The Trochidae, common name top-snails or top-shells, are a taxonomic family of very small to large sea snails, marine gastropod molluscs in the clade Vetigastropoda.
Potamididae, common name potamidids are a family of small to large brackish water snails that live on mud flats, mangroves and similar habitats. They are amphibious gastropod molluscs in the superfamily Cerithioidea.
Truncatella is a genus of very small land snails with an operculum, terrestrial gastropod mollusks in the family Truncatellidae. These small and minute snails live on land, very close to seawater. They walk with a strange looping action, and the adults have truncated shells. Many of the species are small enough to be considered micromollusks.
Boonea is a small genus of small sea snails, pyramidellid gastropod mollusks.
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.
Bittium is a genus of very small sea snails, marine gastropod molluscs in the family Cerithiidae, the horn snails.
Heleobia is a genus of small freshwater and brackish water snails with a gill and an operculum, aquatic gastropod mollusks in the family Cochliopidae and the superfamily Truncatelloidea.
Cylindrobulla is a genus of sea snails or bubble snails, marine gastropod mollusks in the clade Sacoglossa.
Cerithidea is a genus of medium-sized sea snails or mud snails, marine gastropod mollusks in the family Potamididae, the horn snails.
Pirenella alata is a species of sea snail, a marine gastropod mollusk in the family Potamididae. It also lives in brackish water.
Cerithideopsis costata is a species of small sea snail, a marine gastropod mollusk in the family Potamididae.
Cerithideopsis largillierti is a species of sea snail, a marine gastropod mollusk in the family Potamididae.
Cerithideopsis montagnei is a species of sea snail, a marine gastropod mollusk in the family Potamididae.
Cerithidea balteata is a species of snail, a brackish-water gastropod mollusk in the family Potamididae.
Cerithideopsis pliculosa, common name the plicate horn shell, is a species of sea snail, a marine gastropod mollusk in the family Potamididae.
Cerithidea quoyii is a species of brackish water snail, a gastropod mollusk in the family Potamididae.
Cerithideopsis scalariformis, commonly known as the ladder hornsnail, is a species of sea snail, a marine gastropod mollusk in the family Potamididae. This amphibious species occurs in the western Atlantic Ocean, the Caribbean Sea and the Gulf of Mexico. The maximum recorded shell length is 33 mm (1.3 in).
Cerithideopsis californica, common name the California hornsnail or the California horn snail, is a species of sea snail, a marine gastropod mollusk in the family Potamididae. This series was previously known as Cerithidea californica.
Crenella is a genus of bean mussels in the family Mytilidae.
Cerithideopsilla is a genus of medium-sized sea snails or mud snails, marine gastropod mollusks in the family Potamididae, the horn snails.
