• Omphalius R. A. Philippi, 1847 accepted as Tegula R. P. Lesson, 1833
• Omphalius (Anadema) H. Adams & A. Adams, 1854 accepted as Anadema H. Adams & A. Adams, 1854
• Omphalius (Anadema) caelatus A. Adams, 1854 accepted as Anadema macandrewii (Mörch, 1868)
• Omphalius caelatus A. Adams, 1854 accepted as Anadema macandrewii (Mörch, 1868)
• Omphalius collingei Melvill, 1904 accepted as Clanculus collingei Melvill, 1904
• Omphalius comptus G. B. Sowerby III, 1903 (uncertain > taxon inquirendum)
• Omphalius eusculptus G. B. Sowerby III, 1905 (uncertain > taxon inquirendum)
• Omphalius globulus P. P. Carpenter, 1857 accepted as Agathistoma globulum (P. P. Carpenter, 1857)
• Omphalius marianus Dall, 1919 accepted as Agathistoma marianum (Dall, 1919)
• Omphalius nigerrimus (Gmelin, 1791) accepted as Tegula nigerrima (Gmelin, 1791)
• Omphalius pfeifferi (R. A. Philippi, 1846) accepted as Tegula pfeifferi (R. A. Philippi, 1846)
• Omphalius pfeifferi carpenteri (Dunker, 1882) accepted as Tegula pfeifferi carpenteri (Dunker, 1860)
• Omphalius pfeifferi pfeifferi (R. A. Philippi, 1846) accepted as Tegula pfeifferi pfeifferi (R. A. Philippi, 1846)
• Omphalius rufotinctus P. P. Carpenter, 1857 accepted as Tegula rugosa (A. Adams, 1853)
• Omphalius rusticus (Gmelin, 1791) accepted as Tegula rustica (Gmelin, 1791)
• Omphalius smithii Tapparone Canefri, 1874 accepted as Agathistoma panamense (R. A. Philippi, 1849)
• Omphalius sticticus A. Adams, 1855 accepted as Eurytrochus sticticus (A. Adams, 1855)
• Omphalius viridulus (Gmelin, 1791) accepted as Agathistoma viridulum (Gmelin, 1791)
• Tegula (Omphalius) R. A. Philippi, 1847 accepted as Tegula R. P. Lesson, 1833
• Tegula (Omphalius) exoleta (Conrad, 1843) † (uncertain > unassessed)
• Trochus (Omphalius) R. A. Philippi, 1847 accepted as Tegula R. P. Lesson, 1833
• Trochus (Omphalius) cooksoni E. A. Smith, 1877 accepted as Agathistoma cooksoni (E. A. Smith, 1877)