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 [].
Back to List of kingdoms
| Kingdom | Animalia | |
| Phylum | Echinodermata | |
| Class | Echinoidea | |
| Order | Cassiduloida | |
| Family | Euchinoidea | |
| Genus | Pourtalesia |
List of Individual Species - see Taxon profile using the name of the taxa.
| Pourtalesia carinata | A.Agassiz | ||
| Pourtalesia ceratopyga | A.Agassiz |