Retusidae

Retusidae is a family of very small sea snails, barrel-bubble snails, marine opisthobranch gastropod mollusks. These are headshield slugs, in the superfamily Bulloidea.

==Genera== Genera within the family Retusidae include: Pyrunculus Pilsbry, 1895 Relichna Rudman, 1971 Retusa T. Brown, 1827 Sulcoretusa J.Q. Burch, 1945 Genera brought into synonymy: Coleophysis: synonym of Retusa T. Brown, 1827 Cylichnina Monterosato, 1884: synonym of Retusa T. Brown, 1827 Mamilloretusa F. Nordsieck, 1972 accepted as Retusa T. Brown, 1827 Sao H. Adams & A. Adams, 1854 accepted as Pyrunculus Pilsbry, 1895 Sulcularia Dall, 1921 accepted as Sulcoretusa J.Q. Burch, 1945 Utriculus T. Brown, 1844 accepted as Retusa T. Brown, 1827