| Acaridae Latreille, 1802 | Vorratsmilben | 29 | Arten | Taxom |
| Achipteriidae Thor, 1929 | | 5 | Arten | Taxom |
| Actinopodidae Simon, 1892 | Falltürspinnen | 2 | Arten | Taxom |
| Aeroglyphidae Zakhvatkin, 1941 | | 0 | Arten | Taxom |
| Agelenidae C. L. Koch, 1837 | Trichternetzspinnen | 27 | Arten | Taxom |
| Agoristenidae Silhavy, 1973 | | 1 | Art | Taxom |
| Algophagidae Fain, 1974 | | 1 | Art | Taxom |
| Allobuthiscorpiidae Kjellesvig-W..., 1986 | | 1 | Art | Taxom |
| Alloptidae Gaud, 1957 | | 1 | Art | Taxom |
| Amaurobiidae Thorell, 1870 | Fensterspinnen | 6 | Arten | Taxom |
| Amblyommidae Banks, 1907 | | 6 | Arten | Taxom |
| Ameronothridae Willmann, 1931 | | 1 | Art | Taxom |
| Amphinectidae Forster & Wi..., 1973 | | 5 | Arten | Taxom |
| Analgidae Trouessart &..., 1884 | | 2 | Arten | Taxom |
| Anamidae Simon, 1889 | | 2 | Arten | Taxom |
| Anderemaeidae Balogh, 1972 | | 0 | Arten | Taxom |
| Anisitsiellidae Koenike, 1910 | | 0 | Arten | Taxom |
| Anthracomartidae Haase, 1890 | | 5 | Arten | Taxom |
| Anthracosironidae Pocock, 1903 | | 2 | Arten | Taxom |
| Antrodiaetidae Gertsch, 1940 | | 1 | Art | Taxom |
| Anyphaenidae Bertkau, 1878 | Zartspinnen | 7 | Arten | Taxom |
| Anystidae Oudemans, 1936 | | 1 | Art | Taxom |
| Aphantomartidae (Petrunkevitch, 1945) | | 1 | Art | Taxom |
| Araneidae Simon, 1895 | Echte Radnetzspinnen | 105 | Arten | Taxom |
| Archaeometidae Petrunkevitch, 1949 | | 2 | Arten | Taxom |
| Architarbidae Karsch, 1882 | | 18 | Arten | Taxom |
| Arctacaridae Evans, 1955 | | 0 | Arten | Taxom |
| Argasidae C. L. Koch, 1844 | Lederzecken | 3 | Arten | Taxom |
| Arrenuridae Thor, 1900 | | 5 | Arten | Taxom |
| Arthrolycosidae Fritsch, 1904 | | 1 | Art | Taxom |
| Arthromygalidae Petrunkevitch, 1923 | | 1 | Art | Taxom |
| Ascidae Oudemans, 1905 | | 5 | Arten | Taxom |
| Assamiidae Sørensen, 1884 | | 0 | Arten | Taxom |
| Astegistidae Balogh, 1961 | | 3 | Arten | Taxom |
| Atemnidae Chamberlin, 1931 | | 1 | Art | Taxom |
| Athienemanniidae Viets, 1922 | | 1 | Art | Taxom |
| Aturidae Thor, 1900 | | 6 | Arten | Taxom |
| Atypidae Thorell, 1870 | Tapezierspinnen | 2 | Arten | Taxom |
| Austrochilidae Zapfe, 1955 | | 1 | Art | Taxom |
| Autognetidae Grandjean, 1960 | | 2 | Arten | Taxom |
| Avenzoariidae Oudemans, 1905 | | 1 | Art | Taxom |
| Barychelidae Simon, 1889 | | 1 | Art | Taxom |
| Belbidae (Willmann, 1931) | | 1 | Art | Taxom |
| Blattisociidae (Garman, 1948) | | 6 | Arten | Taxom |
| Bothriuridae Simon, 1880 | | 2 | Arten | Taxom |
| Brachychthoniidae Thor, 1934 | | 13 | Arten | Taxom |
| Buthidae C. L. Koch, 1837 | Skorpione | 15 | Arten | Taxom |
| Caddidae Banks, 1892 | | 0 | Arten | Taxom |
| Caloppiidae (Balogh, 1960) | | 1 | Art | Taxom |
| Camerobiidae Southcott, 1957 | | 1 | Art | Taxom |
