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 | Pennales | |
| Family | Bacillariaceae | |
| Genus | Pseudonitzschia |
List of Individual Species - see Taxon profile using the name of the taxa.
| Pseudonitzschia antarctica | Manguin, 1960 | ||
| Pseudonitzschia heimii | Manguin, 1957 | ||
| Pseudonitzschia inflatula | (G. R. Hasle) G. R. Hasle | ||
| Pseudonitzschia lineola | (Cleve) Hasle, 1965 | ||
| Pseudonitzschia prolongatoides | (Hasle) Hasle, 1993 | ||
| Pseudonitzschia sp. | |||
| Pseudonitzschia subcurvata | (Hasle) Fryxnell, 1993 | ||
| Pseudonitzschia turgidula | (Hust.) Hasle, 1993 | ||
| Pseudonitzschia turgiduloides | (Hasle) Hasle, 1993 |