Arthropods from region Indian Ocean (World Oceans) Arachnida Lamarck, 1801 Arachnids | 49 69 90 | Families Genera Species | Taxom
| Branchiopoda Latreille, 1817 Branchiopods, Brine shrimps, Daphnia, Fairy shrimps and Water fleas, Phyllopods | 3 6 6 | Families Genera Species | Taxom
| Chilopoda Latreille, 1817 Centiped, Centipede, Centipedes, Centipeds, Chilopods | 3 3 6 | Families Genera Species | Taxom
| Diplopoda De Blainville in Gervais, 1844 Diplopods, Millepedes, Millipede, Millipedes | 4 8 8 | Families Genera Species | Taxom
| Entognatha Stummer-Traunfels, 1891 Entognathids | 12 25 31 | Families Genera Species | Taxom
| Insecta Linnaeus, 1758 Insects, True insects | 98 274 346 | Families Genera Species | Taxom
| Malacostraca Latreille, 1802 Higher Crustaceans, Malacostracans | 264 991 2154 | Families Genera Species | Taxom
| Maxillopoda Dahl, 1956 Maxillopods | 91 226 501 | Families Genera Species | Taxom
| Merostomata Woodward, 1866 Horseshoe crabs, Merostomates | 1 2 2 | Families Genera Species | Taxom
| Ostracoda Latreille, 1802 Mussel shrimps, Ostracods, Seed Shrimps | 31 102 100 | Families Genera Species | Taxom
| Pycnogonida Latreille, 1810 Pycnogonids, Sea Spider, Sea Spiders | 11 28 100 | Families Genera Species | Taxom
| Remipedia Yager, 1981 Cave-dwelling crustaceans, Remipedes | 2 2 2 | Families Genera Species | Taxom
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