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 | Diatomophyceae/Bacillariophyceae | |
| Order | Unknown | |
| Family | Unknown | |
| Genus | Diadesmis |
List of Individual Species - see Taxon profile using the name of the taxa.
| Diadesmis contenta | (Grun.) Mann | ||
| Diadesmis contenta var. parallela | (Petersen) Spaulding 1997 | ||
| Diadesmis gallica | W. Smith 1857 | ||
| Diadesmis gallica var. perpusilla | (Grunow) Lange-Bertalot in Lange-Bertalot et Metze | ||
| Diadesmis laevissima | (Cleve) D.G. Mann in Round et al. 1990/? | ||
| Diadesmis perpusilla | (Grunow) D.G. Mann in Round et al., 1990 | Synonym | |
| Diadesmis sp. |