Taxonomic names from J. A. Dunlop et al. 2013

  • Achaearanea, Strand 1929 [Theridiidae]
  • Acrometa pseudorobusta, Dunlop and Jekel 2009 [Synotaxidae]
  • Adelophthalmoidea, superfamily, Tollerton 1989 [Eurypterida]
  • Adelophthalmus brasdorense, Bell 1922 [Adelophthalmidae]
  • Adelophthalmus carbonarius, Chernyshev 1933 [Adelophthalmidae]
  • Adelophthalmus chinensis, Grabau 1920 [Adelophthalmidae]
  • Adelophthalmus dumonti, Stainier 1917 [Adelophthalmidae]
  • Adelophthalmus lohesti, Dewalque 1889 [Adelophthalmidae]
  • Adelophthalmus mazonensis, Meek and Worthen 1868 [Adelophthalmidae]
  • Adelophthalmus moyseyi, Woodward 1907 [Adelophthalmidae]
  • Adelophthalmus perornatus (Peach 1882) [Adelophthalmidae]
  • Adelophthalmus pruvosti, Kjellesvig-Waering 1948 [Adelophthalmidae]
  • Adelophthalmus wilsoni, Woodward 1888 [Adelophthalmidae]
  • Adelphacaridae, family, Grandjean 1954 [Adelphacaridae]
  • Agelena, Walckenaer 1805 [Agelenidae]
  • Alicorhagiidae, family, Grandjean 1939 [Alicorhagiidae]
  • Alicorhagiina [Acariformes]
  • Alicorhagioidea, superfamily, Grandjean 1939 [Acariformes]
  • Allothrombium, Berlese 1903 [Trombidiidae]
  • Alopecosa, Simon 1885 [Lycosidae]
  • Alycidae, family, Canestrini and Fanzago 1877 [Alycidae]
  • Alycina [Acariformes]
  • Alycoidea, superfamily, Canestrini and Fanzago 1877 [Acariformes]
  • Amaurobiidae, family, Thorell 1870 [Amaurobiidae]
  • Amaurobius, Koch 1837 [unclassified genus]
  • Amauropilio, Mello-Leitao 1937 [Sclerosomatidae]
  • Amblyolpium, Simon 1898 [Garypinidae]
  • Amblypygi, order, Thorell 1883 [Amblypygi]
  • Ammotheidae, family, Dohrn 1881 [Ammotheidae]
  • Ammothellidae, family, Fry 1978 [Ammotheidae]
  • Anapidae, family, Simon 1895 [Anapidae]
  • Anderella, Moore et al. 2007 [Anderella]
  • Anderella parva, Moore et al. 2007 [Anderella parva]
  • Anoplodactylidae, family, Fry 1978 [Phoxichilidiidae]
  • Antennophorina, Berlese 1882 [Parasitiformes]
  • Anthracomartus radvanicensis (Oplustil 1985) [Anthracomartidae]
  • Antillostenochrus, Armas and Teruel 2002 [Hubbardiidae]
  • Antrodiaetidae, family, Gertsch 1940 [Antrodiaetidae]
  • Anyphaenidae, family, Bertkau 1878 [Anyphaenidae]
  • Anyphaenoides, Berland 1913 [Anyphaenidae]
  • Anystidae, family, Oudemans 1902 [Anystidae]
  • Anystides, Van der Hammen 1972 [Acariformes]
  • Anystina, Van der Hammen 1972 [Acariformes]
  • Anystis, Von Heyden 1826 [Anystidae]
  • Anystoidea, superfamily, Oudemans 1902 [Acariformes]
  • Apostenus, Weetring 1851 [Liocranidae]
  • Arachnopoda, class, Dana 1853 [Pycnogonida]
  • Araneoclada, Platnick 1977 [Araneae]
  • Araneus kinchloeae, Dunlop and Jekel 2009 [Araneidae]
  • Archaea gracilicollis, Millot 1948 [Archaeidae]
  • Argiope, Audouin 1826 [Araneidae]
  • Argyronetinae, subfamily, Menge 1869 [Dictynidae]
  • Ariadna, Audouin 1826 [Segestriidae]
  • Arthromygale, Petrunkevitch 1923 [Arthromygalidae]
  • Arthromygalidae, family, Petrunkevitch 1923 [Arthromygalidae]
  • Astigmata, Canestrini 1891 [Acariformes]
  • Atemnidae, family, Kishida 1929 [Atemnidae]
  • Attidae, family (Koch) [Salticidae]
  • Atypidae, family, Thorell 1870 [Atypidae]
  • Austrodecidae, family, Stock 1954 [Austrodecidae]
  • Auximus, Simon 1892 [unclassified genus]
  • Balaustium, Von Heyden 1826 [Erythraeidae]
  • Barychelidae, family, Simon 1889 [Barychelidae]
  • Bdellodes, Oudemans 1937 [Bdellidae]
  • Bdelloidea, superfamily, Duges 1834 [Acariformes]
