Pleurotomariidae, common name the "slit snails", is a family of large marine gastropods in the superfamily Pleurotomarioidea of the subclass Vetigastropoda. This family is a very ancient lineage; there were numerous species in the geological past. The genus includes several hundred fossil forms, mostly Paleozoic. It is one of the oldest gastropod families, commencing in the Cambrian.
Perotrochus is a genus of large sea snails with gills and an operculum, marine gastropod mollusks in the family Pleurotomariidae, the slit snails,.
Perotrochus amabilis, common name the lovely slit shell, is a species of sea snail, a marine gastropod mollusk in the family Pleurotomariidae.
Bayerotrochus boucheti is a species of sea snail, a marine gastropod mollusk in the family Pleurotomariidae.
Perotrochus tosatoi is a species of sea snail, a marine gastropod mollusk in the family Pleurotomariidae.
Mikadotrochus is a genus of sea snails, marine gastropod mollusks in the family Pleurotomariidae, the slit snails.
Macleaniella is a genus of deep-sea limpets in the family Cocculinidae.
Perotrochus atlanticus is a species of sea snail, a marine gastropod mollusk in the family Pleurotomariidae.
Notocrater houbricki is a species of small sea snail, a marine gastropod mollusk in the family Pseudococculinidae, the false limpets.
Notocrater youngi is a species of small sea snail, a marine gastropod mollusk in the family Pseudococculinidae, the false limpets.
Bayerotrochus indicus is a species of large sea snail, a marine gastropod mollusk in the family Pleurotomariidae, the slit snails.
Mikadotrochus salmianus, common name the Salmiana slit shell, is a species of large sea snail, a marine gastropod mollusk in the family Pleurotomariidae, the slit snails.
Perotrochus anseeuwi is a species of large sea snail, a marine gastropod mollusk in the family Pleurotomariidae, the slit snails.
Bayerotrochus charlestonensis is a species of large sea snail, a marine gastropod mollusk in the family Pleurotomariidae, the slit snails.
Perotrochus deforgesi is a species of large sea snail, a marine gastropod mollusk in the family Pleurotomariidae, the slit snails.
Perotrochus lucaya, common name the Lucayan slit shell, is a species of large sea snail, a marine gastropod mollusk in the family Pleurotomariidae, the slit snails.
Perotrochus metivieri is a species of large sea snail, a marine gastropod mollusk in the family Pleurotomariidae, the slit snails.
Perotrochus oishii is a species of large sea snail, a marine gastropod mollusk in the family Pleurotomariidae, the slit snails.
Perotrochus quoyanus is a species of large sea snail, a marine gastropod mollusk in the family Pleurotomariidae, the slit snails.
Perotrochus vicdani is a species of large sea snail, a marine gastropod mollusk in the family Pleurotomariidae, the slit snails.