| Camisiidae Oudemans, 1900 | | 1 | Art | Taxom |
| Canestriniidae Berlese, 1884 | | 2 | Arten | Taxom |
| Caponiidae Simon, 1890 | | 2 | Arten | Taxom |
| Caraboctonidae Kraepelin, 1905 | | 1 | Art | Taxom |
| Carabodidae Koch, 1837 | | 7 | Arten | Taxom |
| Carpoglyphidae Oudemans, 1923 | | 2 | Arten | Taxom |
| Cepheusidae Berlese, 1896 | | 4 | Arten | Taxom |
| Ceratoppiidae (Kunst, 1971) | | 1 | Art | Taxom |
| Ceratozetidae Jacot, 1925 | | 12 | Arten | Taxom |
| Chaetodactylidae Zakhvatkin, 1941 | | 2 | Arten | Taxom |
| Chamobatidae Thor, 1937 | | 5 | Arten | Taxom |
| Cheiridiidae Hansen, 1893 | | 1 | Art | Taxom |
| Cheliferidae Risso, 1826 | | 11 | Arten | Taxom |
| Chernetidae Menge, 1855 | | 16 | Arten | Taxom |
| Cheyletidae Leach, 1815 | Raubmilben | 8 | Arten | Taxom |
| Chirodiscidae Trouessart, 1892 | | 3 | Arten | Taxom |
| Chortoglyphidae Berlese, 1897 | | 2 | Arten | Taxom |
| Chthoniidae Daday, 1888 | | 12 | Arten | Taxom |
| Chummidae Jocqué, 2001 | | 1 | Art | Taxom |
| Clubionidae Wagner, 1887 | Sackspinnen | 36 | Arten | Taxom |
| Cocceupodidae Jesionowska, 2010 | | 1 | Art | Taxom |
| Corinnidae Karsch, 1880 | Dunkelsackspinnen | 29 | Arten | Taxom |
| Cosmetidae C. L. Koch, 1839 | | 2 | Arten | Taxom |
| Crotoniidae Thorell, 1876 | | 9 | Arten | Taxom |
| Cryptognathidae Luxton, 1973 | | 1 | Art | Taxom |
| Ctenidae Keyserling, 1877 | Kammspinnen | 4 | Arten | Taxom |
| Cunaxidae Thor, 1902 | | 3 | Arten | Taxom |
| Curculioididae Cockerell, 1916 | | 6 | Arten | Taxom |
| Cyatholipidae Simon, 1894 | | 2 | Arten | Taxom |
| Cybaeidae Banks, 1892 | Gebirgstrichterspinnen | 2 | Arten | Taxom |
| Cycloctenidae Simon, 1898 | | 0 | Arten | Taxom |
| Cyclophthalmidae Thorell & Li..., 1885 | | 1 | Art | Taxom |
| Cymbaeremaeidae Sellnick, 1928 | | 1 | Art | Taxom |
| Damaeidae Berlese, 1896 | | 7 | Arten | Taxom |
| Damaeolidae Grandjean, 1965 | | 1 | Art | Taxom |
| Deinopidae C. L. Koch, 1850 | | 3 | Arten | Taxom |
| Demodecidae Nicolet, 1855 | | 12 | Arten | Taxom |
| Dermanyssidae Kolenati, 1859 | | 2 | Arten | Taxom |
| Dermoglyphidae Mégnin & Tro..., 1884 | | 0 | Arten | Taxom |
| Desidae Pocock, 1895 | Gezeitenspinnen | 4 | Arten | Taxom |
| Dictynidae O. P-Cambridge, 1871 | Kräuselspinnen | 33 | Arten | Taxom |
| Digamasellidae Evans, 1957 | | 1 | Art | Taxom |
| Dipluridae Simon, 1889 | Doppelschwanzspinnen | 2 | Arten | Taxom |
| Diptilomiopidae Boczek, 1964 | | 2 | Arten | Taxom |
| Drymusidae Simon, 1893 | | 0 | Arten | Taxom |
| Dysderidae C. L. Koch, 1837 | Sechsaugen | 5 | Arten | Taxom |
| Eniochthoniidae Grandjean, 1947 | | 2 | Arten | Taxom |
| Eobuthidae Kjellesvig-W..., 1986 | | 1 | Art | Taxom |
| Eophrynidae Karsch, 1882 | | 2 | Arten | Taxom |
| Eoscorpiidae Scudder, 1884 | | 5 | Arten | Taxom |
