Donax (Latona) incarnatus   Gmelin  (Clam)
Organism information awaits expert curation
Class: Bivalvia

Size: Length 7.26-18.31 mm; width 5.52-14.43 mm; height 2.6-9.12 mm

Shell medium in size, triangular, compressed, and variously colored. Umbos posterior. Anterior margin rounded; ventral margin convex, serrated; anterior-dorsal margin long, straight and sloping gradually; posterior-dorsal margin slightly convex and serrated; posterior margin short and serrated. Sculptured with fine thread-like concentric and radial striae, the posterior portion where the concentric striae are rugose like and crossed by prominent radial striae giving punctate appearance. Ligament short, brown, lunule small and present on both the valves.
In the left valve the cardinal complex consists of a thin anterior tooth and a triangular thick posterior tooth; laterals present; anterior lateral formed by the thickening on the hinge line and distal, whereas the posterior lateral deltoid, strong and proximal to the cardinal complex. In the right valve the cardinal complex consists of a triangular, bilobed cardinal tooth; laterals very strong and with space to accommodate the laterals of left valve.
Adductor muscles scars moderately developed. Anterior adductor scar semilunar, whereas the posterior adductor scar circular shape with elongated anterior end. Sinus poorly developed and equal on both the valves. Sinus rises from posterior adductor scar in almost oval shape, with rounded anterior and convex ventral end and falls obliquely to the pallial line and in confluence with it.

Synonym (s)
Donax incarnatus Chemintz 1182
Donax incarnatus Gmelin 1791
Donax dysoni Deshayes 1854
Donax incarnatus Reeve 1854
Donax trigonalis Preston 1908
Donax incarnatus Hornell 1951
Donax incarnatus Satyamurti 1956
Donax incarnatus Schroeter 1788
Donax (Latona) incarnatus Subba Rao and Dey 1986
Donax incarnata Gmelin 1791

Common Name (s)
Economic Importance and Threats

Habitat:  Coastal


• Andhra Pradesh, Machilipatnam INDIA
• Gujarat, Bhavnagar INDIA
• Maharashtra, Mumbai INDIA (Record: 1986, 1991)
• Orissa, Chandipur INDIA (Record: 1986, 1991)
• Tamil Nadu INDIA (Record: 1986, 1992)
• West Bengal, Digha INDIA (Record: 10/03/1966, 1986, 1992)
• Andaman and Nicobar Islands INDIA
• West Bengal, Ganga Sagar beach INDIA (Record: 03/09/1979)
• West Bengal, Bakkhali INDIA (Record: 19/04/1980, 1982, 1984)
• West Bengal, Medinipur INDIA (Record: 1992)
• West Bengal, South 24 Parganas INDIA (Record: 1992)
• Gujarat INDIA (Record: 1992)
• Maharashtra INDIA (Record: 1992)
• Orissa INDIA (Record: 1992)
• Pondicherry INDIA (Record: 1992)
• MADAGASCAR (Record: 1992)
• MYANMAR (Record: 1992)
• West Bengal, Old Digha INDIA (Record: 07/2000-06/2001)
• West Bengal, Sankarpur INDIA (Record: 07/2000-06/2001)
• Tamil Nadu, Tharangambadi INDIA (Record: 1991)
• Tamil Nadu, Pamban INDIA (Record: 1991)
• Pondicherry, Karaikal INDIA (Record: 1991)
• Maharashtra, Ratnagiri INDIA (Record: 1991)
• Gujarat, Kuda INDIA (Record: 1991)
• Andaman and Nicobar Islands, Andamans INDIA

Literature Source(s)
  • Society for the Management of European Biodiversity Data (2009) World Register of Marine Species (WoRMS) Available at -
  • Subba Rao, NV and Dey, A (1986) Contributions to the knowledge of Indian marine molluscs 2. Family Donacidae Records of the Zoological Survey of India. Occasional paper no. 91 ZSI, Calcutta 30 pp Available at - NIO, Goa
  • 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
  • Khalua, RK; Chakravarty, G and Chakraborty, SK (2003) Annotated list of molluscs from the coastal tract of Midnapore District, West Bengal, India Journal of the Marine Biological Association of India The Marine Biological Association of India, Cochin 45(2) 245-249 Available at - NIO, Goa
  • 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
  • Subba Rao, NV and Dey, A (2000) Catalogue of marine molluscs of Andaman and Nicobar Islands Occasional paper no 187 Records of the Zoological Survey of India ZSI 1-323 Available at - NCL, Pune

Page last updated on:2012-07-26

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