New species of Rissoidae (Mollusca Gastropoda) from the Archipelago of the Azores (northeast Atlantic) with an updated regional checklist for the family

摘要

Four new species of shallow-water marine gastropods belonging to the family Rissoidae are described from the Archipelago of the Azores: Setia alexandrae >sp. n., Setia ermelindoi >sp. n., Setia netoae >sp. n., and Manzonia martinsi >sp. n. These novelties increase the regional rissoid fauna to 39 species, of which 29 live in shallow-water habitats. A list of the species of Rissoidae from the Azores is presented based on data from the literature and new material examined.