Arthropods from region Signy Island (South Orkney Islands) Arachnida Lamarck, 1801 Arachnids | 10 12 9 | Families Genera Species | Taxom
| Branchiopoda Latreille, 1817 Branchiopods, Brine shrimps, Daphnia, Fairy shrimps and Water fleas, Phyllopods | 1 2 2 | Families Genera Species | Taxom
| Malacostraca Latreille, 1802 Higher Crustaceans, Malacostracans | 29 59 73 | Families Genera Species | Taxom
| Maxillopoda Dahl, 1956 Maxillopods | 4 6 7 | Families Genera Species | Taxom
| Ostracoda Latreille, 1802 Mussel shrimps, Ostracods, Seed Shrimps | 2 3 3 | Families Genera Species | Taxom
| Pycnogonida Latreille, 1810 Pycnogonids, Sea Spider, Sea Spiders | 4 5 7 | Families Genera Species | Taxom
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