Triton
snails
Family Ranellidae
updated
Oct 10
Where
seen?
The commonly seen triton snail is rather small and boring. It is usually
found under stones on our Northern shores.
Features: The larger
species of triton snails are better known. They can grow to 50cm up
to 1m long! Many of them have a hairy covering on the shell. The operculum
is made of a horn-like material and is thick and brown. They are found
in sandy and rocky habitats, many are only found offshore in deeper
waters. They were previously placed in Family Cymatiidae.
What do they eat? Some large tritons
eat living sea stars and sea cucumbers. Others may prey on other snails
and on clams, or ascidians. The prey is often first paralysed with
an acidic salivary secretion before it is devoured.
Human uses: In the past, large
specimens were used a trumpets. Thus another common name for theirs
shells is Trumpet shells. |
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Family
Ranellidae recorded for Singapore
from
Tan Siong Kiat and Henrietta P. M. Woo, 2010 Preliminary Checklist
of The Molluscs of Singapore.
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Biplex
perca
Cymatium caudatum
Cymatium cutaceum
Cymatium labiosum
Cymatium pfeifferianum
Cymatium tranquebaricum
Gyrineum bituberculare
Gyrineum natator (Common
triton snails)
Gyrineum gyrinum
Gyrineum lacunatum |
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Links
- Family
Ranallidae
on The
Gladys Archerd Shell Collection at Washington State University
Tri-Cities Natural History Museum website:
brief description and photos.
- Family
Ranallidae in
the Gastropods section by J.M. Poutiers in the FAO Species Identification
Guide for Fishery Purposes: The Living Marine Resources of the
Western Central Pacific Volume
1: Seaweeds, corals, bivalves and gastropods on the Food and
Agriculture Organization of the United Nations (FAO) website.
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.
- Wee Y.C.
and Peter K. L. Ng. 1994. A First Look at Biodiversity in Singapore.
National Council on the Environment. 163pp.
- Ng, P. K.
L. & Y. C. Wee, 1994. The
Singapore Red Data Book: Threatened Plants and Animals of Singapore
.
The Nature Society (Singapore), Singapore. 343 pp.
- Abbott, R.
Tucker, 1991. Seashells
of South East Asia
.
Graham Brash, Singapore. 145 pp.
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