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Phylum Mollusca > Class Gastropoda > Family Nassariidae
Prickly whelk
Nassarius echinatus*
Family Nassariidae
updated Aug 2020
Where seen? This tiny whelk with fine pointed bumps on its shell is sometimes seen on sandy shores near reefs and sandy man-made lagoons, also on seaweed blooms. Often in small groups of a few snails. It is probably common but overlooked.

Features: About 1cm. Shell thick conical with neat pattern of regular fine bumps and fine brown lines. Body pale with white spots, very long siphon, short tentacles. Operculum thin yellowish often with a dark or black blotch.

Sentosa, Sep 08

*ID tentative. Species are difficult to positively identify without close examination.
On this website, they are grouped by external features for convenience of display.

Prickly whelks on Singapore shores
On wildsingapore flickr

Other sightings on Singapore shores

Sembawang Park, Jan 12
Photo shared by Marcus Ng on flickr.


  • Tan Siong Kiat and Henrietta P. M. Woo, 2010 Preliminary Checklist of The Molluscs of Singapore (pdf), Raffles Museum of Biodiversity Research, National University of Singapore.
  • Tan, K. S. & L. M. Chou, 2000. A Guide to the Common Seashells of Singapore. Singapore Science Centre. 160 pp.
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