Pinna (Atrina) pectinata pectinata   Linnaeus  (Clam)
Organism information awaits expert curation
Class: Bivalvia

Image copyrights: Government of India

Length: 99.50+ - 104.60+ mm; height 35.60-39.40 mm; width 15.50-16.50 mm

Shell wedge shaped, triangular, outline inflated, heavy, sculptured with radiating ribs, bears short upright spines which open posteriorly. Radiating sculpture consists of 15-30 radiating ribs on the posterior slope. Nacreous layer iridescent, occupying two-thirds of the valve. Posterior adductor scar large, subcircular, located within the posterior border of the nacreous area; anterior adductor scar small, located at the tip of nacreous area.

Synonym (s)
Pinna pectinata Linnaeus 1767
Pinna serra Smith 1891

Common Name (s)
Economic Importance and Threats



• West Bengal, South 24 Parganas INDIA (Record: 1992)
• Andaman and Nicobar Islands INDIA (Record: 1992)
• SRI LANKA (Record: 1992)
• West Bengal, Sandheads INDIA (Record: 20/06/1924, 00/07/1927, 00/05/1928,)

Literature Source(s)
  • Subba Rao, NV; Dey, A and Barua, S (1992) Estuarine and marine molluscs Fauna of West Bengal Part 9 (State fauna series 3) ZSI, Calcutta 129-268 Available at - NIO, Goa
  • Society for the Management of European Biodiversity Data (2009) World Register of Marine Species (WoRMS) Available at -

Page last updated on:2012-11-23

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