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Phylum Mollusca > Class Gastropoda > Family Nassariidae
Black whelk
Nassarius pullus
Family Nassariidae
updated Aug 2020
Where seen? This little whelk with a broad base on the underside is sometimes seen in sandy areas on our Southern shores.

Features: 1.5-2cm. Shell thick conical with neat, regular ridges. Shell plain brown or bluish grey often with two smudgy broad darker bands. Underside with a distinctive broad flat white smooth base, a dark blotch in the centre and 'teeth' at the shell opening. Body pale. Pperculum thin and yellow.

Sisters Islands, Feb 06

Black whelks on Singapore shores
On wildsingapore flickr

Kusu Island, Aug 17
Photo shared by Marcus Ng on flickr.

Links References
  • 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.
  • Bunjamin Dharma. 1988. Indonesian shells (Siput dan Kerang Indonesia). PT Sarana Graha. Indonesia. 111 pp.
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