Arthropods from region Northwest Mexico (North Mexico, Mexico) Arachnida Lamarck, 1801 Arachnids | 144 395 695 | Families Genera Species | Taxom
| Branchiopoda Latreille, 1817 Branchiopods, Brine shrimps, Daphnia, Fairy shrimps and Water fleas, Phyllopods | 15 26 53 | Families Genera Species | Taxom
| Chilopoda Latreille, 1817 Centiped, Centipede, Centipedes, Centipeds, Chilopods | 6 17 28 | Families Genera Species | Taxom
| Diplopoda De Blainville in Gervais, 1844 Diplopods, Millepedes, Millipede, Millipedes | 18 34 39 | Families Genera Species | Taxom
| Entognatha Stummer-Traunfels, 1891 Entognathids | 9 40 58 | Families Genera Species | Taxom
| Insecta Linnaeus, 1758 Insects, True insects | 479 5421 11764 | Families Genera Species | Taxom
| Malacostraca Latreille, 1802 Higher Crustaceans, Malacostracans | 210 664 1278 | Families Genera Species | Taxom
| Maxillopoda Dahl, 1956 Maxillopods | 89 180 393 | Families Genera Species | Taxom
| Ostracoda Latreille, 1802 Mussel shrimps, Ostracods, Seed Shrimps | 30 64 77 | Families Genera Species | Taxom
| Pycnogonida Latreille, 1810 Pycnogonids, Sea Spider, Sea Spiders | 7 14 20 | Families Genera Species | Taxom
| Trilobita ♰ Walch, 1771 Trilobites | 23 39 19 | Families Genera Species | Taxom
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