Conical
slipper snail
Desmaulus extinctorium
Family Calyptraeidae
updated Jul 2020
Where
seen? This snail
is often seen on the a shell occupied by a hermit
crab, usually on the outside of the shell. It is not seen as often as the Flat slipper snail, which is white and usually found on the inside of the shell. It was previously known as Calyptraea
extinctorium.
Features: 1-2cm. The shell is
thin, usually forming a pointed conical shape. May be white, pinkish
or even reddish, with fine lines.
Sometimes
confused with limpets which are also gastropods but which
can move about. Here's more on how
to tell apart limpets, slipper snails and similar animals. |
Conical slipper snails on the outside of the shell. Flat slipper snails on the inside.
Changi, Apr 05
|
Conical slipper snail on the outside.
Changi, Jul 10 |
Chek Jawa,
Sep 10
|
On a shell occupied by a hermit crab |
On a living scallop.
Changi, Aug 18 |
Conical
slipper snails on Singapore shores |
Other sightings on Singapore shores |
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.
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