Mangrove
ear snail
Cassidula sp.
Family Ellobiidae
updated Jul 2020
Where
seen? This snail is sometimes seen in our back mangroves,
creeping around and on the base of mangrove trees. It breathes air (instead of through gills like
most other marine snails). The shell opening resembles an ear.
Features: 2.5-4cm. Shell thick
and oval, plain black or dark brown with wide white rim around the front. Underside white around the shell opening. Species of mangrove ear snails are not easy to tell apart in the field.
Sometimes confused with the Banded mangrove
ear snail which has bands on its shell and is pink around the shell opening.
What does it eat? It grazes on
algae growing on mangrove trees and on the ground. |
Berlayar
Creek, Mar 09
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Berlayar
Creek, Mar 09 |
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Mangrove
ear snails on Singapore shores |
Links
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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