| Epicriidae Berlese, 1885 | | 1 | Art | Taxom |
| Epidermoptidae Trouessart, 1892 | | 2 | Arten | Taxom |
| Epilohmanniidae Oudemans, 1923 | | 2 | Arten | Taxom |
| Epimyodicidae Fain, Lukosc..., 1982 | | 1 | Art | Taxom |
| Eremaeidae Oudemans, 1900 | | 3 | Arten | Taxom |
| Eremobatidae Kraepelin, 1899 | | 1 | Art | Taxom |
| Eremobelbidae Balogh, 1961 | | 0 | Arten | Taxom |
| Eresidae C. L. Koch, 1851 | Röhrenspinnen | 1 | Art | Taxom |
| Ereynetidae Schrank, 1776 | | 2 | Arten | Taxom |
| Eriophyidae Nalepa, 1898 | Gallmilben | 108 | Arten | Taxom |
| Erythraeidae Oudemans, 1902 | | 5 | Arten | Taxom |
| Eulohmanniidae Grandjean, 1931 | | 1 | Art | Taxom |
| Eupalopsellidae Willmann, 1952 | | 1 | Art | Taxom |
| Euphthiracaridae Jacot, 1930 | | 3 | Arten | Taxom |
| Euscorpiidae Laurie, 1896 | | 1 | Art | Taxom |
| Eviphididae Berlese, 1913 | | 2 | Arten | Taxom |
| Eylaidae Leach, 1815 | | 1 | Art | Taxom |
| Fedrizziidae Trägårdh, 1937 | | 1 | Art | Taxom |
| Feltriidae Viets, 1926 | | 4 | Arten | Taxom |
| Filistatidae Ausserer, 1867 | Lochröhrenspinnen | 1 | Art | Taxom |
| Fortuyniidae Hammen, 1963 | | 1 | Art | Taxom |
| Gabuciniidae Gaud & Atyeo, 1975 | | 1 | Art | Taxom |
| Gallieniellidae Millot, 1947 | | 2 | Arten | Taxom |
| Galumnidae Jacot, 1925 | | 3 | Arten | Taxom |
| Garypidae Simon, 1879 | | 2 | Arten | Taxom |
| Gaudoglyphidae (W.A. Bruce &..., 1976) | | 1 | Art | Taxom |
| Geogarypidae Chamberlin, 1930 | | 2 | Arten | Taxom |
| Glycyphagidae De Geer, 1778 | | 16 | Arten | Taxom |
| Gnaphosidae Pocock, 1898 | Glattbauchspinnen | 67 | Arten | Taxom |
| Gonyleptidae Sundevall, 1833 | | 2 | Arten | Taxom |
| Gradungulidae Forster, 1955 | | 1 | Art | Taxom |
| Gustaviidae Oudemans, 1900 | | 1 | Art | Taxom |
| Gymnodamaeidae Grandjean, 1954 | | 3 | Arten | Taxom |
| Hahniidae Bertkau, 1878 | Bodenspinnen | 13 | Arten | Taxom |
| Halacaridae Murray, 1877 | Meeresmilben | 16 | Arten | Taxom |
| Haplozetidae Grandjean, 1936 | | 2 | Arten | Taxom |
| Harpirhynchidae Dubinin, 1957 | | 2 | Arten | Taxom |
| Heloscorpionidae Kjellesvig-W..., 1986 | | 1 | Art | Taxom |
| Hemisarcoptidae Oudemans, 1904 | | 0 | Arten | Taxom |
| Hermanniellidae Grandjean, 1934 | | 1 | Art | Taxom |
| Hermanniidae Sellnick, 1928 | | 3 | Arten | Taxom |
| Hersiliidae Thorell, 1870 | | 0 | Arten | Taxom |
| Hesperolpiidae Chamberlin, 1930 | | 2 | Arten | Taxom |
| Heterocheylidae Trägårdh, 1950 | | 0 | Arten | Taxom |
| Hexathelidae Simon, 1892 | | 5 | Arten | Taxom |
| Histiostomatidae Berlese, 1897 | | 7 | Arten | Taxom |
| Holarchaeidae Forster & Pl..., 1984 | | 1 | Art | Taxom |
| Hormuridae Laurie, 1896 | | 1 | Art | Taxom |
| Hubbardiidae Cook, 1899 | | 6 | Arten | Taxom |
| Humerobatidae Grandjean, 1970 | | 2 | Arten | Taxom |
