Arthropods from region Trinidad and Tobago (Caribbean islands) Arachnida Lamarck, 1801 Arachnids | 134 399 561 | Families Genera Species | Taxom
| Branchiopoda Latreille, 1817 Branchiopods, Brine shrimps, Daphnia, Fairy shrimps and Water fleas, Phyllopods | 1 1 1 | Families Genera Species | Taxom
| Chilopoda Latreille, 1817 Centiped, Centipede, Centipedes, Centipeds, Chilopods | 10 17 28 | Families Genera Species | Taxom
| Diplopoda De Blainville in Gervais, 1844 Diplopods, Millepedes, Millipede, Millipedes | 19 31 48 | Families Genera Species | Taxom
| Entognatha Stummer-Traunfels, 1891 Entognathids | 2 2 1 | Families Genera Species | Taxom
| Insecta Linnaeus, 1758 Insects, True insects | 401 3514 6584 | Families Genera Species | Taxom
| Malacostraca Latreille, 1802 Higher Crustaceans, Malacostracans | 138 333 612 | Families Genera Species | Taxom
| Maxillopoda Dahl, 1956 Maxillopods | 41 68 106 | Families Genera Species | Taxom
| Ostracoda Latreille, 1802 Mussel shrimps, Ostracods, Seed Shrimps | 23 63 110 | Families Genera Species | Taxom
| Pycnogonida Latreille, 1810 Pycnogonids, Sea Spider, Sea Spiders | 5 6 7 | Families Genera Species | Taxom
| Trilobita ♰ Walch, 1771 Trilobites | 2 2 2 | Families Genera Species | Taxom
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