Arthropods from region Saint Helena (Saint Helena, Ascension and Tristan da Cunha) Arachnida Lamarck, 1801 Arachnids | 76 160 228 | Families Genera Species | Taxom
| Chilopoda Latreille, 1817 Centiped, Centipede, Centipedes, Centipeds, Chilopods | 6 9 18 | Families Genera Species | Taxom
| Diplopoda De Blainville in Gervais, 1844 Diplopods, Millepedes, Millipede, Millipedes | 3 4 4 | Families Genera Species | Taxom
| Entognatha Stummer-Traunfels, 1891 Entognathids | 3 3 2 | Families Genera Species | Taxom
| Insecta Linnaeus, 1758 Insects, True insects | 205 929 1524 | Families Genera Species | Taxom
| Malacostraca Latreille, 1802 Higher Crustaceans, Malacostracans | 124 252 371 | Families Genera Species | Taxom
| Maxillopoda Dahl, 1956 Maxillopods | 25 41 44 | Families Genera Species | Taxom
| Ostracoda Latreille, 1802 Mussel shrimps, Ostracods, Seed Shrimps | 13 19 12 | Families Genera Species | Taxom
| Pycnogonida Latreille, 1810 Pycnogonids, Sea Spider, Sea Spiders | 6 8 14 | Families Genera Species | Taxom
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