At any stage, you can move up or down the Taxonomic hierachy of Antarctic/subantarctic species by clicking on any name. Lower level taxon counts are shown in [].
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| Kingdom | Animalia | |
| Phylum | Cnidaria | |
| Class | Hydrozoa | |
| Order | Leptothecata | |
| Family | Haleciidae | |
| Genus | Halecium |
List of Individual Species - see Taxon profile using the name of the taxa.
| Halecium antarcticum | Vanhoffen, 1910 | ||
| Halecium banzare | sp. nov. | ||
| Halecium brevithecum | sp. nov. | ||
| Halecium delicatulum | Coughtrey, 1876 | ||
| Halecium elegantulum | sp. nov. | ||
| Halecium interpolatum | Ritchie, 1907 | ||
| Halecium macrocaulus | sp. nov. | ||
| Halecium ovatum | Totton, 1930 | ||
| Halecium tenellum | Hincks | ||
| Halecium tubatum | sp. nov. |