Arthropods from region Orange County (California, USA) Arachnida Lamarck, 1801 Arachnids | 41 76 80 | Families Genera Species | Taxom
| Branchiopoda Latreille, 1817 Branchiopods, Brine shrimps, Daphnia, Fairy shrimps and Water fleas, Phyllopods | 4 4 4 | Families Genera Species | Taxom
| Chilopoda Latreille, 1817 Centiped, Centipede, Centipedes, Centipeds, Chilopods | 3 3 3 | Families Genera Species | Taxom
| Diplopoda De Blainville in Gervais, 1844 Diplopods, Millepedes, Millipede, Millipedes | 5 5 5 | Families Genera Species | Taxom
| Entognatha Stummer-Traunfels, 1891 Entognathids | 8 11 7 | Families Genera Species | Taxom
| Insecta Linnaeus, 1758 Insects, True insects | 247 1114 1428 | Families Genera Species | Taxom
| Malacostraca Latreille, 1802 Higher Crustaceans, Malacostracans | 71 102 117 | Families Genera Species | Taxom
| Maxillopoda Dahl, 1956 Maxillopods | 14 20 19 | Families Genera Species | Taxom
| Ostracoda Latreille, 1802 Mussel shrimps, Ostracods, Seed Shrimps | 7 7 6 | Families Genera Species | Taxom
| Pycnogonida Latreille, 1810 Pycnogonids, Sea Spider, Sea Spiders | 5 8 15 | Families Genera Species | Taxom
| Trilobita ♰ Walch, 1771 Trilobites | 1 1 1 | Families Genera Species | Taxom
|
|