Orthogastropoda was a major taxonomic grouping of snails and slugs, an extremely large subclass within the huge class Gastropoda according to the older taxonomy of the Gastropoda.
The Patellogastropoda, common name true limpets and historically called the Docoglossa, are members of a major phylogenetic group of marine gastropods, treated by experts either as a clade or as a taxonomic order.
Neomphalida is an order of deep-sea snails or limpets, marine gastropod mollusks. subclass Neomphaliones .
Neomphaloidea is a superfamily of deep-sea snails or limpets, marine gastropod mollusks. Neomphaloidea is the only superfamily in the order Neomphalida.
Trimusculus is a genus of medium-sized air-breathing sea snails or false limpets, marine pulmonate gastropod molluscs in the family Trimusculidae.
Lepetellidae is a taxonomic family of small deepwater sea snails or limpets, marine gastropod molluscs in the superfamily Lepetelloidea in the clade Vetigastropoda. .
Neolepetopsidae is a family of small deep sea sea snails or true limpets, marine gastropod mollusks in the subclass Patellogastropoda.
Lepetodrilidae is a family of small, deep-sea sea snails, hydrothermal vent limpets, marine gastropod mollusks in the clade Vetigastropoda.
Melanodrymiidae is a family of gastropods belonging to the superfamily Neomphaloidea. This family has no subfamilies.
Peltospiridae is a small family of gastropods that used to belong to the clade Vetigastropoda, but is now included in the clade Neomphalina
Cylichnidae, common name the "chalice bubble snails" or "canoe bubble snails" is a family of sea snails or bubble snails, marine gastropod mollusks in the superfamily Cylichnoidea.
Vetigastropoda is a major taxonomic group of sea snails, marine gastropod mollusks that form a very ancient lineage. Taxonomically the Vetigastropoda are sometimes treated as an order, although they are treated as an unranked clade in Bouchet and Rocroi, 2005.
Bathysciadiidae is a family of sea snails, deep-sea limpets, marine gastropod mollusks in the clade Cocculiniformia.
Seguenzioidea is a superfamily of minute to medium-sized sea snails, marine gastropod mollusks in the clade Vetigastropoda.
Lottioidea is a superfamily of sea snails or limpets, marine gastropod mollusks in the clade Patellogastropoda, the true limpets.
Neolepetopsoidea is the name of a taxonomic superfamily which is now considered to be a synonym of Lottioidea. Previously Neolepetopsoidea was considered to be a family of sea snails, marine gastropod mollusks within the clade Patellogastropoda.
Pyropelta is a genus of small sea snails, deep-water limpets, marine gastropod mollusks in the family Pyropeltidae.
Lepetodrilus is a genus of small, deep-sea sea snails, hydrothermal vent limpets, marine gastropod mollusks in the family Lepetodrilidae.
Peltospira is a genus of sea snails, marine gastropod mollusks in the family Peltospiridae.
Leptogyra is a genus of sea snails, marine gastropod mollusks in the family Melanodrymiidae, belonging to the clade Neomphalina.
