| Species name | Common name | Distribution | Max. Length (cm) |
|---|---|---|---|
| Haploscoloplos elongatus (Johnson, 1901) |
Pacific Ocean | ||
| Haploscoloplos foliosus Hartman |
Eastern Pacific | ||
| Haploscoloplos fragilis (Verrill, 1873) |
Western Central Pacific | ||
| Haploscoloplos kerguelensis (McIntosh, 1885) |
Antarctic and Pacific Ocean | ||
| Haploscoloplos panamensis Monro, 1933 |
Eastern Pacific |