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

The shell is relatively more elongate than in Donax lubricus Hanley, but resembles it in the general shape of its outline, and the inner margin of the inner surface being finely toothed. The shell is inequilateral, the posterior side being very short. A sharply defined keel present, extending from the umbos to the posteroventral angle. Keel and the area immediately in front of it are strongly and concentrically ridged, while the area behind the keel is closely decussated with radial and transverse ridges. The lower margin is finely crenulated in correspondence with the fine teeth on the margin.
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, posterior lateral deltoid, strong and proximal to the cardinal complex which consists of a triangular, bilobed cardinal tooth; laterals very strong.
Adductor muscle scars moderately developed. Anterior adductor scar semilunar, posterior adductor scar circular with elongated anterior end. Sinus rises from posterior adductor, almost oval shaped, with rounded anterior end convex, ventral end and falls obliquely to the pallial line and in confluence with it.

Synonym (s)
Donax spinosus Gmelin, 1791
Donax spinosus Gravely, 1941
Donax spinosus Satyamurti, 1956

Common Name (s)
Economic Importance and Threats



• Tamil Nadu 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

Page last updated on:2012-11-07

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