Placuna ephippium   (Philipsson,  1788) (Oyster)
Organism information awaits expert curation
Class: Bivalvia

Image Copyrights: Joop Trausel & Frans Slieker

Size: 7.8 cm in length.

Colour: Light brown in colour with black patches are present on both side.Shiny and silky appearance.

Shell thin, fragile and flat. Moderately large, outer surface of the shell slightly rough, concentric lines widely developed. Shell almost transparent. Inner surface of the shell smooth and glossy. Umbo small, two hinge teeth well developed. Adductor muscle scar present at center of valve.

Synonym (s)
Anomia sella Gmelin, 1791
Ephippium polonicum Roding, 1798
Placenta ephippium Philipsson, 1788
Sellaria anglicana Link, 1807

Common Name (s)
Economic Importance and Threats
Importance:  Commercial
(The shells used as a glass substitute in glazing; used in the manufacture of trays, lampshades and numerous decorative items. Flesh eaten.)

Habitat:  Coastal


• Tamil Nadu, Gulf of Mannar INDIA
• Tamil Nadu, Mandapam (Lat: 8.78) (Long: 78.2) INDIA
• Tamil Nadu, Mandapam (Lat: 9.25) (Long: 79.23) INDIA

Literature Source(s)
  • Stella, C; Serebiah, JS and Siva, J (2010) New Distributional Records of Placuna ephippium (Reizius 1788) Family: Placunidae from Mandapam Area -South East Coast of India World Journal of Fish and Marine Sciences IDOSI Publications 2 (1) 40-41 Available at -
  • Society for the Management of European Biodiversity Data (2009) World Register of Marine Species (WoRMS) Available at -
  • Natural History Museum Rotterdam Available at -

Page last updated on:2011-02-02

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