Trochus maculatus Linnaeus, 1758

These are abundant on many shallow lagoon, pinnacle and seaward reefs, usually under rocks but sometimes exposed on the hard substrate.

This one must have had a cap shell attached to its shell, which wore away some of the shell of the Trochus, exposing the nacreous mother-of-pearl layer that underlies the outer layer of shell material. The cap shell must have fallen off quite recently.

Created 4 January 2018

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