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 | Animalia | |
| Phylum | Nemata | |
| Class | Adenophorea | |
| Order | Araeolaimida | |
| Family | Plectidae | |
| Genus | Plectus |
List of Individual Species - see Taxon profile using the name of the taxa.
| Plectus antarcticus | De Man, 1904 | Unsegmented roundworm | |
| Plectus cf. antarcticus | |||
| Plectus cf. armatus | |||
| Plectus cf. belgicae | |||
| Plectus cf. frigophilus | |||
| Plectus cf. murrayi | |||
| Plectus cf. tolerans | |||
| Plectus frigophilus | Kiryanova, 1958 | Unsegmented roundworm | |
| Plectus globilabiatus | Andrassy, 1963 | ||
| Plectus insolens | sp. n. | ||
| Plectus meridianus | sp. n. | ||
| Plectus tolerans | sp. n. |