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 | Bacteria | |
| Phylum | Proteobacteria | |
| Class | Gammaproteobacteria | |
| Order | Alteromonadales | |
| Family | Pseudoalteromonadaceae | |
| Genus | Pseudoalteromonas |
List of Individual Species - see Taxon profile using the name of the taxa.
| Pseudoalteromonas atlantica | (Akagawa-Matsushita et al. 1992) Gauthier et al. 1995 | Synonym | |
| Pseudoalteromonas carrageenavora | (Akagawa-Matsushita et al. 1992) Gauthier et al. 1995 | Synonym | |
| Pseudoalteromonas espejiana | (Chan et al. 1978) Gauthier et al. 1995 | Synonym | |
| Pseudoalteromonas haloplanktis | Synonym | ||
| Pseudoalteromonas nigrefaciens | (Baumann et al. 1984) Gauthier et al. 1995 | Synonym | |
| Pseudoalteromonas prydzensis | Bowman 1998 | Synonym | |
| Pseudoalteromonas undina | (Chan et al. 1978) Gauthier et al. 1995 | Synonym |