  • Beierowithius, Mahnert 1979 [Withiidae]
  • Bellinuridae, family, Zittel and Eastman 1913 [Belinuridae]
  • Bellinurina, suborder, Zittel and Eastman 1913 [Xiphosurida]
  • Bellinurus bellulus (Pictet 1846) [Belinuridae]
  • Benoibates, Balogh 1958 [Oripodidae]
  • Bolostromus, Ausserer 1875 [Cyrtaucheniidae]
  • Borchgrevinkium taimyrensis, Novojilov 1959 [Borchgrevinkium taimyrensis]
  • Bornatarbus, Rossler and Schneider 1997 [Architarbidae]
  • Brachypylina, Hull 1918 [Acariformes]
  • Bunodes lunula, Eichwald 1854 [Bunodes lunula]
  • Bunodes rugosus, Eichwald 1854 [Bunodes lunula]
  • Buthidae, family, Koch 1837 [Buthidae]
  • Buthiscorpius pescei, Vachon and Heyler 1985 [Anthracoscorpionidae]
  • Buthoidea, superfamily, Koch 1837 [Scorpiones]
  • Caddidae, family, Banks 1893 [Caddidae]
  • Caddo, Banks 1892 [Caddidae]
  • Caddoidea, superfamily, Banks 1893 [Opiliones]
  • Callipallenidae, family, Hilton 1942 [Callipallenidae]
  • Camanchia, Moore et al. 2011 [Camanchia]
  • Camanchia grovensis, Moore et al. 2011 [Camanchia grovensis]
  • Cambropycnogon, Waloszek and Dunlop 2002 [Pycnogonida]
  • Cambropycnogon klausmuelleri, Waloszek and Dunlop 2002 [Pycnogonida]
  • Camisia, von Heyden 1826 [Camisiidae]
  • Camisia horrida (Hermann 1804) [Camisiidae]
  • Camisiidae, family, Oudemans 1900 [Camisiidae]
  • Carabodoidea, superfamily, Koch 1843 [Acariformes]
  • Carcinosomatidae, family, Stormer 1934 [Carcinosomatidae]
  • Carcinosomatoidea, superfamily, Stoermer 1934 [Eurypterida]
  • Castianeira, Keyserling 1880 [Corinnidae]
  • Centrurus, Ehrenberg 1829 [Buthidae]
  • Centrurus nitidus, Thorell 1876 [Buthidae]
  • Cepheidae, family, Berlese 1896 [Cepheidae]
  • Cepheoidea, superfamily, Berlese 1896 [Acariformes]
  • Ceratinopsis, Emerton 1882 [Linyphiidae]
  • Ceratozetoidea, superfamily, Jacot 1925 [Acariformes]
  • Ceromidae, family, Roewer 1933 [Ceromidae]
  • Chactas, Gervais 1844 [Chactidae]
  • Chactidae, family, Pocock 1893 [Chactidae]
  • Chactoidea, superfamily, Pocock 1893 [Scorpiones]
  • Chaerilidae, family, Pocock 1893 [Chaerilidae]
  • Cheilapallenidae, family, Fry 1978 [Callipallenidae]
  • Cheliferidae, family, Risso 1826 [Cheliferidae]
  • Cheliferoidea, superfamily, Risso 1826 [Pseudoscorpiones]
  • Chelonethi (Thorell 1883) [Chelonethi]
  • Cheyletidae, family, Leach 1815 [Cheyletidae]
  • Cheyletoidea, superfamily, Leach 1815 [Acariformes]
  • Chrosiothes, Simon 1894 [Theridiidae]
  • Chrysso, Pickard-Cambridge 1882 [Theridiidae]
  • Chthonioidea, superfamily, Daday 1889 [Pseudoscorpiones]
  • Cladonychidae, family, Hadzi 1935 [Cladonychiidae]
  • Clarkeipterus testudineus (Clarke and Ruedemann 1912) [Dolichopteridae]
  • Clavigeropallenidae, family, Fry 1978 [Callipallenidae]
  • Clubionoidea, superfamily, Simon 1895 [Araneae]
  • Cnephalocotes, Simon 1884 [Linyphiidae]
  • Collohmanniidae, family, Grandjean 1958 [Collohmanniidae]
  • Collohmannioidea, superfamily, Grandjean 1958 [Acariformes]
  • Colossendeidae, family, Jarzynsky 1870 [Colossendeidae]
  • Comarominae, subfamily, Wunderlich 2004 [Anapidae]
  • Coriarachne, Thorell 1870 [Thomisidae]
  • Corinna, Koch 1842 [Corinnidae]
  • Corynitoides, Dunlop and Jekel 2009 [Araneae]
  • Coryssocnemis, Simon 1893 [Pholcidae]
  • Corythalia, Koch 1851 [Salticidae]
  • Cosmochthoniidae, family, Grandjean 1947 [Cosmochthoniidae]
  • Craspedisia, Simon 1894 [Theridiidae]
  • Crotonioidea, superfamily, Thorell 1876 [Acariformes]
