Arthropods from region Southwest Mexico (South Mexico, Mexico) Arachnida Lamarck, 1801 Arachnids | 180 549 921 | Families Genera Species | Taxom
| Branchiopoda Latreille, 1817 Branchiopods, Brine shrimps, Daphnia, Fairy shrimps and Water fleas, Phyllopods | 12 19 23 | Families Genera Species | Taxom
| Chilopoda Latreille, 1817 Centiped, Centipede, Centipedes, Centipeds, Chilopods | 6 18 26 | Families Genera Species | Taxom
| Diplopoda De Blainville in Gervais, 1844 Diplopods, Millepedes, Millipede, Millipedes | 28 54 91 | Families Genera Species | Taxom
| Entognatha Stummer-Traunfels, 1891 Entognathids | 19 73 110 | Families Genera Species | Taxom
| Insecta Linnaeus, 1758 Insects, True insects | 500 5821 13599 | Families Genera Species | Taxom
| Malacostraca Latreille, 1802 Higher Crustaceans, Malacostracans | 130 339 581 | Families Genera Species | Taxom
| Maxillopoda Dahl, 1956 Maxillopods | 27 46 64 | Families Genera Species | Taxom
| Ostracoda Latreille, 1802 Mussel shrimps, Ostracods, Seed Shrimps | 8 12 10 | Families Genera Species | Taxom
| Pauropoda Lubbock, 1868 Pauropodans, Pauropods, Progoneates | 1 1 1 | Families Genera Species | Taxom
| Pycnogonida Latreille, 1810 Pycnogonids, Sea Spider, Sea Spiders | 4 5 8 | Families Genera Species | Taxom
| Trilobita ♰ Walch, 1771 Trilobites | 15 25 34 | Families Genera Species | Taxom
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