| Hungarohydracaridae Motas & Tana..., 1959 | | 1 | Art | Taxom |
| Hyadesiidae Halbert, 1915 | | 1 | Art | Taxom |
| Hydrachnidae Leach, 1815 | | 2 | Arten | Taxom |
| Hydrodromidae Viets, 1936 | | 1 | Art | Taxom |
| Hydrovolziidae Thor, 1905 | | 1 | Art | Taxom |
| Hydrozetidae Grandjean, 1954 | | 1 | Art | Taxom |
| Hydryphantidae Piersig, 1896 | | 8 | Arten | Taxom |
| Hygrobatidae Koch, 1842 | | 11 | Arten | Taxom |
| Hypochthoniidae Berlese, 1910 | | 1 | Art | Taxom |
| Hypoderatidae (Murray, 1877) | | 4 | Arten | Taxom |
| Idiopidae Simon, 1892 | | 7 | Arten | Taxom |
| Iolinidae Pritchard, 1956 | | 0 | Arten | Taxom |
| Isobuthidae Petrunkevitch, 1913 | | 2 | Arten | Taxom |
| Ixodidae C. L. Koch, 1844 | Holzböcke | 22 | Arten | Taxom |
| Ixodorhynchidae Ewing, 1923 | | 1 | Art | Taxom |
| Johnstonianidae Thor, 1935 | | 1 | Art | Taxom |
| Knemidokoptidae (Lavoipierre ..., 1951) | | 1 | Art | Taxom |
| Kreischeriidae Haase, 1890 | | 2 | Arten | Taxom |
| Labidostommatidae Oudemans, 1904 | | 1 | Art | Taxom |
| Laelapidae Berlese, 1892 | | 16 | Arten | Taxom |
| Lagonomegopidae Eskov & Wund..., 1995 | | 1 | Art | Taxom |
| Lamponidae Simon, 1893 | | 11 | Arten | Taxom |
| Larcidae Harvey, 1992 | | 1 | Art | Taxom |
| Lebertiidae Thor, 1900 | | 0 | Arten | Taxom |
| Leeuwenhoekiidae Womersley, 1944 | | 0 | Arten | Taxom |
| Liacaridae Sellnick, 1928 | | 5 | Arten | Taxom |
| Licneremaeidae Grandjean, 1931 | | 1 | Art | Taxom |
| Licnodamaeidae (Grandjean, 1954) | | 2 | Arten | Taxom |
| Liebstadiidae J. & P. Balogh, 1984 | | 1 | Art | Taxom |
| Limnesiidae Thor, 1900 | | 2 | Arten | Taxom |
| Limnocharidae Grube, 1859 | | 1 | Art | Taxom |
| Linyphiidae Blackwall, 1859 | Baldachinspinnen | 339 | Arten | Taxom |
| Liocranidae Simon, 1897 | Bodenspinnen | 12 | Arten | Taxom |
| Listrophoridae Mégnin & Tro..., 1884 | | 3 | Arten | Taxom |
| Lohmanniidae Berlese, 1916 | | 1 | Art | Taxom |
| Lycosidae Lehtinen & H..., 1979 | Wolfspinnen | 107 | Arten | Taxom |
| Machuellidae Balogh, 1983 | | 1 | Art | Taxom |
| Macrochelidae Vitzthum, 1930 | | 14 | Arten | Taxom |
| Macronyssidae Oudemans, 1936 | | 1 | Art | Taxom |
| Malaconothridae Berlese, 1916 | | 2 | Arten | Taxom |
| Mazoniidae Petrunkevitch, 1913 | | 2 | Arten | Taxom |
| Mecysmaucheniidae Simon, 1895 | | 1 | Art | Taxom |
| Melicharidae (Hirschmann, 1962) | | 3 | Arten | Taxom |
| Mesophonidae Wills, 1910 | | 3 | Arten | Taxom |
| Mesoplophoridae Ewing, 1917 | | 0 | Arten | Taxom |
| Micreremidae Grandjean, 1954 | | 1 | Art | Taxom |
| Micropholcommatidae Hickman, 1943 | | 6 | Arten | Taxom |
| Microtrombidiidae Womersley, 1936 | | 1 | Art | Taxom |
| Mideidae Thor, 1911 | | 1 | Art | Taxom |
| Mideopsidae Koenike, 1910 | | 6 | Arten | Taxom |