  • Cryptocheiridium, Chamberlin 1931 [Cheiridiidae]
  • Ctenacaridae, family, Grandjean 1954 [Ctenacaridae]
  • Ctenacaroidea, superfamily, Grandjean 1954 [Acariformes]
  • Ctenidae, family, Keyserling 1877 [Ctenidae]
  • Ctenizidae, family, Thorell 1887 [Ctenizidae]
  • Cyatholipidae, family, Simon 1894 [Cyatholipidae]
  • Cyclophthalmoidea, superfamily, Thorell and Lindstroem 1885 [Scorpiones]
  • Cyrtaucheniidae, family, Simon 1892 [Cyrtaucheniidae]
  • Cyrtognatha, Keyserling 1882 [Tetragnathidae]
  • Daesiidae, family, Kraepelin 1899 [Daesiidae]
  • Damaeoidea, superfamily, Berlese 1896 [Acariformes]
  • Deinopis, MacLeay 1839 [Deinopidae]
  • Dermanyssiae, Evans and Till 1979 [Parasitiformes]
  • Dermanyssoidea, superfamily, Kolenati 1859 [Parasitiformes]
  • Descanso, Peckham and Peckham 1892 [Salticidae]
  • Desidae, family, Pocock 1895 [Desidae]
  • Desmonomata, Woodley 1873 [Acariformes]
  • Dibasterium, Briggs et al. 2012 [Dibasterium]
  • Dibasterium durgae, Briggs et al. 2012 [Dibasterium durgae]
  • Dicranopalpus, Doleschall 1852 [Phalangiidae]
  • Dictyna, Sundevall 1833 [Dictynidae]
  • Dipluridae, family, Simon 1889 [Dipluridae]
  • Dolichopterus laticeps, Schmidt 1883 [Strobilopteridae]
  • Dolomedes, Latreille 1804 [Pisauridae]
  • Donuea, Strand 1932 [Araneae]
  • Drassus cupreus, Blackwall 1834 [Gnaphosidae]
  • Drepanopteridae, family, Kjellesvig-Waering 1966 [Drepanopteridae]
  • Dysderoidea, superfamily, Bristowe 1938 [Araneae]
  • Dyspnoi, suborder, Hansen and Sorensen 1904 [Opiliones]
  • Eidmanella, Roewer 1935 [Nesticidae]
  • Elaver, Pickard-Cambridge 1898 [Clubionidae]
  • Eleutherengonides, Oudemans 1909 [Acariformes]
  • Enarthronota, Grandjean 1947 [Acariformes]
  • Endeidae, family, Norman 1904 [Endeidae]
  • Endeostigmata, infraorder [Acariformes]
  • Entelecara, Simon 1884 [unclassified genus]
  • Entelecara jacksoni, Pickard-Cambridge 1902 [Linyphiidae]
  • Eoattopsis, Gourret 1887 [Salticidae]
  • Eohahnia, Petrunkevitch 1958 [Hahniidae]
  • Eometa, Petrunkevitch 1958 [Eometa]
  • Epeiridae, family () [Araneidae]
  • Ephyrogymnidae, family, Fry 1978 [Ammotheidae]
  • Epicriiae, Vitzthum 1938 [Parasitiformes]
  • Epiochierata, Harvey 1992 [Pseudoscorpiones]
  • Episinus, Latreille 1809 [Theridiidae]
  • Eremaeus oblongus, Koch 1836 [Eremaeidae]
  • Eresoidea, superfamily, Koch 1851 [Araneae]
  • Eriauchenius, Cambridge 1881 [Archaeidae]
  • Erigone, Audouin 1826 [Linyphiidae]
  • Erigone atra, Blackwall 1833 [Linyphiidae]
  • Ero, Koch 1836 [Mimetidae]
  • Erythraeoidea, superfamily, Grandjean 1947 [Acariformes]
  • Erythraeus, Latreille 1806 [Erythraeidae]
  • Erythraiae [Acariformes]
  • Euamblypygi, suborder, Weygoldt 1996 [Amblypygi]
  • Euophrys, Koch 1834 [Salticidae]
  • Eupelops, Ewing 1917 [Phenopelopidae]
  • Euphthiracaroidea, superfamily, Jacot 1930 [Acariformes]
  • Eupodides, Krantz 1978 [Acariformes]
  • Eupodoidea, superfamily, Koch 1842 [Acariformes]
  • Eupyctima, Grandjean 1967 [Acariformes]
  • Eurycididae, family, Sars 1891 [Ammotheidae]
  • Euryopis, Menge 1868 [Theridiidae]
  • Eurypterina, suborder, Burmeister 1843 [Eurypterida]
  • Eurypteroidea, superfamily, Burmeister 1843 [Eurypterida]
  • Eusarcana, Strand 1942 [Carcinosomatidae]
  • Euzetes, Berlese 1908 [Euzetidae]
  • Euzetidae, family, Grandjean 1954 [Euzetidae]
  • Exapinurus schrenki, Nieszkowski 1859 [Bunodes lunula]
  • Eylaoidea, superfamily, Leach 1815 [Acariformes]
