| Acaronychidae Grandjean, 1932 | | 1 | Species | Taxom |
| Actinopodidae Simon, 1892 | Mouse Spiders | 0 | Species | Taxom |
| Amblyommidae Banks, 1907 | | 4 | Species | Taxom |
| Anapidae Simon, 1895 | Anapid spiders | 4 | Species | Taxom |
| Anderemaeidae Balogh, 1972 | | 0 | Species | Taxom |
| Anyphaenidae Bertkau, 1878 | Anyphaenid sac spiders | 6 | Species | Taxom |
| Araneidae Simon, 1895 | Golden orb web spiders | 122 | Species | Taxom |
| Arceremaeidae Balogh, 1972 | | 2 | Species | Taxom |
| Atemnidae Chamberlin, 1931 | | 2 | Species | Taxom |
| Atopochthoniidae Grandjean, 1949 | | 0 | Species | Taxom |
| Buthidae C. L. Koch, 1837 | Arrowbreasted scorpions | 3 | Species | Taxom |
| Caponiidae Simon, 1890 | Caponiid spiders | 3 | Species | Taxom |
| Carabodidae Koch, 1837 | | 4 | Species | Taxom |
| Ceratoppiidae (Kunst, 1971) | | 2 | Species | Taxom |
| Chactidae Reginald Inn..., 1893 | Fatclaw scorpions | 2 | Species | Taxom |
| Charassobatidae Grandjean, 1958 | | 3 | Species | Taxom |
| Chernetidae Menge, 1855 | | 12 | Species | Taxom |
| Chthoniidae Daday, 1888 | | 7 | Species | Taxom |
| Clubionidae Wagner, 1887 | Clubiones | 1 | Species | Taxom |
| Corinnidae Karsch, 1880 | Ant-like Sac Spiders | 15 | Species | Taxom |
| Cosmetidae C. L. Koch, 1839 | | 0 | Species | Taxom |
| Ctenidae Keyserling, 1877 | Tropical wolf spiders | 21 | Species | Taxom |
| Cymbaeremaeidae Sellnick, 1928 | | 0 | Species | Taxom |
| Cyrtaucheniidae Simon, 1892 | Cyrtaucheiid spiders | 1 | Species | Taxom |
| Damaeolidae Grandjean, 1965 | | 0 | Species | Taxom |
| Dampfiellidae Balogh, 1961 | | 2 | Species | Taxom |
| Deinopidae C. L. Koch, 1850 | Net-casters | 0 | Species | Taxom |
| Dictynidae O. P-Cambridge, 1871 | Dictynid spiders | 1 | Species | Taxom |
| Dipluridae Simon, 1889 | Curtainweb Spiders | 1 | Species | Taxom |
| Epactozetidae Grandjean, 1930 | | 2 | Species | Taxom |
| Epilohmanniidae Oudemans, 1923 | | 2 | Species | Taxom |
| Eremaeozetidae Piffl, 1972 | | 2 | Species | Taxom |
| Eremobelbidae Balogh, 1961 | | 5 | Species | Taxom |
| Eremulidae Grandjean, 1965 | | 3 | Species | Taxom |
| Escadabiidae Kury & Pérez, 2003 | | 0 | Species | Taxom |
| Eukoeneniidae Condé, 1965 | | 1 | Species | Taxom |
| Euphthiracaridae Jacot, 1930 | | 0 | Species | Taxom |
| Euscorpiidae Laurie, 1896 | Shorttail scorpions | 1 | Species | Taxom |
| Fissiphalliidae (Martens, 1988) | | 1 | Species | Taxom |
| Galumnidae Jacot, 1925 | | 3 | Species | Taxom |
| Garypidae Simon, 1879 | | 1 | Species | Taxom |
| Geogarypidae Chamberlin, 1930 | | 1 | Species | Taxom |
| Gnaphosidae Pocock, 1898 | Flat-bellied ground spiders | 18 | Species | Taxom |
| Gonyleptidae Sundevall, 1833 | | 4 | Species | Taxom |
| Guasiniidae Gonzalez-Sponga, 1997 | | 1 | Species | Taxom |
| Haplochthoniidae Van der Hammen, 1959 | | 1 | Species | Taxom |
| Haplozetidae Grandjean, 1936 | | 12 | Species | Taxom |
