Mactra luzonica   Reeve,  1854 (Clam)
Organism information awaits expert curation
Class: Bivalvia

Size: Maximum shell length 5 cm, commonly to 3.5 cm

Color: Outside of shell light brownish, with paler and darker concentric bands, often tinged purple dorsally, on umbones, lunule and escutcheon areas. Interior is mauve. Shell color occasionally white externally and internally.

Shell moderately inflated, trigonal-ovate and relatively elongate in outline, sub equilateral. Umbones are a little in front of midline of valves. Dorsal margin is symmetrically slanting towards the rounded anterior and posterior margins. Ventral margin widely and regularly arched. Outside of shell shiny, with a few concentric grooves that are mainly developed near anteroventral margin. Lunule and escutcheon areas concentrically grooved. Periostracum is thin. Lateral hinge teeth well developed, 1 anterior and 1 posterior in left valve, 2 anterior and 2 posterior in right valve. Pallial sinus shallow, broadly rounded, higher than long.

Synonym (s)
Mactra apicina Reeve 1854
(Junior synonym)
Telemactra luzonica (Reeve) 1854
(Senior synonym)

Common Name (s)
Economic Importance and Threats
Importance:  Commercial
(Fisheries. Collected for food in and regularly marketed. Shell used for local shellcraft.)

Habitat:  Estuarine


• Andaman and Nicobar Islands (Lat: 10) (Long: 93) INDIA
• Gujarat, Sangi-Kharo Creek (Lat: 23.28) (Long: 68.51) INDIA (Record: 1999-2000)
• Gujarat, Medi-Sinthodi Creek (Lat: 23.45) (Long: 68.48) INDIA (Record: 1999-2000)
• Andaman and Nicobar Islands, Andamans INDIA

Literature Source(s)
  • (2002) Lakshadweep Islands biodiversity strategy and action plan (Version: 3)
  • 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
  • (1995) Hugali Matla estuary: West Bengal ZSI, Kolkatta 1-542
  • Ramakrishna; Sarkar, J and Talukdar, S (2003) Marine invertebrates of Digha coast and some recomendations on their conservation Records of the Zoological Survey of India ZSI, Kolkata 101(3-4) 1 Available at - NCL, Pune
  • Chandrasekhara, G and Mishra, A (1986) The meiofauna and macrofauna of Digha beach, West Bengal, India Records of the Zoological Survey of India ZSI, Kolkata 83(3-4) Available at - NCL, Pune
  • Sealifebase Available at -
  • 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 -
  • Saravanakumar, A; Serebiah, JS; Thivakaran, GA and Rajkumar, M (2007) Benthic macrofaunal assemblage in the arid zone mangroves of Gulf of Kachchh – Gujarat Journal of Ocean University of China Ocean University of China 6(3) 303 -309 Available at -
  • Natural History Museum Rotterdam Available at -

Page last updated on:2012-07-25

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