  • Faiditus, Keyserling 1884 [Theridiidae]
  • Feaelloidea, superfamily, Ellingsen 1906 [Pseudoscorpiones]
  • Galumnoidea, superfamily, Jacot 1925 [Acariformes]
  • Gamasina, Kramer 1881 [Parasitiformes]
  • Garcorops, Corronca 2003 [Selenopidae]
  • Garnettiidae, family, Dubinin 1962 [Garnettiidae]
  • Garypinidae, family, Daday 1888 [Garypinidae]
  • Garypinus, Daday 1888 [Garypinidae]
  • Garypoidea, superfamily, Simon 1879 [Pseudoscorpiones]
  • Gea, Koch 1843 [Araneidae]
  • Gehypochthoniidae, family, Strenzke 1963 [Gehypochthoniidae]
  • Geogarypidae, family, Chamberlin 1930 [Geogarypidae]
  • Geogarypus, Chamberlin 1930 [Geogarypidae]
  • Gnaphosa, Latreille 1804 [Gnaphosidae]
  • Gnaphosidae, family, Pocock 1898 [Gnaphosidae]
  • Gnaphosoidea, superfamily, Simon 1893 [Araneae]
  • Gonatium, Menge 1868 [Linyphiidae]
  • Gondwanarachne, Pinto and Hunicken 1980 [Kreischeriidae]
  • Graea, Thorell 1869 [Araneidae]
  • Grandoculidae, family, Penney 2011 [Lagonomegopidae]
  • Grassatores, infraorder, Kury 2002 [Opiliones]
  • Gustavioidea, superfamily, Oudemans 1900 [Acariformes]
  • Gymnodamaeidae, family, Grandjean 1954 [Gymnodamaeidae]
  • Gymnodamaeus, Kulczynski 1902 [Gymnodamaeidae]
  • Hahniidae, family, Bertkau 1878 [Hahniidae]
  • Hannonidae, family, Fry 1978 [Callipallenidae]
  • Hardieopteridae, family, Tollerton 1989 [Hardieopteridae]
  • Hardieopterus macrophthalmus (Laurie 1892) [Hardieopteridae]
  • Harpactea, Bristowe 1939 [Dysderidae]
  • Heliophanus, Koch 1833 [Salticidae]
  • Hemictenata, infraorder, Harvey 1992 [Pseudoscorpiones]
  • Hemirraghus, Simon 1903 [Theraphosidae]
  • Hemiscorpiidae, family, Pocock 1893 [Hemiscorpiidae]
  • Hermanniella, Berlese 1908 [Hermanniellidae]
  • Hermanniellidae, family, Grandjean 1934 [Hermanniellidae]
  • Hermannielloidea, superfamily, Grandjean 1934 [Acariformes]
  • Hersilia, Audouin 1826 [Hersiliidae]
  • Hersiliidae, family, Thorell 1870 [Hersiliidae]
  • Heteroonops, Dalmas 1916 [Oonopidae]
  • Heterostigmatina, Berlese 1899 [Acariformes]
  • Heurtaultia, Judson 2009 [Cheliferidae]
  • Hexathelidae, family, Simon 1892 [Hexathelidae]
  • Hexuridae, family, Simon 1889 [Mecicobothriidae]
  • Hibbertopteridae, family, Kjellesvig-Waering 1959 [Hibbertopteridae]
  • Hibbertopteroidea, superfamily, Kjellesvig-Waering 1959 [Eurypterida]
  • Histopona, Thorell 1869 [Agelenidae]
  • Histricostoma, Kratochvil 1958 [Nemastomatidae]
  • Homalometa, Simon 1897 [Tetragnathidae]
  • Hummelinckiolus, Silhavy 1979 [Samoidae]
  • Huttoniidae, family, Simon 1893 [Huttoniidae]
  • Hydracarnidiae, Van der Hoeven 1849 [Acariformes]
  • Hydrozetoidea, superfamily, Grandjean 1954 [Acariformes]
  • Hyllus, Koch 1846 [Salticidae]
  • Hypochthoniidae, family, Berlese 1910 [Hypochthoniidae]
  • Hypochthonioidea, superfamily, Berlese 1910 [Acariformes]
  • Hypognatha, Guerin 1839 [Araneidae]
  • Hypselistes, Simon 1894 [Linyphiidae]
  • Hyptiotes, Walckanaer 1837 [Uloboridae]
  • Idiogaryops, Hoff 1963 [Sternophoridae]
  • Inceptor, Petrunkevitch 1942 [Agelenidae]
  • Insidiatores, infraorder, Loman 1900 [Opiliones]
  • Iocheirata, suborder, Harvey 1992 [Pseudoscorpiones]
  • Ischnothele, Ausserer 1875 [Dipluridae]
  • Ischyropsalidoidea, superfamily, Simon 1879 [Opiliones]
  • Ixodida, order, W. E. Leach 1815 [Parasitiformes]
  • Ixodidae, family, Banks 1907 [Ixodidae]
  • Ixodoidea, superfamily, Banks 1907 [Parasitiformes]
  • Kiaeria, Stoermer 1934 [Chasmataspidida]
