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 | Ochrophyta | |
| Class | Craspedophyceae | |
| Order | Choanoflagellida | |
| Family | Acanthoecidae | |
| Genus | Calliacantha |
List of Individual Species - see Taxon profile using the name of the taxa.
| Calliacantha natans | (Gr¿ntved) Leadb., 1978 | ||
| Calliacantha simplex | Manton & Oates, 1979 |