS) Available at -
  • Rao, NVS; Rao, KVS and Maitra, S (1991) Marine molluscs State fauna series 1: Fauna of Orissa Zoological Survey of India, Calcutta Part 3 1-175 Available at - NIO, Goa

Page last updated on:2012-11-21

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