Arthropods from region Johnson (Whitman County, Washington, USA) Arachnida Lamarck, 1801 Arachnids | 11 13 14 | Families Genera Species | Taxom
| Diplopoda De Blainville in Gervais, 1844 Diplopods, Millepedes, Millipede, Millipedes | 1 1 1 | Families Genera Species | Taxom
| Entognatha Stummer-Traunfels, 1891 Entognathids | 3 4 2 | Families Genera Species | Taxom
| Insecta Linnaeus, 1758 Insects, True insects | 58 116 136 | Families Genera Species | Taxom
| Malacostraca Latreille, 1802 Higher Crustaceans, Malacostracans | 4 4 3 | Families Genera Species | Taxom
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