| Ref. | Description | Named Used | Page |
|---|---|---|---|
| 833 | Ruppert, E.E., R.S. Fox and R.D. Barnes 2004 Invertebrate Zoology. A functional evolutionary approach. 7th Ed. | Halecium incertus | |
| 7520 | Peña Cantero, A.L. and J.M. Gilli 2006 Benthic hydroids (Cnidari, Hydrozoa) from off Bouvet island (Antarctic Ocean). | Halecium incertus | 766 |