Peringia

Peringia
Peringia ulvae
Scientific classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
Subclass: Caenogastropoda
Order: Littorinimorpha
Family: Hydrobiidae
Subfamily: Hydrobiinae
Genus: Peringia
Paladilhe, 1874

Peringia is a genus of very small snails with gills and an operculum, gastropod mollusks in the family Hydrobiidae.

This genus has become a synonym for Hydrobia Hartmann, 1821.

These snails live in intermediate habitats at high tide level, on mud, in protected estuarine and coastal areas. Because of this habitat these snails are sometimes categorized as marine, sometimes as aquatic in general, and sometimes are included in lists of land snails.