| Hemileiidae (J. & P. Balogh, 1984) | | 0 | Species | Taxom |
| Hermanniellidae Grandjean, 1934 | | 1 | Species | Taxom |
| Hersiliidae Thorell, 1870 | Hersiliids | 1 | Species | Taxom |
| Heterobelbidae Balogh, 1961 | | 3 | Species | Taxom |
| Hubbardiidae Cook, 1899 | Hubbardiid shorttailed whipscorpions | 6 | Species | Taxom |
| Hydrozetidae Grandjean, 1954 | | 0 | Species | Taxom |
| Hypochthoniidae Berlese, 1910 | | 3 | Species | Taxom |
| Ideoroncidae Chamberlin, 1930 | | 2 | Species | Taxom |
| Idiopidae Simon, 1892 | Armored trapdoor spiders | 0 | Species | Taxom |
| Krendowskiidae Viets, 1926 | | 0 | Species | Taxom |
| Labidostommatidae Oudemans, 1904 | | 0 | Species | Taxom |
| Licneremaeidae Grandjean, 1931 | | 1 | Species | Taxom |
| Linyphiidae Blackwall, 1859 | Dwarf spiders | 1 | Species | Taxom |
| Lohmanniidae Berlese, 1916 | | 5 | Species | Taxom |
| Lycosidae Lehtinen & H..., 1979 | Ground Spiders | 2 | Species | Taxom |
| Macrochelidae Vitzthum, 1930 | | 3 | Species | Taxom |
| Malaconothridae Berlese, 1916 | | 2 | Species | Taxom |
| Mesoplophoridae Ewing, 1917 | | 1 | Species | Taxom |
| Microstigmatidae Raven & Plat..., 1981 | Microstigmatid spiders | 2 | Species | Taxom |
| Microtegeidae Balogh, 1972 | | 1 | Species | Taxom |
| Microzetidae Grandjean, 1936 | | 5 | Species | Taxom |
| Mimetidae Simon, 1881 | Pirate spider | 2 | Species | Taxom |
| Miturgidae Simon, 1885 | Long-legged sac spiders | 2 | Species | Taxom |
| Mochlozetidae Grandjean, 1960 | | 1 | Species | Taxom |
| Mysmenidae Petrunkevitch, 1928 | Dwarf cobweb spiders | 3 | Species | Taxom |
| Nanhermanniidae Sellnick, 1928 | | 1 | Species | Taxom |
| Nehypochthoniidae Norton & Metz, 1980 | | 0 | Species | Taxom |
| Neogoveidae Shear, 1980 | | 2 | Species | Taxom |
| Neoliodidae (Sellnick, 1928) | | 0 | Species | Taxom |
| Ochyroceratidae Fage, 1912 | Midget ground weaver | 5 | Species | Taxom |
| Olpiidae Banks, 1895 | | 1 | Species | Taxom |
| Oonopidae Simon, 1890 | Dwarf Cell Spiders | 9 | Species | Taxom |
| Oppiidae Sellnick, 1937 | | 10 | Species | Taxom |
| Oribatellidae Jacot, 1925 | | 3 | Species | Taxom |
| Oribotritiidae Grandjean, 1954 | | 0 | Species | Taxom |
| Oripodidae Jacot, 1925 | | 2 | Species | Taxom |
| Otocepheidae Balogh, 1961 | | 3 | Species | Taxom |
| Oxyopidae Thorell, 1870 | Lynx spiders | 5 | Species | Taxom |
| Palpimanidae Thorell, 1870 | Palp-footed spiders | 2 | Species | Taxom |
| Parakalummidae Grandjean, 1936 | | 0 | Species | Taxom |
| Paratropididae Simon, 1889 | Bald-legged spiders | 0 | Species | Taxom |
| Parhypochthoniidae Grandjean, 1932 | | 0 | Species | Taxom |
| Phalangodidae Simon, 1879 | | 0 | Species | Taxom |
| Pholcidae C. L. Koch, 1851 | Carpenter spider | 12 | Species | Taxom |
| Phrynidae Blanchard, 1852 | | 1 | Species | Taxom |
| Phthiracaridae Perty, 1841 | | 2 | Species | Taxom |
