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Ribbed
turban snail
Turbo intercostalis
Family
Turbinidae
updated
Oct 2016
Where
seen? Among the most commonly encountered of our turban
snails on our shores, this chubby snail is often seen on rocky shores
and under coral rubble near living reefs. There are suggestions
that Turbo intercostalis=Turbo ticaonicus=Turbo bruneus.
Features: 3-5cm, up to 6cm. Shell
thick with many smooth spiral cords. Chalky operculum is hemi-spherical
and smooth, dark green centre with yellowish and white margins. There
is a fine ridge on the outside of the operculum and perforation in
the centre. Sometimes, the operculum of a dead snail is washed ashore.
It is sometimes called a 'cat's-eye'. Body greenish with brown mottles,
a pair of slender tentacles.
Sometimes confused with the Top
shell snail (Family Trochidae) has a more pyramidal shell and
a thin operculum made of a horn-like material. While the turban shell
snail has a shell with more distinct whorls and a thick, chalky operculum.
Here's more on how to tell apart turban
and top shell snails. |
Labrador,
May 05 |
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Human uses: It is collected for
food by coastal dwellers. |
Ribbed
turban snails on Singapore shores |
Other sightings on Singapore shores |
Pulau Tekukor, Jan 22
Photo shared by Vincent Choo on facebook. |
St John's Island, Jan 09
Photo shared by Loh Kok Sheng on flickr. |
Terumbu Hantu, Jul 20
Photo shared by Shawne Goh on facebook. |
Pulau Semakau South, Feb 16
Photo shared by Jianlin Liu on facebook. |
Pulau Semakau North, Jul 24
Photo shared by Tommy Tan on facebook. |
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Terumbu
Pempang Tengah, May 11
Photo shared by Ivan Kwan on flickr. |
Pulau Salu, Apr 21
Photo shared by Vincent Choo on facebook. |
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Acknowlegement
With grateful thanks to Tan Siong Kiat of the Raffles Museum of
Biodiversity Research for identifying this snail.
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.
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