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 | Cryocystis |
List of Individual Species - see Taxon profile using the name of the taxa.
| Cryocystis brevispina | (Fritsch) Kol 1968 | ||
| Cryocystis brevispina f. groenlandica | Kol 1959 | ||
| Cryocystis granulosa | Kol 1959 |