Onchidium is a genus of air-breathing sea slugs, shell-less marine pulmonate gastropod mollusks in the family Onchidiidae. There are only four species currently recognized in the genus.[2][3]
The following species with valid names are included within the genus Onchidium :
Onchidium multinotatum, originally described within the genus in 1883, is regarded as a nomen dubium.[4]
Onchidium is a genus of air-breathing sea slugs, shell-less marine pulmonate gastropod mollusks in the family Onchidiidae. There are only four species currently recognized in the genus.