  • Kimula, Goodnight and Goodnight 1942 [Kimulidae]
  • Kimulidae, family, Perez Gonzalez et al. 2007 [Kimulidae]
  • Kokomopteroidea, superfamily, Kjellesvig-Waering 1966 [Eurypterida]
  • Labidostomma, Kramer 1879 [Labidostommatidae]
  • Labidostommatidae, family, Oudemans 1906 [Labidostommatidae]
  • Labidostommatides, Lindquist et al. 2009 [Acariformes]
  • Labidostommatoidea, superfamily, Oudemans 1906 [Acariformes]
  • Laelapidae, family, Berlese 1892 [Laelapidae]
  • Laniatores, suborder, Thorell 1876 [Opiliones]
  • Lasaeola, Simon 1881 [Theridiidae]
  • Lechytiidae, family, Chamberlin 1929 [Chthoniidae]
  • Leclercera, Deeleman-Reinhold 1995 [Psilodercidae]
  • Legrandella lombardii, Eldredge 1974 [Legrandella lombardii]
  • Leiobunum, Koch 1839 [Sclerosomatidae]
  • Leptonetidae, family, Simon 1890 [Leptonetidae]
  • Leptopholcus, Simon 1893 [Pholcidae]
  • Leptus, Latreille 1796 [Erythraeidae]
  • Liacaridae, family, Sellnick 1928 [Liacaridae]
  • Limnocharidae, family, Grube 1859 [Limnocharidae]
  • Limuloides optatus, Salter 1872 [Bunodidae]
  • Limuloides speratus, Woodward 1872 [Bunodidae]
  • Limuloides tuberculatus, Salter 1872 [Bunodidae]
  • Liocranidae, family, Simon 1897 [Liocranidae]
  • Loxosceles, Heineken and Lowe 1832 [Sicariidae]
  • Loxoscelidae, family, Simon 1893 [Sicariidae]
  • Lupettiana, Brescovit 1997 [Anyphaenidae]
  • Masteria, Koch 1873 [Dipluridae]
  • Mecicobothriidae, family, Holmberg 1882 [Mecicobothriidae]
  • Mecysmaucheniidae, family, Simon 1895 [Mecysmaucheniidae]
  • Megalostrata, Karach 1880 [Corinnidae]
  • Menneus, Simon 1876 [Deinopidae]
  • Mesophonidae, family, Wills 1910 [Mesophonidae]
  • Mesophonoidea, superfamily, Wills 1910 [Scorpiones]
  • Mesostigmata, suborder, Canestrini 1891 [Parasitiformes]
  • Meta, Koch 1836 [Tetragnathidae]
  • Metapallenidae, family, Fry 1978 [Callipallenidae]
  • Metatetranychus, Oudemans 1931 [Tetranychidae]
  • Microcharmidae, family, Lourenco 1996 [Buthidae]
  • Microcharmus, Lourenco 1995 [Buthidae]
  • Micropholcommatidae, family, Hickman 1944 [Anapidae]
  • Microstigmatidae, family, Roewer 1942 [Microstigmatidae]
  • Microtityus, Kjellesvig-Waering 1966 [Buthidae]
  • Micryphantes, Koch 1833 [Linyphiidae]
  • Mimetidae, family, Simon 1881 [Mimetidae]
  • Mimetus, Hentz 1832 [Mimetidae]
  • Misumena, Latreille 1804 [Thomisidae]
  • Mitostoma, Roewer 1951 [Nemastomatidae]
  • Miturgidae, family, Simon 1885 [Miturgidae]
  • Mixonomata, Grandjean 1969 [Acariformes]
  • Mixopteroidea, superfamily, Caster and Kjellesvig-Waering 1955 [Eurypterida]
  • Mochloribatula, Mahunka 1978 [Mochlozetidae]
  • Mochlozetidae, family, Grandjean 1960 [Mochlozetidae]
  • Modisimus, Simon 1893 [Pholcidae]
  • Molinaranea, Mello-Leitao 1940 [Araneidae]
  • Monoblemma, Gertsch 1941 [Tetrablemmidae]
  • Moselopteridae, family, Lamsdell et al. 2010 [Moselopteridae]
  • Moselopteroidea, superfamily, Lamsdell et al. 2010 [Eurypterida]
  • Mycobatidae, family, Grandjean 1954 [Mycobatidae]
  • Myrmarachne, MacLeay 1839 [Salticidae]
  • Myro, Pickard-Cambridge 1876 [Toxopidae]
  • Mysmena, Simon 1894 [Mysmenidae]
  • Mysmenidae, family, Petrunkevitch 1928 [Mysmenidae]
  • Mysmenopsis, Simon 1897 [Mysmenidae]
  • Nanorchestidae, family, Grandjean 1937 [Nanorchestidae]
  • Nemastomatidae, family, Simon 1879 [Nemastomatidae]
  • Nemesiidae, family, Simon 1892 [Nemesiidae]
  • Neoamblypygi, infraorder, Weygoldt 1996 [Amblypygi]
