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Creeper
snails
Family
Cerithiidae
updated
Dec 08
Where
seen?
Tiny creeper snails are common on our shores but often overlooked.
They may be found on sandy shores, coral rubble and reefs on many
of our shores.
Features: 2 2.5cm. Shell
long and narrow, distinguished by an upturned siphonal canal at the
opening that looks like a little spout. This protects the siphon as
the snail hides just beneath the sand. The shell opening is oval,
and the operculum is made of a horny material usually brown usually
with only a few whorls.
What do they eat? Creeper snails
are often found in groups of many individuals packed close to one
another. They feed on algae and detritus on the sea bottom, often
near reefs.
Role in the habitat: Should the
tiny snail die, the empty shell is often taken over by tiny
hermit crabs.
Human uses: Some of the prettier species are collected
for the shell trade.
Status and threats: Traill's creeper
(Cerithium trailli) is listed as 'Endangered' on the Red List
of the threatened animals of Singapore, as shores where it was originally
found have been lost to reclamation. Like other creatures of the intertidal
zone, Creeper snails are affected by human activities such as reclamation
and pollution. Trampling by careless visitors and over-collection
can also have an impact on local populations. |

Pulau Jong, Jul 06

Shell opening.
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Family
Cerithiidae recorded for Singapore
from
Wee Y.C. and Peter K. L. Ng. 1994. A First Look at Biodiversity
in Singapore.
*from Tan, K. S. & L. M. Chou, 2000. A Guide to the Common Seashells
of Singapore.
in red are those isted among the threatened
animals of Singapore from Davison, G.W. H. and P. K. L. Ng
and Ho Hua Chew, 2008. The Singapore Red Data Book: Threatened
plants and animals of Singapore.
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Creeper
snails commonly seen awaiting identification
Species are difficult to positively identify without
close examination.
On this website, they are grouped by external features for convenience
of display. |
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Cerithium
chemnitsianum
Cerithium clypeomorus
Cerithium coralium (Coral creeper)
Cerithium lemnniscatum
Cerithium morus
Cerithium obesum
Cerithium patalum
Cerithium robustum
Cerithium trailli (Traill's
creeper) (EN: Endangered)
*Clypeomorus pellucidus (Pellucid
creeper snail) |
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Links
- Family
Cerithiidae on
The
Gladys Archerd Shell Collection at Washington State University
Tri-Cities Natural History Museum website:
brief description and photos.
References
- 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.
- Davison,
G.W. H. and P. K. L. Ng and Ho Hua Chew, 2008. The Singapore
Red Data Book: Threatened plants and animals of Singapore.
Nature Society (Singapore). 285 pp.
- Abbott, R.
Tucker, 1991. Seashells
of South East Asia
.
Graham Brash, Singapore. 145 pp.
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