| Classe | Ordre | Famille |
| ARACHNIDA | Araneae Clerck, 1758 | Agelenidae Koch, 1837 |
| | | Amaurobiidae Thorell, 1870 |
| | | Anapidae Simon, 1895 |
| | | Anyphaenidae Bertkau, 1878 |
| | | Araneidae Clerck, 1758 |
| | | Araneomorphae |
| | | Arkyidae L. Koch, 1872 |
| | | Atypidae Thorell, 1870 |
| | | Cheiracanthiidae Wagner, 1887 |
| | | Cicurinidae F.O. Pickard-Cambridge, 1893 |
| | | Clubionidae Wagner, 1887 |
| | | Corinnidae Karsch, 1880 |
| | | Ctenidae Keyserling, 1877 |
| | | Ctenizidae Thorell, 1887 |
| | | Cybaeidae Banks, 1892 |
| | | Cycloctenidae Simon, 1898 |
| | | Cyrtaucheniidae Simon, 1889 |
| | | Deinopidae C. L. Koch, 1850 |
| | | Desidae Pocock, 1895 |
| | | Dictynidae O. Pickard-Cambridge, 1871 |
| | | Dysderidae C.L. Koch, 1837 |
| | | Eresidae C.L. Koch in Berendt, 1845 |
| | | Filistatidae Simon, 1864 |
| | | Gnaphosidae Pocock, 1898 |
| | | Hahniidae Bertkau, 1878 |
| | | Hersiliidae Thorell, 1870 |
| | | Leptonetidae Simon, 1890 |
| | | Linyphiidae Blackwall, 1859 |
| | | Liocranidae Simon, 1897 |
| | | Lycosidae Sundevall, 1833 |
| | | Macrothelidae Simon, 1892 |
| | | Mimetidae Simon, 1881 |
| | | Miturgidae Simon, 1886 |
| | | Mygalomorphae |
| | | Mysmenidae Petrunkevitch, 1928 |
| | | Nemesiidae Simon, 1892 |
| | | Nephilidae Simon, 1894 |
| | | Nesticidae Simon, 1894 |
| | | Ochyroceratidae Fage, 1912 |
| | | Oecobiidae Blackwall, 1862 |
| | | Oonopidae Simon, 1890 |
| | | Oxyopidae Thorell, 1869 |
| | | Palpimanidae Thorell, 1870 |
| | | Philodromidae Thorell, 1870 |
| | | Pholcidae C.L. Koch, 1850 |
| | | Phrurolithidae Banks, 1892 |
| | | Pimoidae Wunderlich, 1986 |
| | | Pisauridae Simon, 1890 |
| | | Psechridae Simon, 1890 |
| | | Salticidae Blackwall, 1841 |
| | | Scytodidae Blackwall, 1864 |
| | | Segestriidae Simon, 1893 |
| | | Selenopidae Simon, 1897 |
| | | Sicariidae Keyserling, 1880 |
| | | Sparassidae Bertkau, 1872 |
| | | Synaphridae Wunderlich, 1986 |
| | | Tetragnathidae Menge, 1866 |
| | | Theraphosidae Thorell, 1869 |
| | | Theridiidae Sundevall, 1833 |
| | | Theridiosomatidae Simon, 1881 |
| | | Thomisidae Sundevall, 1833 |
| | | Titanoecidae Lehtinen, 1967 |
| | | Trachelidae Simon, 1897 |
| | | Trechaleidae Simon, 1890 |
| | | Uloboridae Thorell, 1869 |
| | | Zodariidae Thorell, 1881 |
| | | Zoropsidae Bertkau, 1882 |
