Cyrtosolen Herrmannsen, 1848 (original description)
Omalaxon Herrmannsen, 1847 (original description)
Oncidoris Herrmannsen, 1847 accepted as Onchidoris Blainville, 1816 (original description)
Oncis Herrmannsen, 1847 accepted as Peronia Fleming, 1822 (original description)
Oscabrion Herrmannsen, 1847 accepted as Chiton Linnaeus, 1758 (original description)
Oxysma Herrmannsen, 1847 accepted as Pinna Linnaeus, 1758 (original description)
Paclitus Herrmannsen, 1847 (original description)
Pycnodontes Herrmannsen, 1847 † accepted as Pycnodonte Fischer von Waldheim, 1835 (original description)
Streptura Herrmannsen, 1849 † accepted as Strepsidura Swainson, 1840 † (original description)
Zygolepas Herrmannsen, 1848 (original description)
Zygopatella Herrmannsen, 1848 (original description)