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 | Plantae | |
| Phylum | Chlorophyta | |
| Class | Chlorophyceae | |
| Order | Chlorellales | |
| Family | Oocystaceae | |
| Genus | Oocystis |
List of Individual Species - see Taxon profile using the name of the taxa.
| Oocystis minuta | Guillard, Bold et Mac Entee 1975 | ||
| Oocystis minuta var. ellipsoidea | Broady 1982 | ||
| Oocystis submarina | Lagerheim 1886 |