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Phylum Mollusca > Class Gastropoda > Family Cerithiidae
Obelisk creeper snail
Rhinoclavis sinensis*
Family Cerithiidae
updated Oct 2016
Where seen? This large creeper snail with an elegant shell is commonly seen on our Southern shores, usually alone. Often seen burrowing in sandy areas near reefs, or found among seaweeds on coral rubble near reefs. Elsewhere on reef flats, sandy and coral rubble bottoms and lagoons.

Features: 3-7cm long. Shell conical with a pattern of white spiralling large notched bumps with fine ridges of dashed dots in between. Shell opening large with flared lip and upturned spout at tip. Operculum made out of a horn-like material, whorls not easily seen. Animal with mottled body.

They are preyed upon by other snails such as Drills (Family Muricidae) as well as by crabs.

Human uses: Where they are abundant, they may be collected for food and for their shell.

Sentosa, Oct 08

St. John's Island, Sep 07

Mating?
Sisters Island, May 07

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

Obelisk creeper snails on Singapore shores

Photos of Obelisk creeper snails for free download from wildsingapore flickr

Distribution in Singapore on this wildsingapore flickr map


Labrador, Oct 14
Photo shared by Loh Kok Sheng on facebook.

Terumbu Selegie, Jan 17
Photo shared by Loh Kok Sheng on facebook.

Pulau Biola, Dec 09
Photo shared by Loh Kok Sheng on his 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.
  • Abbott, R. Tucker, 1991. Seashells of South East Asia. Graham Brash, Singapore. 145 pp.
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