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 [].
Back to List of kingdoms
| Kingdom | Animalia | |
| Phylum | Cnidaria | |
| Class | Hydrozoa | |
| Order | Trachymedusae |
List of Families (full drilldown to species)
| Halicreatidae | [5] | |
| Petasidae | [1] | |
| Ptychogastriidae | [2] | |
| Rhopalonematidae | [10] |