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 | Chromista | |
| Phylum | Heterokontophyta | |
| Class | Phaeophyceae | |
| Order | Scytosiphonales |
List of all species - see Taxon profile using the number
| Family Scytosiphonaceae | ||||
| Petalonia fascia | (OF Muller) Kuntze 1891-1898 | |||
| Scytosiphon lomentaria | (Lyngbye) Link 1833 | |||