- Onchidella celtica (Audouin & Milne-Edwards, 1832)
- Onchidella remanei Ev. Marcus, 1956 accepted as Onchidella celtica (Audouin & Milne-Edwards, 1832)
- Onchidium celticum Audouin & Milne-Edwards, 1832 accepted as Onchidella celtica (Audouin & Milne-Edwards, 1832)
- Onchidium nanum R. A. Philippi, 1844 accepted as Onchidella celtica (Audouin & Milne-Edwards, 1832)
- Onchidium tuberculatum Taslé, 1870 accepted as Onchidella celtica (Audouin & Milne-Edwards, 1832)
- Peronia parthenopeia Delle Chiaje, 1841 accepted as Onchidella celtica (Audouin & Milne-Edwards, 1832)