Helix janthina Linnaeus, 1758 | Janthina affinis Reeve, 1858 | Janthina africana Reeve, 1858 | Janthina alba Anton, 1838 | Janthina balteata Reeve, 1858 | Janthina bicolor Menke, 1828 | Janthina bicolor var. major Monterosato, 1878 | Janthina bicolor var. minor Monterosato, 1878 | Janthina britannica Forbes & Hanley, 1853 | Janthina carpenteri Mørch, 1860 | Janthina carpenteri var. contorta Tryon, 1887 | Janthina casta Reeve, 1858 | Janthina coeruleata Reeve, 1858 | Janthina communis Lamarck, 1799 | Janthina costae Mørch, 1860 | Janthina depressa Reeve, 1858 | Janthina fibula Reeve, 1858 | Janthina fragilis Lamarck, 1799 | Janthina fragilis var. spiraelata Mørch, 1860 | Janthina grandis Reeve, 1858 | Janthina involuta Reeve, 1858 | Janthina orbignyi Mørch, 1860 | Janthina penicephela Peron, 1824 | Janthina planispirata A. Adams & Reeve, 1848 | Janthina roseala Reeve, 1858 | Janthina rotundata Dillwyn, 1840 | Janthina smithiae Reeve, 1858 | Janthina striulata Carpenter, 1857 | Janthina striulata var. contorta Carpenter, 1857 | Janthina trochoidea Reeve, 1858 | Janthina violacea Röding, 1798 | Janthina vulgaris Gray, 1847