Onyx
cowrie
Cypraea onyx
Family Cypraeidae
updated
Aug 10
Where
seen? This
stunning snail with a golden-brown shell is sometimes seen on our
undisturbed Northern shores, in silty sandy areas near seagrasses
and coral rubble. Elsewhere, it is found in coral rubble and muddy
areas including mangroves.
Features: 3-4cm. Shell is pear-shaped, dark brown often
with two or three bands of gold across it. The underside is black
with an orange tinge on the 'teeth'. The mantle may be golden yellow
speckled with black spots, white blotches and short white projections.
Sometimes mistaken for a sea
slug. When the shell is completely covered in its mantle, it is
sometimes mistaken for a sea slug. Here's more on how
to tell apart slugs and animals that look like slugs.
Human uses: It is collected for subsistence food by coastal dwellers
and the shell for the shell trade. |

East Coast,
Nov 08
Side view.
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Close up of 'teeth'.
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Underside covered with mantle.
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Onyx
cowries on Singapore shores

With mantle covering shell.
Pulau Sekudu, Jul 05
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Shell exposed.
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Underside.
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Chek Jawa, Jan 02
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Pulau Sekudu, Jun 05
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Pulau Sekudu, Jun 04
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more photos of onyx
cowries on Singapore shores
part 1 | part 2
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Links
- Onyx
cowrie (Cypraea onyx) on SeaLife Base: Technical
fact sheet.
- Onyx cowrie
(Cypraea onyx) 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
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