| Mimetidae Simon, 1881 | Spinnenfresser | 9 | Arten | Taxom |
| Miturgidae Simon, 1885 | Dornfingerspinnen | 9 | Arten | Taxom |
| Mochlozetidae Grandjean, 1960 | | 1 | Art | Taxom |
| Momoniidae Viets, 1926 | | 1 | Art | Taxom |
| Monoscutidae (Forster, 1948) | | 1 | Art | Taxom |
| Myobiidae Megnin, 1877 | | 1 | Art | Taxom |
| Myocoptidae Gunther, 1942 | | 1 | Art | Taxom |
| Nanhermanniidae Sellnick, 1928 | | 4 | Arten | Taxom |
| Nanorchestidae Luxton, 1984 | | 0 | Arten | Taxom |
| Nemastomatidae Simon, 1872 | Fadenkanker | 5 | Arten | Taxom |
| Nemesiidae Simon, 1892 | Braune Falltürspinnen | 1 | Art | Taxom |
| Nenteriidae Hirschmann, 1979 | | 1 | Art | Taxom |
| Neoacaridae (Motas & Tana..., 1947) | | 1 | Art | Taxom |
| Neobisiidae Chamberlin, 1930 | Moosskorpione | 7 | Arten | Taxom |
| Neopilionidae Lawrence, 1931 | | 1 | Art | Taxom |
| Nesticidae Simon, 1894 | Höhlenspinnen | 2 | Arten | Taxom |
| Nicodamidae Simon, 1898 | | 4 | Arten | Taxom |
| Nosybelbidae Mahunka, 1994 | | 0 | Arten | Taxom |
| Nothridae Berlese, 1896 | | 5 | Arten | Taxom |
| Oecobiidae Blackwall, 1862 | Scheibennetzspinnen | 3 | Arten | Taxom |
| Ologamasidae Ryke, 1962 | | 3 | Arten | Taxom |
| Olpiidae Banks, 1895 | | 2 | Arten | Taxom |
| Oonopidae Simon, 1890 | Zwergsechsaugenspinnen | 31 | Arten | Taxom |
| Oppiidae Sellnick, 1937 | | 14 | Arten | Taxom |
| Oribatellidae Jacot, 1925 | | 4 | Arten | Taxom |
| Oribatulidae Thor, 1929 | | 7 | Arten | Taxom |
| Oribellidae (Kunst, 1971) | | 2 | Arten | Taxom |
| Oribotritiidae Grandjean, 1954 | | 0 | Arten | Taxom |
| Orsolobidae Cooke, 1965 | | 1 | Art | Taxom |
| Otopheidomenidae Treat, 1955 | | 2 | Arten | Taxom |
| Oxyopidae Thorell, 1870 | Luchsspinnen | 11 | Arten | Taxom |
| Pachylaelapidae Berlese, 1913 | | 1 | Art | Taxom |
| Palaeophonidae Thorell & Li..., 1885 | | 2 | Arten | Taxom |
| Paracharontidae Weygoldt, 1996 | | 1 | Art | Taxom |
| Paraisobuthidae Kjellesvig-W..., 1986 | | 2 | Arten | Taxom |
| Parantennulidae Willmann, 1940 | | 0 | Arten | Taxom |
| Pararchaeidae Forster & Pl..., 1984 | | 2 | Arten | Taxom |
| Parasitidae Oudemans, 1901 | Käfermilben | 21 | Arten | Taxom |
| Pareobuthidae Kjellesvig-W..., 1986 | | 1 | Art | Taxom |
| Parholaspididae Evans, 1956 | | 2 | Arten | Taxom |
| Penthaleidae Oudemans, 1931 | Sandmilben | 1 | Art | Taxom |
| Periegopidae Simon, 1893 | | 1 | Art | Taxom |
| Pettalidae Simon, 1879 | | 3 | Arten | Taxom |
| Pezidae Harvey, 1990 | | 1 | Art | Taxom |
| Phalangiidae Latreille, 1802 | Schneider | 19 | Arten | Taxom |
| Phalangodidae Simon, 1879 | | 2 | Arten | Taxom |
| Phenopelopidae Petrunkevitch, 1955 | | 6 | Arten | Taxom |
| Philodanidae Kethley, 1977 | | 1 | Art | Taxom |
| Philodromidae Thorell, 1870 | Laufspinnen | 24 | Arten | Taxom |
