Arthropods from region Northeast Pacific (North Pacific Ocean) Arachnida Lamarck, 1801 Arachnids | 2 4 4 | Families Genera Species | Taxom
| Insecta Linnaeus, 1758 Insects, True insects | 5 6 10 | Families Genera Species | Taxom
| Malacostraca Latreille, 1802 Higher Crustaceans, Malacostracans | 126 401 1194 | Families Genera Species | Taxom
| Maxillopoda Dahl, 1956 Maxillopods | 15 27 53 | Families Genera Species | Taxom
| Ostracoda Latreille, 1802 Mussel shrimps, Ostracods, Seed Shrimps | 5 10 3 | Families Genera Species | Taxom
| Pycnogonida Latreille, 1810 Pycnogonids, Sea Spider, Sea Spiders | 4 5 5 | Families Genera Species | Taxom
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