• Muricites Schlotheim, 1820 † accepted as Murex Linnaeus, 1758
• Myorictes Metschnikoff, 1866 accepted as Myoryctes Eberth, 1863
• Myriactis Haddon, 1888 [Family: Stichodactylidae]
• Myriactis Kützing, 1843 accepted as Myriactula O. Kuntze, 1898 [Family: Chordariaceae]
• Myriactis Lessing, 1831 [Family: Asteraceae]
• Myrichtys accepted as Myrichthys Girard, 1859
• Myrmicites Förster, 1891 † (uncertain)