| Species name | Common name | Distribution | Max. Length (cm) |
|---|---|---|---|
| Hemiarthrus abdominalis (Krøyer, 1840) |
Arctic and Northeast Atlantic | ||
| Hemiarthrus alphei An, Chen & Paulay, 2020 |
Eastern Central Pacific | ||
| Hemiarthrus surculus Boyko & Williams, 2004 |
Western Central Atlantic |