Arthropods from region Cavan Monaghan (Peterborough County, Ontario, Canada) Arachnida Lamarck, 1801 Arachnids | 7 8 8 | Families Genera Species | Taxom
| Branchiopoda Latreille, 1817 Branchiopods, Brine shrimps, Daphnia, Fairy shrimps and Water fleas, Phyllopods | 3 3 3 | Families Genera Species | Taxom
| Diplopoda De Blainville in Gervais, 1844 Diplopods, Millepedes, Millipede, Millipedes | 3 3 3 | Families Genera Species | Taxom
| Entognatha Stummer-Traunfels, 1891 Entognathids | 3 6 2 | Families Genera Species | Taxom
| Insecta Linnaeus, 1758 Insects, True insects | 127 397 444 | Families Genera Species | Taxom
| Malacostraca Latreille, 1802 Higher Crustaceans, Malacostracans | 6 8 9 | Families Genera Species | Taxom
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