| Species name | Common name | Distribution | Max. Length (cm) |
|---|---|---|---|
| Petasus atavus Haeckel, 1879 |
Mediterranean | 0.1 | |
| Petasus digonimus (Haeckel, 1879) |
Antarctic Indian Ocean | 0.1 | |
| Petasus eucope (Haeckel, 1879) |
Western Indian Ocean | ||
| Petasus tiaropsis (Haeckel, 1879) |
Northwest Pacific | 1 |