Pleurotomariidae

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, (according to the taxonomy of the Gastropoda by Bouchet & Rocroi, 2005).

species of mollusc

Pleurotomaria is an extinct genus of sea snails, marine gastropod molluscs in the family Pleurotomariidae.

species of mollusc

species of mollusc

Bayerotrochus is a genus of sea snails, marine gastropod mollusks in the family Pleurotomariidae.

species of mollusc

species of mollusc

species of mollusc

species of mollusc

species of mollusc

species of mollusc

species of mollusc

species of mollusc

species of mollusc

species of mollusc

Mikadotrochus is a genus of sea snails, marine gastropod mollusks in the family Pleurotomariidae, the slit snails.

species of mollusc

species of mollusc

Entemnotrochus is a genus of large to very large deepwater sea snails with gills and an operculum, marine gastropod mollusks in the family Pleurotomariidae, the slit snails.

species of mollusc

species of mollusc

species of mollusc

species of mollusc

species of mollusc

species of mollusc

species of mollusc

species of mollusc