Pseudonerita obtusa   (Benson)  (Sea Snail)
Organism information awaits expert curation
Class: Gastropoda

Image copyrights: Government of India

Length: 6.85-9.25 mm.
Diameter: 8.60-13.78 mm.
Max height of the aperture: 6.00-9.30 mm.

Color: Olive green, body whorl often with a dark green spiral band. Operculum externally brown, flesh-red along the palatal margin, dark-gray along the parietal margin, finely striated dark red membranous fringe, internal surface smooth and dark brown, rib very oblique and blunt, orange yellow with tip being lighter, peg sharp and yellow.

Shell small, transversely ovate, lateral whorls three, decussately striated, spiral striae very fine, body whorl with a dark green or spiral band; aperture orbicularly ovate, columellar area excavated, columellar callus porcellaneous; operculum semi lunar.

Synonym (s)
Neritina obtusa Benson, 1836
Neritina spiralis Reeve, 1855

Common Name (s)
Economic Importance and Threats



• West Bengal, Kolkata INDIA
• West Bengal, Hugli River INDIA
• Andaman and Nicobar Islands, Andaman Islands INDIA

Literature Source(s)
  • Subba Rao, NV; Dey, A and Barua, S (1992) Estuarine and marine molluscs Fauna of West Bengal Part 9 (State fauna series 3) ZSI, Calcutta 129-268 Available at - NIO, Goa
  • Society for the Management of European Biodiversity Data (2009) World Register of Marine Species (WoRMS) Available at -
  • Subba Rao, NV (2003) Indian seashells Records of the Zoological Survey of India ZSI, Kolkata (Part 1) 416 pp Available at - NCL, Pune

Page last updated on:2012-06-15

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