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Phylum Mollusca > Class Gastropoda > Family Muricidae
Mangrove murex
Chicoreus capucinus
Family Muricidae
updated Aug 2020
Where seen? This large and rather elaborately textured drill is sometimes seen on mangrove trees. Feeding on the barnacles growing on mangrove trunks and other hard surfaces in mangroves. It is also called 'Ketem' in Malay.

Features: 4-5cm, up to 9cm long. Shell thick with sculptured ridges down the length. The shell, however, is often hidden by encrusting plants and animals such as barnacles. Shell opening circular with 'teeth' on the inner edge.
Long siphonal canal. Operculum dark.

Pasir Ris Park, Oct 09

Pasir Ris Park, Oct 09

Sungei Buloh, Mar 05
What does it eat? It eats a wide variety of prey from barnacles, nest-building mussels to snails and clams hiding in the mud and worms in rotten wood. They are such voracious predators, that they exert a considerable influence over the kind of community of animals that are found where they are live.

Kranji Nature Trail, Feb 11

Egg capsules?

Feeding on Little black mussels?
Lim Chu Kang, Aug 05

Mangrove murex on Singapore shores
On wildsingapore flickr



  • Chan Sow-Yan & Lau Wing Lup. 30 June 2020. Comparison of juvenile and adult mangrove murex, Chicoreus capucinus. Singapore Biodiversity Records 2020: 76-77 ISSN 2345-7597
  • 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.
  • K. S. Tan. 2008. Mudflat predation on bivalves and gastropods by Chicoreus capucinus (Neogastropoda: Muricidae) at Kungkrabaen Bay, Gulf of Thailand. Raffles Bulletin of Zoology Supplement Series No. 18: 235-245.
  • Tan, K. S. & L. M. Chou, 2000. A Guide to the Common Seashells of Singapore. Singapore Science Centre. 160 pp.
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