| Citation | Calder, D.R., 1972 Some athecate hydroids from the shelf water of northern Canada. Journal of the Fisheries Research Board Canada 29(3):217-228. |
| Ref. | 120415 Calder, D.R., 1972 |
| Page | 225 |
| Named Used as Valid | Rhizorhagium roseum |
| Locality | |
| Distribution | Northern Atlantic Ocean and Arctic Ocean. |