| Pholcidae C. L. Koch, 1851 | Zitterspinnen | 14 | Arten | Taxom |
| Phthiracaridae Perty, 1841 | | 16 | Arten | Taxom |
| Phytoptidae Manson, 1970 | | 9 | Arten | Taxom |
| Phytoseiidae Berlese, 1916 | | 5 | Arten | Taxom |
| Pionidae Thor, 1900 | | 6 | Arten | Taxom |
| Pisauridae Simon, 1890 | Jagdspinnen | 12 | Arten | Taxom |
| Plateremaeidae Trägårdh, 1931 | | 1 | Art | Taxom |
| Plesiosironidae Pocock, 1911 | | 1 | Art | Taxom |
| Podapolipidae Husband, 1990 | | 3 | Arten | Taxom |
| Podoctidae Roewer, 1912 | | 0 | Arten | Taxom |
| Poliocheridae Scudder, 1884 | | 2 | Arten | Taxom |
| Praearcturidae Kjellesvig-W..., 1986 | | 1 | Art | Taxom |
| Proctophyllodidae Trouessart &..., 1884 | | 1 | Art | Taxom |
| Pseudobuthiscorpiidae Kjellesvig-W..., 1986 | | 1 | Art | Taxom |
| Psorergatidae Womersley, 1941 | | 2 | Arten | Taxom |
| Pterolichidae Trouessart, 1899 | | 2 | Arten | Taxom |
| Pteronyssidae Oudemans, 1941 | | 2 | Arten | Taxom |
| Pterygosomatidae Womersley, 1941 | Geckomilben | 3 | Arten | Taxom |
| Punctoribatidae Thor, 1937 | | 7 | Arten | Taxom |
| Pygmephoridae Krczal, 1964 | | 0 | Arten | Taxom |
| Pyritaraneidae Petrunkevitch, 1953 | | 1 | Art | Taxom |
| Pyroglyphidae Cunliffe, 1958 | | 1 | Art | Taxom |
| Quadroppiidae Balogh, 1983 | | 5 | Arten | Taxom |
| Rhinonyssidae Trouessart, 1895 | | 1 | Art | Taxom |
| Rhodacaridae Oudemans, 1902 | | 4 | Arten | Taxom |
| Rosensteiniidae Cooreman, 1954 | | 2 | Arten | Taxom |
| Sabaconidae Dresco, 1970 | | 1 | Art | Taxom |
| Salticidae Blackwall, 1842 | Springspinnen | 111 | Arten | Taxom |
| Sarcoptidae Megnin, 1877 | Krätzemilben | 5 | Arten | Taxom |
| Scheloribatidae Jacot, 1935 | | 4 | Arten | Taxom |
| Sclerosomatidae Simon, 1879 | Kammkrallenkanker | 8 | Arten | Taxom |
| Scorpionidae Pierre André..., 1802 | | 9 | Arten | Taxom |
| Scutoverticidae Grandjean, 1954 | | 1 | Art | Taxom |
| Scytodidae Blackwall, 1864 | Leimschleuderspinnen | 2 | Arten | Taxom |
| Segestriidae Simon, 1893 | Fischernetzspinnen | 6 | Arten | Taxom |
| Selenopidae Simon, 1897 | | 2 | Arten | Taxom |
| Sicariidae Keyserling, 1880 | Geigenspinnen | 2 | Arten | Taxom |
| Smarididae Kramer, 1878 | | 0 | Arten | Taxom |
| Solpugidae Leach, 1815 | | 1 | Art | Taxom |
| Sparassidae Bertkau, 1872 | Huschspinnen | 27 | Arten | Taxom |
| Sperchontidae Thor, 1900 | | 3 | Arten | Taxom |
| Spinturnicidae Oudemans, 1902 | Flughautmilben | 1 | Art | Taxom |
| Spongiophonidae Kjellesvig-W..., 1986 | | 1 | Art | Taxom |
| Stenoscorpionidae Kjellesvig-W..., 1986 | | 2 | Arten | Taxom |
| Stigmaeidae Wood, 1967 | | 3 | Arten | Taxom |
| Stiphidiidae Dalmas, 1917 | | 11 | Arten | Taxom |
| Stygnommatidae Roewer, 1923 | | 2 | Arten | Taxom |
| Suctobelbidae Jacot, 1938 | | 8 | Arten | Taxom |
