Monetaria annulus

Family : Cypraeidae

 

Monetaria annulus, Cypraeidae

The Monetaria annulus is a small cowry very common in the Red Sea and in the Indo-Pacific, once used as currency by the local populations. The mints were along the coast, mainly on the rocks and on old madreporic formations but also on the sand, just under the tidal zone where this gastropod moves nourishing of algae. The 17-25 mm long shell, smooth and bright, without operculum, has a characteristic golden ring that has given the name to the species. The mantle is black-greenish striped white with simple or ramified papillae having sensory functions. It can cover completely the shell that, furthermore, brilliant as it is, consequently disappears from the sight of the predators © Giuseppe Mazza

 

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