  • Neobisioidea, superfamily, Chamberlin 1930 [Pseudoscorpiones]
  • Neoliodes, Berlese 1888 [Neoliodidae]
  • Neoliodidae, family, Sellnick 1928 [Neoliodidae]
  • Neoliodoidea, superfamily, Sellnick 1928 [Acariformes]
  • Neon, Simon 1876 [Salticidae]
  • Neriene, Blackwall 1833 [unclassified genus]
  • Neriene rubens, Blackwall 1833 [Linyphiidae]
  • Nesticidae, family, Simon 1894 [Nesticidae]
  • Nicoletiella, Canestrini 1882 [Labidostommatidae]
  • Notaspis, Hermann 1804 [Arachnida]
  • Notaspis bipilis, Hermann 1804 [Peloppiidae]
  • Nothridae, family, Berlese 1896 [Nothridae]
  • Nothrina, van der Hammen 1982 [Acariformes]
  • Nothrus, Koch 1836 [Nothridae]
  • Nymphonidae, family, Wilson 1878 [Nymphonidae]
  • Ochyroceratidae, family, Fage 1912 [Ochyroceratidae]
  • Ommatocepheus, Berlese 1913 [Cepheidae]
  • Onychopterellidae, family, Lamsdell 2011 [Onychopterellidae]
  • Onychopterelloidea, superfamily, Lamsdell 2011 [Eurypterida]
  • Oorhynchidae, family, Schimkewitsch 1913 [Ammotheidae]
  • Opilioacarida, suborder (Zachvatkin 1952) [Parasitiformes]
  • Opilioacaroidea, superfamily, Vitzthum 1931 [Parasitiformes]
  • Opopaea, Simon 1891 [Oonopidae]
  • Oppioidea, superfamily, Grandjean 1951 [Acariformes]
  • Oribatelloidea, superfamily, Jacot 1925 [Acariformes]
  • Oribotritia, Jacot 1924 [Oribotritiidae]
  • Oribotritiidae, family, Grandjean 1954 [Oribotritiidae]
  • Oripodoidea, superfamily, Jacot 1925 [Acariformes]
  • Otiothops, MacLeay 1839 [Palpimanidae]
  • Otocepheidae, family, Balogh 1961 [Otocepheidae]
  • Oxyopes, Latreille 1804 [Oxyopidae]
  • Oxyopidae, family, Thorell 1870 [Oxyopidae]
  • Pacullidae, family, Simon 1894 [Pacullidae]
  • Palaeoisopodidae, family, Dubinin 1957 [Palaeoisopodidae]
  • Palaeomarachne, Rudkin et al. 2013 [Pycnogonida]
  • Palaeomarachne granulata, Rudkin et al. 2013 [Pycnogonida]
  • Palaeophonoidea, superfamily, Thorell and Lindstroem 1884 [Scorpiones]
  • Palaeoscorpiidae, family, Lehmann 1944 [Palaeoscorpiidae]
  • Palaeoscorpioidea, superfamily, Lehmann 1944 [Scorpiones]
  • Palaeoscorpionidae, family (Lehmann 1944) [Palaeoscorpionidae]
  • Palaeoscorpoidea, superfamily (Lehmann 1944) [Scorpiones]
  • Palaeosomata, Grandjean 1969 [Acariformes]
  • Palaeothea devonica, Bergstroem et al. 1980 [Pycnogonida]
  • Paleoamblypygi, suborder, Weygoldt 1996 [Amblypygi]
  • Pallenidae, family, Wilson 1878 [Callipallenidae]
  • Pallenopsidae, family, Fry 1978 [Pallenopsidae]
  • Palpigradi, order, Thorell 1888 [Palpigradi]
  • Palpimanidae, family, Thorell 1870 [Palpimanidae]
  • Panctenata, infraorder, Harvey 1992 [Pseudoscorpiones]
  • Paracarus, Chamberlin and Mulaik 1942 [Opilioacaridae]
  • Paracharontidae, family, Weygoldt 1996 [Paracharontidae]
  • Paralycosa, Dunlop and Jekel 2009 [Araneae]
  • Paramegistidae, family, Tragardh 1946 [Paramegistidae]
  • Paramegistoidea, superfamily, Tragardh 1946 [Parasitiformes]
  • Paranymphonidae, family, Fry 1978 [Ammotheidae]
  • Parapimodus, Balogh and Mahunka 1968 [Oripodidae]
  • Parasitengona, Oudemans 1909 [Acariformes]
  • Parasitiae, Reuter 1909 [Parasitiformes]
  • Parasitiformes, superorder, Reuter 1909 [Parasitiformes]
  • Parasitoidea, superfamily, Oudemans 1901 [Parasitiformes]
  • Parastylonuridae, family, Waterston 1979 [Parastylonuridae]
  • Parastylonurus ornatus (Laurie 1892) [Parastylonuridae]
  • Paratemnoides, Harvey 1991 [Atemnidae]
  • Pardosa, Koch 1847 [Lycosidae]
  • Parhypochthonioidea, superfamily, Grandjean 1932 [Acariformes]
