Heliacus implexus (Mighels, 1845)
6.9mm

Heliacus implexus is a tiny sundial that has been found both on the seaward reef and in lagoon algae patches.

Underside. Note the yellowish, cone-shaped operculum used to close up the aperture when the animal retracts into the shell.

Very flat, disk-shaped shell.

Created 18 April 2017
Update 25 June 2019

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