Diodora

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Like all other fissurellids, Diodora species are herbivores, and use the radula to scrape algae from rocks. An exception is D. apertura, which grazes on sponges^[2][3] such as Hymeniacidon.^[4]

Water for respiration and excretion is drawn in under the edge of the shell and exits through the "keyhole" at or near the apex.

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