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 | Hydroida |
List of all species - see Taxon profile using the number
| Family Campanulariidae | ||||
| Phialidium simplex | (Browne, 1902) | |||
| Family Plumulariidae | ||||
| Schizotricha multifurcata | Allman | |||