Fimbria fimbriata   (Linnaeus,  1758) (Clam)
Organism information awaits expert curation
Class: Bivalvia

Image copyrights: Schooner specimen shells

Size: Maximum shell length 9.5 cm, commonly to 7 cm.

Color: Outside of shell porcelaneous white, often with a pinkish hue antero- and posterodorsally. Interior off-white and matt inside the pallial line, bright pale pink on the margins. Hinge often tinged golden yellow anteriorly and posteriorly.

Shell distinctly inequilateral, with the anterior half of valves higher and more rounded than the posterior half which is somewhat tapering posteriorly. Lunule inequivalve, somewhat protruding at right valve and covering the left valve margin. Each valve with a very shallow radial furrow extending obliquely from the umbo to the posterior end of ventral margin, where it produces a slight sinuation. Outer sculpture latticed, with the concentric and radial elements varying in strength and aspect over the different parts of the surface. Concentric ridges relatively coarse, some sinuous and appearing only on central part of shell. Radial ribs strongest and tuberculate on umbonal, anterior, and posterior areas. Radial ribs of central area rather distantly spaced and high, progressively turning into low, indistinct undulations ventrally, with numerous, fine radial riblets occurring between the heavy concentric ridges.

Synonym (s)
Corbis fimbriata (Linnaeus, 1758)

Common Name (s)
Economic Importance and Threats
Importance:  Commercial
(Locally collected and marketed. The shell is also used as raw material for shellcraft and to make lime.)

Habitat:  Sandy


• Andaman and Nicobar Islands INDIA

Literature Source(s)
  • 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
  • OBIS Indo-Pacific molluscan database 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 -
  • Society for the Management of European Biodiversity Data (2009) World Register of Marine Species (WoRMS) Available at -
  • Mayhew, R Schooner specimen shells Available at -

Page last updated on:2010-05-24

Back to Search