Arthropods from region Costa Rica (Central America) Arachnida Lamarck, 1801 Arachnids | 204 776 1878 | Families Genera Species | Taxom
| Branchiopoda Latreille, 1817 Branchiopods, Brine shrimps, Daphnia, Fairy shrimps and Water fleas, Phyllopods | 6 7 8 | Families Genera Species | Taxom
| Chilopoda Latreille, 1817 Centiped, Centipede, Centipedes, Centipeds, Chilopods | 8 20 28 | Families Genera Species | Taxom
| Diplopoda De Blainville in Gervais, 1844 Diplopods, Millepedes, Millipede, Millipedes | 29 64 130 | Families Genera Species | Taxom
| Entognatha Stummer-Traunfels, 1891 Entognathids | 13 19 14 | Families Genera Species | Taxom
| Insecta Linnaeus, 1758 Insects, True insects | 611 11863 34633 | Families Genera Species | Taxom
| Malacostraca Latreille, 1802 Higher Crustaceans, Malacostracans | 193 509 918 | Families Genera Species | Taxom
| Maxillopoda Dahl, 1956 Maxillopods | 46 77 134 | Families Genera Species | Taxom
| Ostracoda Latreille, 1802 Mussel shrimps, Ostracods, Seed Shrimps | 15 24 25 | Families Genera Species | Taxom
| Pycnogonida Latreille, 1810 Pycnogonids, Sea Spider, Sea Spiders | 6 8 16 | Families Genera Species | Taxom
| Trilobita ♰ Walch, 1771 Trilobites | 5 6 6 | Families Genera Species | Taxom
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