• Janthina Röding, 1798
• Janthina (Achates) Gistel, 1848 accepted as Janthina Röding, 1798
• Janthina (Achates) carpenteri Mörch, 1860 accepted as Janthina janthina (Linnaeus, 1758)
• Janthina (Achates) orbignyi Mörch, 1860 accepted as Janthina janthina (Linnaeus, 1758)
• Janthina (Iodes) Mörch, 1860 accepted as Janthina Röding, 1798
• Janthina (Iodina) Mörch, 1860 accepted as Janthina Röding, 1798
• Janthina alba Anton, 1838 accepted as Theba pisana (O. F. Müller, 1774)
• Janthina auriculata E. von Martens, 1904 accepted as Janthina janthina (Linnaeus, 1758)
• Janthina bicolor Menke, 1828 accepted as Janthina janthina (Linnaeus, 1758)
• Janthina bicolor O. G. Costa, 1830 accepted as Janthina janthina (Linnaeus, 1758)
• Janthina bicolor var. conica Monterosato, 1878 accepted as Janthina janthina (Linnaeus, 1758)
• Janthina bicolor var. major Monterosato, 1878 accepted as Janthina janthina (Linnaeus, 1758)
• Janthina capreolata Montrouzier, 1859 accepted as Janthina exigua Lamarck, 1816
• Janthina chavani (Ludbrook, 1978) †
• Janthina cimbrica Sorgenfrei, 1958 † (uncertain > taxon inquirendum)
• Janthina communis Lamarck, 1822 accepted as Janthina janthina (Linnaeus, 1758)
• Janthina costae Mörch, 1860 accepted as Janthina janthina (Linnaeus, 1758)
• Janthina courcellei Mabille & Rochebrune, 1889 accepted as Janthina exigua Lamarck, 1816
• Janthina decollata P. P. Carpenter, 1857 accepted as Janthina globosa Swainson, 1822
• Janthina elongata [sic] accepted as Janthina globosa Swainson, 1822
• Janthina exigua Lamarck, 1816
• Janthina fragilis Lamarck, 1801 accepted as Janthina janthina (Linnaeus, 1758)
• Janthina globosa Blainville, 1822 accepted as Janthina umbilicata A. d'Orbigny, 1841
• Janthina globosa Swainson, 1822
• Janthina hartungi Mayer, 1864 † accepted as Janthina typica (Bronn, 1861) †
• Janthina incisa R. A. Philippi, 1849 accepted as Janthina exigua Lamarck, 1816
• Janthina iricolor Reeve, 1858 accepted as Janthina globosa Swainson, 1822
• Janthina janthina (Linnaeus, 1758)
• Janthina jehennei (Petit de la Saussaye, 1853) accepted as Recluzia jehennei Petit de la Saussaye, 1853 accepted as Recluzia lutea (Bennett, 1840)
• Janthina krejcii Beu, 2017 †
• Janthina laeta (Monterosato, 1884) accepted as Janthina globosa Swainson, 1822
• Janthina lutea Bennett, 1840 accepted as Recluzia lutea (Bennett, 1840)
• Janthina nana J. E. Gray, 1850 accepted as Janthina exigua Lamarck, 1816
• Janthina nitens Menke, 1828 accepted as Janthina globosa Swainson, 1822
• Janthina nitens var. atlantica Mörch, 1860 accepted as Janthina globosa Swainson, 1822
• Janthina nitens var. minor Monterosato, 1878 accepted as Janthina globosa Swainson, 1822
• Janthina nitida A. Adams, 1861 accepted as Janthina umbilicata A. d'Orbigny, 1841
• Janthina pallida W. Thompson, 1840
• Janthina pallida var. minor Monterosato, 1878 accepted as Janthina globosa Swainson, 1822
• Janthina patula R. A. Philippi, 1844 accepted as Janthina globosa Swainson, 1822
• Janthina payraudeaui Locard, 1901 accepted as Janthina globosa Swainson, 1822
• Janthina penicephala F. Péron & Lesueur, 1807 accepted as Janthina janthina (Linnaeus, 1758)
• Janthina prolongata Blainville, 1822 accepted as Janthina globosa Swainson, 1822
• Janthina rosea Anton, 1838 accepted as Janthina globosa Swainson, 1822
• Janthina rotundata Dillwyn, 1840 accepted as Janthina janthina (Linnaeus, 1758)
• Janthina splendens Monterosato, 1884 accepted as Janthina globosa Swainson, 1822
• Janthina striata Montrouzier, 1860 accepted as Janthina exigua Lamarck, 1816
• Janthina turrita von dem Busch, 1849 accepted as Recluzia lutea (Bennett, 1840)
• Janthina typica (Bronn, 1861) †
• Janthina umbilicata A. d'Orbigny, 1841
• Janthina vinsoni Deshayes, 1863 accepted as Janthina exigua Lamarck, 1816
• Janthina violacea Röding, 1798 accepted as Janthina janthina (Linnaeus, 1758)
• Janthina vulgaris Gray, 1847 accepted as Janthina janthina (Linnaeus, 1758)