Arthropods from region Sri Lanka (South Asia) Arachnida Lamarck, 1801 Arachnids | 136 505 1017 | Families Genera Species | Taxom
| Branchiopoda Latreille, 1817 Branchiopods, Brine shrimps, Daphnia, Fairy shrimps and Water fleas, Phyllopods | 9 13 13 | Families Genera Species | Taxom
| Chilopoda Latreille, 1817 Centiped, Centipede, Centipedes, Centipeds, Chilopods | 7 14 29 | Families Genera Species | Taxom
| Diplopoda De Blainville in Gervais, 1844 Diplopods, Millepedes, Millipede, Millipedes | 25 63 133 | Families Genera Species | Taxom
| Entognatha Stummer-Traunfels, 1891 Entognathids | 5 9 13 | Families Genera Species | Taxom
| Insecta Linnaeus, 1758 Insects, True insects | 527 6198 14500 | Families Genera Species | Taxom
| Malacostraca Latreille, 1802 Higher Crustaceans, Malacostracans | 156 461 943 | Families Genera Species | Taxom
| Maxillopoda Dahl, 1956 Maxillopods | 38 74 109 | Families Genera Species | Taxom
| Ostracoda Latreille, 1802 Mussel shrimps, Ostracods, Seed Shrimps | 19 41 30 | Families Genera Species | Taxom
| Pauropoda Lubbock, 1868 Pauropodans, Pauropods, Progoneates | 2 10 36 | Families Genera Species | Taxom
| Pycnogonida Latreille, 1810 Pycnogonids, Sea Spider, Sea Spiders | 4 4 8 | Families Genera Species | Taxom
| Symphyla Ryder, 1880 Dwarf Centipedes, Pseudocentipedes, Symphylans, Symphylids | 1 2 0 | Families Genera Species | Taxom
| Trilobita ♰ Walch, 1771 Trilobites | 2 2 2 | Families Genera Species | Taxom
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