Onchidium
Onchidium is a genus of air-breathing sea slugs, shell-less marine pulmonate gastropod mollusks in the family Onchidiidae.
Species
Some authors recognize only four species in the genus. The World Register of Marine Species lists six species as accepted.- Onchidium melakense Dayrat & Goulding, 2019
- Onchidium multiradiatum C. Semper, 1882
- Onchidium nebulosum C. Semper, 1880
- Onchidium reevesii
- Onchidium stuxbergi
- Onchidium typhae Buchannan, 1800