Cyclostoma
Cyclostoma is an obsolete genus name of operculate snails with circular aperture.
This genus has become a synonym of Epitonium Röding, 1798
Species brought into synonymy
Cyclostoma scalare : synonym of Turbo scalaris Linnaeus, 1758, synonym of Epitonium scalare Cyclostoma elegans : synonym of Nerita elegans O.F. Müller 1774, synonym of Pomatias elegans Cyclostoma acutum Draparnaud, 1805: synonym of Hydrobia acuta acuta Cyclostoma breve Draparnaud, 1805: synonym of Avenionia brevis Cyclostoma cincinnatiensis I. Lea, 1840: synonym of Pomatiopsis cincinnatiensis Cyclostoma concinnum Scacchi, 1836: synonym of Truncatella subcylindrica Cyclostoma costulatum Rossmässler, 1837: synonym of Pomatias rivularis Cyclostoma delicatum Philippi, 1844: synonym of Torellia delicata Cyclostoma gibbum Draparnaud, 1805: synonym of † Belgrandia gibba Cyclostoma lapidaria Say, 1817: synonym of Pomatiopsis lapidaria Cyclostoma marginatum Say, 1821: synonym of Pupoides albilabris- † Cyclostoma rubeschi Reuss in Reuss & Meyer, 1849 : synonym of † Staadtiellopsis rubeschi Cyclostoma subdisjuncta H. Adams, 1868: synonym of Tubiola subdisjuncta Cyclostoma truncatulum Draparnaud, 1801: synonym of ''Truncatella subcylindrica''