| Hydractinia arge (Clarke, 1882) | Accepted name (WoRMs) |
| Status | senior synonym, new combination |
| ICZN valid name | Yes |
| Status ref. | Cairns, S.D., D.R. Calder, A. Brinckmann-Voss, C.B. Castro, D.G. Fautin, P.R. Pugh, C.E. Mills, W.C. Jaap, M.N. Arai, S.H.D. Haddock and D.M. Opresko, 2003 |
| Comment | Auther and year from Ref. 1663, p. 11. |