| Reference no. | Description | year | Name used | Page |
|---|---|---|---|---|
| 118831 | Watson, J.E. 2018 Some hydroids (Cnidaria, Hydrozoa) from the Great Australian Bight in the collection of the South Australian Museum. Zootaxa 4410(1):1-34. | 2018 | Halecium obovatum | --> |
| 3477 | MarineSpecies.org 2050 MarineSpecies.org. http://www.marinespecies.org/index.php | 2050 | Halecium obovatum | --> |