Littoraria is a genus of sea snails, marine gastropod mollusks in the family Littorinidae, the winkles or periwinkles. There are more than fifty species in this genus of which more than 20 species are believed to be synonyms of Littorina scabra, a very variable species. Within this genus, Littoraria aberrans is the only ovoviviparous species with an intracapsular metamorphosis.