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 "true" limpets, they are in fact not closely related to them.
Emarginula is a genus of small keyhole limpets, marine gastropod molluscs in the family Fissurellidae.
Clanculus is a genus of sea snail, marine gastropod molluscs of the family Trochidae, the top shells.
Diodora is a genus of small to medium-sized keyhole limpet in the family Fissurellidae.
Puncturella is a genus of minute deepwater keyhole limpets, marine gastropod mollusks or micromollusks in the family Fissurellidae, the keyhole limpets and slit limpets.
Fissurisepta is a genus of keyhole limpets, marine gastropod mollusc in the family Fissurellidae.
Cranopsis was previously a genus of sea snails, marine gastropod mollusks in the family Fissurellidae, the keyhole limpets.
Rimula is a genus of sea snails, marine gastropod mollusks in the family Fissurellidae, the keyhole limpets.
Stomatella is a genus of small to medium-sized sea snails, marine gastropod mollusks in the family Trochidae, the top snails and their allies.
The subfamily Emarginulinae, common name keyhole limpets and slit limpets, is a taxonomic subfamily of limpet-like sea snails, marine gastropod molluscs in the family Fissurellidae, the keyhole limpets and slit limpets.
Guido T. Poppe is a Belgian malacologist, shell dealer and author of more than 20 books and publications about shells, mainly about the families Volutidae and Trochidae.
Diodora namibiensis is a species of sea snail, a marine gastropod mollusk in the family Fissurellidae, the keyhole limpets.
Macroschisma, common name the narrow slot limpets, is a genus of sea snails, marine gastropod mollusks in the family Fissurellidae, the keyhole limpets and slit limpets.
Cosmetalepas africana is a species of sea snail, a marine gastropod mollusk in the family Fissurellidae, the keyhole limpets and slit limpets.
Cosmetalepas concatenata, common name the pitted keyhole limpet, is a species of sea snail, a marine gastropod mollusk in the family Fissurellidae, the keyhole limpets and slit limpets.
Puncturella pelex is a species of sea snail, a marine gastropod mollusk in the family Fissurellidae, the keyhole limpets and slit limpets.
Puncturella pileolus is a species of sea snail, a marine gastropod mollusk in the family Fissurellidae, the keyhole limpets and slit limpets.
Puncturella cumingii is a species of sea snail, a marine gastropod mollusk in the family Fissurellidae, the keyhole limpets and slit limpets.
The Zeidorinae, common name keyhole limpets and slit limpets, is a taxonomic subfamily of limpet-like sea snails, marine gastropod molluscs in the family Fissurellidae, the keyhole limpets and slit limpets.
The Diodorinae, common name keyhole limpets and slit limpets, is a taxonomic subfamily of limpet-like sea snails, marine gastropod molluscs in the family Fissurellidae, the keyhole limpets and slit limpets.
