Orange-mouth
top shell snail
Chrysostoma paradoxum
Family
Trochidae
updated
Sep 2020
Where
seen? This snail is sometimes seen on rocky areas near
living reefs.
Features: 2.5cm. Shell thick heavy, quite spherical with a pointed tip. Shell
smooth, pattern of mottled shades of white and pastel colours with spiralling fine lines. Opening bright orange. Operculum, thin, made
of a horn-like material with concentric rings, yellow.
The flexible operculum allows the animal to withdraw deep into the
coils of the shell. Hopefully, safe from prying
claws of hungry crabs.
Body pale, mantle smooth (not fringed with long tentacles). Large
foot and a pair of long tentacles at the head. |
Pulau Jong,
Apr 13 |
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Orange-mouth
top shell snails on Singapore shores |
Acknowledgements
Grateful
thanks to Chim Chee Kong for identifying this snail.
Links
- Chrysostoma
paradoxum
in SeaBase Life: Technical fact sheet.
- Labio monodont
(Monodontia labio) 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.
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