| Scientific Name | TSN | Taxon Author | Common Name | Name Source | Usage | Reason (ITIS) | Taxon Rank |
|---|
| Halosydna brevisetosa | 64489 | Kinberg, 1855 | | ITIS | valid | | Species |
| Halosydna johnsoni | 64490 | (Darboux, 1899) | | ITIS | valid | | Species |
| Halosydna latior | 64492 | Chamberlin, 1919 | | ITIS | valid | | Species |
| Halosydna leucohyba | 64497 | (Schmarda, 1861) | | ITIS | valid | | Species |
| Halosydna parva | 64499 | Kinberg, 1855 | | ITIS | valid | | Species |
| Halosydna patagonica | 64494 | Kinberg, 1855 | | ITIS | valid | | Species |
| Halosydna pissisi | 64495 | (Quatrefages, 1865) | | ITIS | valid | | Species |
| Halosydna samoensis | 64500 | (Grube, 1876) | | ITIS | valid | | Species |
| Halosydna tuberculifer | 64493 | Chamberlin, 1919 | | ITIS | valid | | Species |
| Lepidonotus johnsoni | 64491 | Darboux, 1899 | | ITIS | invalid | junior synonym of Halosydna johnsoni | Species |
| Polynoe leucohyba | 64498 | Schmarda, 1861 | | ITIS | invalid | junior synonym of Halosydna leucohyba | Species |
| Polynoe pissisi | 64496 | Quatrefages, 1865 | | ITIS | invalid | junior synonym of Halosydna pissisi | Species |
| Polynoe samoensis | 64501 | Grube, 1876 | | ITIS | invalid | junior synonym of Halosydna samoensis | Species |
