| Species name | Common name | Distribution | Max. Length (cm) |
|---|---|---|---|
| Holascus fibulatus Schulze, 1886 |
Antarctic Indian Ocean | ||
| Holascus pannosus Reiswig & Kelly, 2018 |
Southwest Pacific | ||
| Holascus polejaevi Schulze, 1886 |
Antarctic Indian Ocean | ||
| Holascus ridleyi Schulze, 1886 |
Western Central Pacific | ||
| Holascus tasmanensis Reiswig & Kelly, 2018 |
Southwest Pacific |