Onchidium
| Onchidium | |
|---|---|
| Live animals of Onchidium melakense | |
| Scientific classification | |
| Domain: | Eukaryota | 
| Kingdom: | Animalia | 
| Phylum: | Mollusca | 
| Class: | Gastropoda | 
| Order: | Systellommatophora | 
| Family: | Onchidiidae | 
| Genus: | Onchidium Buchannan, 1800 | 
| Type species | |
| Onchidium typhae  Buchannan, 1800 | |
| Synonyms | |
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Onchidium is a genus of air-breathing sea slugs, shell-less marine pulmonate gastropod mollusks in the family Onchidiidae.