Gafrarium dispar   (Holten,  1802) (Clam)
Organism information awaits expert curation
Class: Bivalvia

Size: Maximum shell length 3 cm, commonly to 2 cm.

Color: Outside of shell cream to buff-colored, with irregular reddish brown patches or lines, sometimes forming zigzag patterns. Interior whitish, sometimes with yellowish hue.

Shell rather small, thick and solid, somewhat inflated, ovate-subquadrate in outline. Umbones low and rounded, anterior to midline of valves. Lunule lanceolate, flattened, with concentric growth lines and peripheral groove. Escutcheon smoothish, indistinct. Outer sculpture rather fine but well marked, with many small concentric ridges and slightly nodulous, diverging radial riblets rapidly weakening medially and anteriorly. Main sculpture of median area made of valves of concentric ridges. Hinge with 3 cardinal teeth at each valve and well-developed anterior lateral teeth, 1 in left valve and 2 in right valve, separated by a deep socket. Pallial sinus very shallow, reduced to a faint undulation under the posterior adductor scar. Inner margins faintly crenulate.

Synonym (s)
Gafrarium dispar (Chemnitz, 1795)
Gafrarium pectinatum (Linnaeus, 1758)
Venus dispar Holten, 1802
Venus dispar Dillwyn, 1817

Common Name (s)
Economic Importance and Threats
Importance:  Commercial
(Collected for food and commonly marketed)

Habitat:  Sandy, Muddy


• Red Sea
• Tamil Nadu, Mandapam INDIA
• Gujarat, Saurashtra INDIA
• Tamil Nadu, Gulf of Mannar (Lat: 78.13) (Long: 8.58) INDIA (Record: 01/1994-12/1995)
• Tamil Nadu, Gulf of Mannar (Lat: 79.5) (Long: 9.33) INDIA (Record: 01/1994-12/1995)

Literature Source(s)
  • Nagabhushanam, AK and Krishnan, S (1993) Observations on the distribution of some of the marine organism inhabiting the inter-tidal zone along the western continental shelf of the Bay of Bengal, with particular reference to the Tamil Nadu coastal strip Records of the Zoological Survey of India 93(3-4) 449-490 Available at - ZSI, Pune
  • Ray, HC (1977) Contribution to the knowledge of the molluscan fauna of Maungmagan, Lower Burma (with descriptions of one new genus and species of the Family Turridae (Gastropoda) 8) Contribution to the knowledge of the molluscan fauna of Maungmagan, Lower Burma (with descriptions of one new genus and species of the Family Turridae (Gastropoda) 8) Indian Museum, Calcutta 1-150 Available at - Zoological Records (Burma marine)
  • Shanmugam, A; Rajagopal, S and Nazeer, RA Common bivalves of Parangipettai coast Available at - NIO, Goa
  • Society for the Management of European Biodiversity Data (2009) World Register of Marine Species (WoRMS) Available at -
  • Poutiers, JM (1998) Bivalves FAO species identification guide for fishery purposes. The living marine resources of the western central Pacific. Volume 1: Seaweeds, corals, bivalves and gastropods FAO, Rome 1 686 pp Available at -
  • Sundaram, KS; Sarvesan, R; Mohamed, KH and Shanbhogue, SL (1969) Catalogue of molluscs, prawns, stomatopods and marine algae in the reference collections of the central marine fisheries research institute Bulletin Of Central Marine Fisheries Research Institute CMFRI, Cochin 9 1-52 Available at -
  • Dholakia, AD (2004) Marine resources Fisheries and aquatic resources of India Daya publishing house 271-303 Available at - NIO, Goa
  • Hameed, PS and Somasundaram, SSN (1998) A survey of bivalve molluscs in Gulf of Mannar, India Indian Journal of Fisheries Indian journal of Fisheries for the Indian Council of Agricultural Research, Kochi, India 45(2) 177-181 Available at -

Page last updated on:2012-03-09

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