Arthropods from region West Australia (Australia) Arachnida Lamarck, 1801 Arachnids | 243 1188 5299 | Families Genera Species | Taxom
| Branchiopoda Latreille, 1817 Branchiopods, Brine shrimps, Daphnia, Fairy shrimps and Water fleas, Phyllopods | 18 60 156 | Families Genera Species | Taxom
| Chilopoda Latreille, 1817 Centiped, Centipede, Centipedes, Centipeds, Chilopods | 9 33 54 | Families Genera Species | Taxom
| Diplopoda De Blainville in Gervais, 1844 Diplopods, Millepedes, Millipede, Millipedes | 18 43 159 | Families Genera Species | Taxom
| Entognatha Stummer-Traunfels, 1891 Entognathids | 17 50 69 | Families Genera Species | Taxom
| Insecta Linnaeus, 1758 Insects, True insects | 535 5529 14269 | Families Genera Species | Taxom
| Malacostraca Latreille, 1802 Higher Crustaceans, Malacostracans | 288 1145 2299 | Families Genera Species | Taxom
| Maxillopoda Dahl, 1956 Maxillopods | 95 217 378 | 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 | 55 208 226 | Families Genera Species | Taxom
| Pauropoda Lubbock, 1868 Pauropodans, Pauropods, Progoneates | 4 12 56 | Families Genera Species | Taxom
| Pycnogonida Latreille, 1810 Pycnogonids, Sea Spider, Sea Spiders | 9 22 53 | Families Genera Species | Taxom
| Remipedia Yager, 1981 Cave-dwelling crustaceans, Remipedes | 1 1 1 | Families Genera Species | Taxom
| Symphyla Ryder, 1880 Dwarf Centipedes, Pseudocentipedes, Symphylans, Symphylids | 2 5 8 | Families Genera Species | Taxom
| Thylacocephala ♰ Pinna & al., 1982 Bivalve arthropods | 1 2 1 | Families Genera Species | Taxom
| Trilobita ♰ Walch, 1771 Trilobites | 16 30 26 | Families Genera Species | Taxom
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