The top shell (and hermit crab) Mollusca, Gastropoda
Monodonta ³æ¾¦Á³, one of the abundant intertidal organisms.
Dorsal (left) and ventral (right) view
Right : operculum or lid partly open, the " tooth " is clearly seen.
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Operculum closed.
Ventral muscular foot
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Feeding : it has a " radula " to scrape off algae on rock.
Further investigation ?
Behaviour : the Monodonta is repelled by whelk.