[organisms] see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
   Phylum Mollusca Linnaeus, 1758 - molluscs
     Class Gastropoda Cuvier, 1795 - snails and slugs
       Family Epitoniidae Berry, 1910 (1812) - wentletraps
         Genus Epitonium Röding, 1798
           Epitonium aculeatum (Allan, 1818)
           Epitonium algerianum (Weinkauff, 1866)
           Epitonium candidissimum (Monterosato, 1877)
           Epitonium celesti (Aradas, 1854)
           Epitonium clathratulum (Kanmacher, 1798)
           Epitonium commune (Lamarck, 1822)
           Epitonium dallianum (A.E. Verrill & S. Smith, 1880)
           Epitonium delicatulum (H. Adams, 1869)
           Epitonium dendrophylliae Bouchet & Warén, 1986
           Epitonium fischeri (Watson, 1897)
           Epitonium fulvovittatum (Dautzenberg, 1890)
           Epitonium greenlandicum (G. Perry, 1811) - Greenland wentletrap
           Epitonium hispidulum (Monterosato, 1874)
           Epitonium jolyi (Monterosato, 1878)
           Epitonium linctum (de Boury & Monterosato, 1890)
           Epitonium nanum (Jeffreys, 1884)
           Epitonium pseudonanum Bouchet & Warén, 1986
           Epitonium pulchellum (Bivona, 1832)
           Epitonium rhips (Watson, 1897)
           Epitonium semidisjunctum (Jeffreys, 1884)
           Epitonium striatissimum (di Monterosato, 1878) - frosted wentletrap
           Epitonium tiberii (de Boury, 1890)
           Epitonium trevelyanum (Johnston, 1841) - Trevely's wentletrap
           Epitonium tryoni (de Boury, 1913)
           Epitonium turtonis (Turton, 1819) - Turton's wentletrap
           Epitonium vittatum (Jeffreys, 1884)
           Epitonium webbii (d'Orbigny, 1840)