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 | Protozoa | |
| Phylum | Ciliophora | |
| Class | Spirotrichea | |
| Order | Tintinnida | |
| Family | Rhabdonellidae | |
| Genus | Protorhabdonella |
List of Individual Species - see Taxon profile using the name of the taxa.
| Protorhabdonella curta | (Cleve) J¿rgensen, 1924 | ||
| Protorhabdonella simplex | (Cleve) J¿rgensen, 1924 |