| Reference no. | Description | year | Name used | Page |
|---|---|---|---|---|
| 123163 | Ronowicz, M. and P. Schuchert 2007 Halecium arcticum (Cnidaria: Hydrozoa), a new species of hydroid from Spitsbergen. Zootaxa 1549(1):55-62. | 2007 | Halecium arcticum | --> |
| 3477 | MarineSpecies.org 2050 MarineSpecies.org. http://www.marinespecies.org/index.php | 2050 | Halecium arcticum | --> |