  • Parhyposomata, Grandjean 1969 [Acariformes]
  • Pasithoidae, family, Sars 1891 [Colossendeidae]
  • Peloppiidae, family, Balogh 1943 [Peloppiidae]
  • Pentapalaeopycnon inconspicua, Hedgpeth 1978 [Pentapalaeopycnon inconspicua]
  • Penthalodes, Murray 1877 [Penthalodidae]
  • Penthalodidae, family, Thor 1933 [Penthalodidae]
  • Petrunkevitchiana, Mello-Leitao 1937 [Opiliones]
  • Phenopelopidae, family, Petrunkevitch 1955 [Phenopelopidae]
  • Phenopelopoidea, superfamily, Petrunkevitch 1955 [Acariformes]
  • Phidippus, Koch 1846 [Salticidae]
  • Philacarus, Sorensen 1932 [Opiliones]
  • Philodromidae, family, Thorell 1870 [Philodromidae]
  • Pholcidae, family, Koch 1851 [Pholcidae]
  • Pholcophora, Banks 1896 [Pholcidae]
  • Phoroncidia, Westwood 1835 [Theridiidae]
  • Phoxichilidiidae, family, Sars 1891 [Phoxichilidiidae]
  • Phoxiphilyridae, family, Fry 1978 [Phoxichilidiidae]
  • Phrurolithus, Koch 1839 [Phrurolithidae]
  • Phrynidae, family, Blanchard 1852 [Phrynidae]
  • Phrynoidea, superfamily, Blanchard 1852 [Amblypygi]
  • Phrynus fossilis, Keferstein 1834 [Amblypygi]
  • Phthiracaridae, family, Perty 1841 [Phthiracaridae]
  • Phthiracaroidea, superfamily, Perty 1841 [Acariformes]
  • Phthiracarus, Perty 1841 [Phthiracaridae]
  • Pimoa, Chamberlin and Ivie 1943 [Pimoidae]
  • Pimoidae, family, Wunderlich 1986 [Pimoidae]
  • Pirata, Sundevall 1833 [Lycosidae]
  • Plateremaeoidea, superfamily, Tragardh 1926 [Acariformes]
  • Platnickina, Kocak and Kemal 2008 [Theridiidae]
  • Platyliodes, Berlese 1917 [Neoliodidae]
  • Plectreurys, Simon 1893 [Plectreuridae]
  • Pocadicnemis, Simon 1884 [Linyphiidae]
  • Polystomurum, Novojilov 1958 [Polystomurum]
  • Polystomurum stormeri, Novojilov 1958 [Polystomurum stormeri]
  • Prodidomidae, family, Simon 1884 [Prodidomidae]
  • Prodidomus, Hentz 1847 [Prodidomidae]
  • Proscorpiidae, family (Scudder 1885) [Proscorpiidae]
  • Proscorpionidae, family, Scudder 1885 [Proscorpionidae]
  • Prostigmata, infraorder () [Acariformes]
  • Prothoplophoridae, family, Ewing 1917 [Prothoplophoridae]
  • Prothoplophoroidea, superfamily, Ewing 1917 [Acariformes]
  • Psalistops, Simon 1889 [Barychelidae]
  • Pseudochiridiidae, family, Chamberlin 1923 [Pseudochiridiidae]
  • Pseudochiridium, With 1906 [Pseudochiridiidae]
  • Pseudoeophrynus, Pribyl 1958 [Eophrynidae]
  • Pseudogarypidae, family, Chamberlin 1923 [Pseudogarypidae]
  • Pseudogarypus, Ellingsen 1909 [Pseudogarypidae]
  • Psiloderces, Simon 1892 [Psilodercidae]
  • Punctoribates, Berlese 1908 [Mycobatidae]
  • Pycnogonidae, family, Wilson 1878 [Pycnogonidae]
  • Pycnogonites, Quenstedt 1852 [Pycnogonites]
  • Pycnogonites uncinatus, Quenstedt 1852 [Pycnogonites uncinatus]
  • Pycnothelidae, family, Chamberlin 1917 [Nemesiidae]
  • Pyemotidae, family, Oudemans 1937 [Pyemotidae]
  • Pyemotoidea, superfamily, Oudemans 1937 [Acariformes]
  • Quamtana, Huber 2003 [Pholcidae]
  • Queubidae, family, Fry 1978 [Callipallenidae]
  • Raphignathina, Kethley 1982 [Acariformes]
  • Raphignathoidea, superfamily, Kramer 1877 [Acariformes]
  • Resinacaridae, family, Mahunka 1975 [Resinacaridae]
  • Rhagidiidae, family, Oudemans 1922 [Rhagidiidae]
  • Rhopalorhynchidae, family, Fry 1978 [Colossendeidae]
  • Rhynchothoracidae, family, Thompson 1909 [Rhynchothoracidae]
  • Roncus, Koch 1873 [Neobisiidae]
  • Rowlandius, Reddell and Cockendolpher 1995 [Hubbardiidae]
  • Sabacon, Simon 1879 [Sabaconidae]
