Cymbuliidae is a family of pelagic sea snails or "sea butterflies", marine gastropod mollusks in the superfamily Cymbulioidea.
Turbonillinae is a subfamily of mostly minute parasitic sea snails, marine gastropod molluscs in the family Pyramidellidae, the pyrams and their allies.
Neritidae, common name the nerites, is a taxonomic family of small to medium-sized saltwater and freshwater snails which have a gill and a distinctive operculum.
Trimusculus is a genus of medium-sized air-breathing sea snails or false limpets, marine pulmonate gastropod molluscs in the family Trimusculidae.
The Vermetidae, the worm snails or worm shells, are a taxonomic family of small to medium-sized sea snails, marine gastropod molluscs in the clade Littorinimorpha. The shells of species in the family Vermetidae are extremely irregular, and do not resemble the average snail shell, hence the common name "worm shells" or "worm snails".
Amathinidae, is a taxonomic family mostly consisting of small and minute sea snails, marine heterobranch gastropod molluscs or micromolluscs in the superfamily Pyramidelloidea.
Crepidula, commonly known as the slipper snails, slipper limpets, or slipper shells, is a genus of sea snails, marine gastropod mollusks in the family Calyptraeidae. This family includes the slipper snails (Crepidula), hat snails (Calyptraea), spiny slipper snails (Bostrycapulus), and cup-and-saucer snails (Crucibulum) as well as Crepipatella, Siphopatella, Grandicrepidula, and Maoricrypta.
Bathysciadiidae is a family of sea snails, deep-sea limpets, marine gastropod mollusks in the clade Cocculiniformia.
Iravadiidae is a family of minute sea snails, marine gastropod molluscs in the superfamily Truncatelloidea and the clade Littorinimorpha.
Bathysciadium is a genus of sea snails, deep-sea limpets, marine gastropod mollusks in the family Bathysciadiidae.
Diala is a genus of sea snails, marine gastropod mollusks in the family Dialidae.
Acliceratia beddomei is a species of very small somewhat amphibious land snail with a gill and an operculum, a semi-terrestrial gastropod mollusk or micromollusk in the family Iravadiidae.
Toledonia is a genus of sea snails, marine gastropod molluscs in the family Cylichnidae.
Crenella is a genus of bean mussels in the family Mytilidae.
Cremnoconchus is a genus of small freshwater snails, gastropod mollusks in the family Littorinidae, the winkles or periwinkles.
Iravadia is a genus of very small, somewhat amphibious land snails that have a gill and an operculum, semi-terrestrial gastropod mollusks or micromollusk in the family Iravadiidae.
Liroceratia is a genus of very small, somewhat amphibious land snails that have a gill and an operculum, semi-terrestrial gastropod mollusks or micromollusk in the family Iravadiidae.
Hyala is a genus of very small, somewhat amphibious land snails that have a gill and an operculum, semi-terrestrial gastropod mollusks or micromollusks in the family Iravadiidae. They are subsurface deposit feeders.
Nozeba is a genus of very small, somewhat amphibious land snails that have a gill and an operculum, semi-terrestrial gastropod mollusks or micromollusk in the family Iravadiidae.
Rissopsis is a genus of very small, somewhat amphibious land snails that have a gill and an operculum, semi-terrestrial gastropod mollusks or micromollusk in the family Iravadiidae.
