Donax (Paradonax) nuxfagus   Preston  (Clam)
Organism information awaits expert curation
Class: Bivalvia

Size: Length 13.50 mm; height 8.55 mm; width 4.32 mm

Color: Yellowish

Shell elongately oblong, yellowish color. Anterior margin rounded; ventral margin slightly convex; anterior-dorsal margin steeply sloped; posterior margin short and convex. Sculptured with fine concentric striae more prominent on posterior side; internal margin strongly denticulate. Umbos posterior, ligament short, sunken, lunule on both then valves.
In the left valve the cardinal complex consists of a thin laminate anterior tooth and triangular, thick, bifid posterior tooth; anterior lateral absent; posterior lateral distinct and proximal to the cardinal complex. In the right valve the cardinal complex consists of a strong, bifid anterior tooth and a lamellate posterior tooth; lateral teeth absent.
Adductor muscle scars well developed. Anterior adductor scar oblong; posterior adductor scar rounded. Sinus equal in both the valves. Sinus rises from the posterior adductor scar and almost in a circular fashion and in confluence with pallial line only at the end.

Synonym (s)
Donax nuxfagus Preston, 1908

Common Name (s)
Economic Importance and Threats



• Andaman and Nicobar Islands, Andaman Islands INDIA
• 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 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:2012-07-27

Back to Search