| Suidasiidae Hughes, 1948 | | 1 | Art | Taxom |
| Synotaxidae Simon, 1894 | | 1 | Art | Taxom |
| Syringophilidae Lavoipierre, 1953 | | 12 | Arten | Taxom |
| Tanaupodidae Thor, 1935 | | 1 | Art | Taxom |
| Tarsocheylidae Berlese, 1904 | | 1 | Art | Taxom |
| Tarsonemidae Kramer, 1877 | Fadenfußmilben | 12 | Arten | Taxom |
| Tectocepheidae Grandjean, 1954 | | 1 | Art | Taxom |
| Tegoribatidae Grandjean, 1954 | | 1 | Art | Taxom |
| Tengellidae (Dahl, 1908) | | 1 | Art | Taxom |
| Tenuipalpidae Berlese, 1913 | Falsche Spinnmilben | 9 | Arten | Taxom |
| Tetrablemmidae O. P-Cambridge, 1873 | | 1 | Art | Taxom |
| Tetragnathidae Menge, 1866 | Dickkieferspinnen | 42 | Arten | Taxom |
| Tetranychidae Donnadieu, 1875 | Spinnmilben | 24 | Arten | Taxom |
| Theraphosidae Thorell, 1870 | Vogelspinne | 0 | Arten | Taxom |
| Theridiidae Sundevall, 1833 | Kugelspinnen | 97 | Arten | Taxom |
| Theridiosomatidae Simon, 1881 | Zwergkreuzspinnen | 2 | Arten | Taxom |
| Thomisidae Sundevall, 1833 | Krabbenspinnen | 55 | Arten | Taxom |
| Thyrisomidae Grandjean, 1953 | | 1 | Art | Taxom |
| Titanoecidae Lehtinen, 1967 | Kalksteinspinnen | 1 | Art | Taxom |
| Torrenticolidae Thor, 1902 | | 3 | Arten | Taxom |
| Trachyuropodidae Kramer, 1881 | | 1 | Art | Taxom |
| Travuniidae Absolon & Kr..., 1932 | | 1 | Art | Taxom |
| Trematuridae Berlese, 1917 | | 2 | Arten | Taxom |
| Trhypochthoniidae Willmann, 1931 | | 1 | Art | Taxom |
| Triaenonychidae Sörensen, 1886 | | 20 | Arten | Taxom |
| Trigonotarbidae Petrunkevitch, 1949 | | 1 | Art | Taxom |
| Triophytydeidae | | 0 | Arten | Taxom |
| Trochanteriidae Karsch, 1879 | | 6 | Arten | Taxom |
| Trogulidae Sundevall, 1833 | Brettkanker | 2 | Arten | Taxom |
| Trombiculidae Ewing, 1929 | Herbstmilben | 3 | Arten | Taxom |
| Trombidiidae Leach, 1815 | Laufmilben | 0 | Arten | Taxom |
| Tydeidae Kramer, 1877 | Staubmilben | 1 | Art | Taxom |
| Uloboridae Thorell, 1869 | Kräuselradnetzspinnen | 11 | Arten | Taxom |
| Unionicolidae Oudemans, 1909 | | 4 | Arten | Taxom |
| Urodinychidae Berlese, 1917 | | 0 | Arten | Taxom |
| Uropodidae Kramer, 1881 | | 3 | Arten | Taxom |
| Vaejovidae Thorell, 1876 | | 1 | Art | Taxom |
| Veigaiidae Oudemans, 1939 | | 4 | Arten | Taxom |
| Willsiscorpionidae Kjellesvig-W..., 1986 | | 1 | Art | Taxom |
| Winterschmidtiidae Oudemans, 1923 | | 4 | Arten | Taxom |
| Withiidae Chamberlin, 1931 | | 1 | Art | Taxom |
| Xenillidae Woolley & Hi..., 1966 | | 2 | Arten | Taxom |
| Zalmoxidae (Sörensen, 1886) | | 3 | Arten | Taxom |
| Zerconidae Berlese, 1892 | | 4 | Arten | Taxom |
| Zodariidae Thorell, 1881 | Ameisenjäger | 14 | Arten | Taxom |
| Zoridae F. O. P-Camb..., 1893 | Wanderspinnen | 6 | Arten | Taxom |
| Zoropsidae Bertkau, 1882 | Kräuseljagdspinnen | 5 | Arten | Taxom |