| Pisauridae Simon, 1890 | Big wolf spider | 9 | Species | Taxom |
| Plasmobatidae Grandjean, 1961 | | 4 | Species | Taxom |
| Plateremaeidae Trägårdh, 1931 | | 1 | Species | Taxom |
| Proctophyllodidae Trouessart &..., 1884 | | 1 | Species | Taxom |
| Protoribatidae J. & P. Balogh, 1984 | | 2 | Species | Taxom |
| Pterolichidae Trouessart, 1899 | | 1 | Species | Taxom |
| Rhagodidae Pocock, 1897 | | 1 | Species | Taxom |
| Rhynchoribatidae Balogh, 1961 | | 7 | Species | Taxom |
| Ricinoididae Ewing, 1929 | Hooded tickspiders | 2 | Species | Taxom |
| Salticidae Blackwall, 1842 | Jumping Spider | 99 | Species | Taxom |
| Samoidae Sørensen, 1886 | | 1 | Species | Taxom |
| Scheloribatidae Jacot, 1935 | | 3 | Species | Taxom |
| Sclerosomatidae Simon, 1879 | Sclerosomatid Harvestmen | 2 | Species | Taxom |
| Scutacaridae Paoli, 1911 | | 0 | Species | Taxom |
| Scytodidae Blackwall, 1864 | Glue spitter | 8 | Species | Taxom |
| Segestriidae Simon, 1893 | Six-eyed Spiders | 3 | Species | Taxom |
| Selenopidae Simon, 1897 | Flatties | 3 | Species | Taxom |
| Senoculidae Simon, 1890 | Senoculid spiders | 2 | Species | Taxom |
| Sparassidae Bertkau, 1872 | Giant crab spiders | 4 | Species | Taxom |
| Sternoppiidae Balogh & Mah..., 1969 | | 2 | Species | Taxom |
| Stygnidae Simon, 1879 | | 3 | Species | Taxom |
| Stygnommatidae Roewer, 1923 | | 0 | Species | Taxom |
| Suctobelbidae Jacot, 1938 | | 4 | Species | Taxom |
| Syarinidae Chamberlin, 1930 | | 3 | Species | Taxom |
| Symphytognathidae Hickman, 1931 | Dwarf orb-weavers | 1 | Species | Taxom |
| Synotaxidae Simon, 1894 | Synotaxid spiders | 2 | Species | Taxom |
| Tectocepheidae Grandjean, 1954 | | 1 | Species | Taxom |
| Tenuipalpidae Berlese, 1913 | False spider mites | 1 | Species | Taxom |
| Teratoppiidae Balogh, 1983 | | 2 | Species | Taxom |
| Tetrablemmidae O. P-Cambridge, 1873 | Armored spider | 1 | Species | Taxom |
| Tetragnathidae Menge, 1866 | Elongated Orb Weavers | 5 | Species | Taxom |
| Tetranychidae Donnadieu, 1875 | Spider mites | 3 | Species | Taxom |
| Thelyphonidae Lucas, 1835 | | 1 | Species | Taxom |
| Theraphosidae Thorell, 1870 | Bird-eating spiders | 9 | Species | Taxom |
| Theridiidae Sundevall, 1833 | Cobweb And Widow Spiders | 33 | Species | Taxom |
| Theridiosomatidae Simon, 1881 | Ray orbweavers | 3 | Species | Taxom |
| Thomisidae Sundevall, 1833 | Crab Spider | 5 | Species | Taxom |
| Trechaleidae Simon, 1890 | Trechaleid spiders | 11 | Species | Taxom |
| Trhypochthoniidae Willmann, 1931 | | 3 | Species | Taxom |
| Tydeidae Kramer, 1877 | Tydeid mites | 1 | Species | Taxom |
| Uloboridae Thorell, 1869 | Cribellate orb weavers | 6 | Species | Taxom |
| Withiidae Chamberlin, 1931 | | 6 | Species | Taxom |
| Xenillidae Woolley & Hi..., 1966 | | 1 | Species | Taxom |
| Zalmoxidae (Sörensen, 1886) | | 0 | Species | Taxom |
| Zodariidae Thorell, 1881 | Ant spiders | 2 | Species | Taxom |
