| Species name | Common name | Distribution | Max. Length (cm) |
|---|---|---|---|
| Rhopalonema funerarium Vanhoeffen, 1902 |
Eastern Indian Ocean, Western Atlantic and the Mediterranean | 1.7 | |
| Rhopalonema velatum Gegenbaur, 1856 |
Atlantic, Pacific, Arctic Oceans, Mediterranean and Sub-Antarctic | 1 |