Fissurellidae
| Keyhole limpet Temporal range: | |
|---|---|
| A group of shells of Diodora cayenensis | |
| Scientific classification | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Gastropoda |
| Subclass: | Vetigastropoda |
| Order: | Lepetellida |
| Superfamily: | Fissurelloidea Fleming, 1822 |
| Family: | Fissurellidae Fleming, 1822 |
| Type genus | |
| Diodora J. E. Gray, 1821 | |
| Genera and species | |
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See text | |
Fissurellidae, common name the keyhole limpets and slit limpets, is a taxonomic family of small to medium-sized 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 "true" limpets, they are in fact not closely related to them.