Arthropods from region San Diego County (California, USA) Arachnida Lamarck, 1801 Arachnids | 74 160 224 | Families Genera Species | Taxom
| Branchiopoda Latreille, 1817 Branchiopods, Brine shrimps, Daphnia, Fairy shrimps and Water fleas, Phyllopods | 4 5 6 | Families Genera Species | Taxom
| Chilopoda Latreille, 1817 Centiped, Centipede, Centipedes, Centipeds, Chilopods | 7 7 7 | Families Genera Species | Taxom
| Diplopoda De Blainville in Gervais, 1844 Diplopods, Millepedes, Millipede, Millipedes | 9 14 13 | Families Genera Species | Taxom
| Entognatha Stummer-Traunfels, 1891 Entognathids | 6 10 7 | Families Genera Species | Taxom
| Insecta Linnaeus, 1758 Insects, True insects | 369 2560 4467 | Families Genera Species | Taxom
| Malacostraca Latreille, 1802 Higher Crustaceans, Malacostracans | 120 204 280 | Families Genera Species | Taxom
| Maxillopoda Dahl, 1956 Maxillopods | 47 73 86 | Families Genera Species | Taxom
| Ostracoda Latreille, 1802 Mussel shrimps, Ostracods, Seed Shrimps | 9 13 10 | Families Genera Species | Taxom
| Pycnogonida Latreille, 1810 Pycnogonids, Sea Spider, Sea Spiders | 5 8 11 | Families Genera Species | Taxom
| Trilobita ♰ Walch, 1771 Trilobites | 1 1 1 | Families Genera Species | Taxom
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