| Species name | Common name | Distribution | Max. Length (cm) |
|---|---|---|---|
| Onisimus affinis Hansen, 1887 |
Arctic and Northern Atlantic | ||
| Onisimus barentsi (Stebbing, 1894) |
Arctic | ||
| Onisimus brevicaudatus Hansen, 1887 |
Arctic and Northeast Atlantic | ||
| Onisimus caricus Hansen, 1887 |
Arctic and Northeast Atlantic | ||
| Onisimus edwardsi (Krøyer, 1846) |
Arctic and Northern Atlantic | ||
| Onisimus glacialis (Sars, 1900) |
Arctic and Northern Atlantic | ||
| Onisimus litoralis (Krøyer, 1845) |
Arctic and Northern Atlantic | ||
| Onisimus nanseni Sars, 1900 |
Arctic | ||
| Onisimus plautus (Krøyer, 1845) |
Arctic, Northern Pacific and Northeast Atlantic |