Superfamily
Fissurelloidea
Diodora aspera. Photo: (c) Robin Gwen Agarwal, some rights reserved (CC BY-NC)
Fissurellidae, common name the keyhole limpets and slit limpets, is a taxonomic family of limpet-like sea snails, marine gastropod molluscs in the clade Vetigastropoda. Their common name derives from the small hole in the apex of their cone-like shells. Although superficially resembling other “true” limpets, they are in fact not closely related to them.
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