  • Sabaconidae, family, Dresco 1970 [Sabaconidae]
  • Salticus, Latreille 1804 [unclassified genus]
  • Salticus reticulatus, Blackwall 1853 [Salticidae]
  • Samoidae, family, Sorensen 1886 [Samoidae]
  • Samoidea, superfamily, Sorensen 1886 [Opiliones]
  • Sanctacaris uncata, Briggs and Collins 1988 [Sanctacaris uncata]
  • Sarcoptiformes, suborder, Reuter 1909 [Acariformes]
  • Sarinda, Peckham and Peckham 1892 [Salticidae]
  • Savignia, Blackwall 1833 [Linyphiidae]
  • Savignia frontata, Blackwall 1833 [Linyphiidae]
  • Scheloribates, Berlese 1908 [Scheloribatidae]
  • Scheloribatidae, family, Grandjean 1933 [Scheloribatidae]
  • Schizotetranychus, Tragardh 1915 [Tetranychidae]
  • Scopoides, Platnick 1989 [Gnaphosidae]
  • Scytodes, Latreille 1804 [Scytodidae]
  • Scytodidae, family, Blackwall 1864 [Scytodidae]
  • Sejida, infraorder, Kramer 1885 [Parasitiformes]
  • Sejidae, family, Berlese 1885 [Sejidae]
  • Sejoidea, superfamily, Berlese 1885 [Parasitiformes]
  • Selenyphantes, Gertsch and Davis 1946 [Linyphiidae]
  • Sericosuridae, family, Fry 1978 [Ammotheidae]
  • Sicariidae, family, Keyserling 1880 [Sicariidae]
  • Slimonidae, family, Novojilov 1968 [Slimonidae]
  • Solifugae, order, Sundevall 1833 [Solifugae]
  • Sorellophrynus, Harvey 2002 [Amblypygi]
  • Sphaerozetes, Berlese 1885 [Ceratozetidae]
  • Spongiophonus, Wills 1947 [Spongiophonidae]
  • Steatoda, Sundevall 1833 [Theridiidae]
  • Stemmops, Pickard-Cambridge 1894 [Theridiidae]
  • Steneattus, Bronn 1856 [Salticidae]
  • Stenoonops, Simon 1891 [Oonopidae]
  • Sternophoridae, family, Chamberlin 1923 [Sternophoridae]
  • Sternophoroidea, superfamily, Chamberlin 1923 [Pseudoscorpiones]
  • Stigmaeidae, family, Oudemans 1931 [Stigmaeidae]
  • Strotarchus, Simon 1888 [Cheiracanthiidae]
  • Stylocellidae, family, Hansen and Sorensen 1904 [Stylocellidae]
  • Stylonurina, suborder, Diener 1924 [Eurypterida]
  • Stylonuroidea, superfamily, Diener 1924 [Eurypterida]
  • Stylonurus conicus, Laurie 1892 [Moselopteridae]
  • Stylopallenidae, family, Fry 1978 [Callipallenidae]
  • Succinomidae, family, Wunderlich 2012 [Succinomidae]
  • Synaphridae, family, Wunderlich 1986 [Synaphridae]
  • Synema, Simon 1864 [Thomisidae]
  • Synotaxidae, family, Simon 1894 [Synotaxidae]
  • Tanaupodoidea, superfamily, Thor 1935 [Acariformes]
  • Tegenaria, Latreille 1804 [Agelenidae]
  • Telema, Simon 1882 [Telemidae]
  • Telemidae, family, Fage 1913 [Telemidae]
  • Testudinaroides, Dunlop and Jekel 2008 [Araneidae]
  • Tethneus hentzi (Scudder 1885) [Araneidae]
  • Tetrablemmidae, family, Cambridge 1873 [Tetrablemmidae]
  • Tetranychidae, family, Donnadieu 1876 [Tetranychidae]
  • Tetranychoidea, superfamily, Donnadieu 1876 [Acariformes]
  • Thallumetus, Simon 1892 [Dictynidae]
  • Thelyphonidae, family, Lucas 1835 [Thelyphonidae]
  • Theraphosidae, family, Thorell 1870 [Theraphosidae]
  • Theridiosoma, Pickard-Cambridge 1879 [Theridiosomatidae]
  • Theridiosomatidae, family, Simon 1881 [Theridiosomatidae]
  • Thiodina, Simon 1900 [Salticidae]
  • Thurandina waterstoni, Stoermer 1974 [Thurandina waterstoni]
  • Timeropus, Thorell 1891 [Araneae]
  • Titanoecidae, family, Lehtinen 1967 [Titanoecidae]
  • Toschia, Caporiacco 1949 [Linyphiidae]
  • Trachychelifer, Hong 1983 [Cheliferidae]
  • Travunioidea, superfamily, Absolon and Kratochvil 1932 [Opiliones]
  • Trechaleidae, family, Simon 1890 [Trechaleidae]
  • Trhypochthoniidae, family, Willmann 1931 [Trhypochthoniidae]
  • Trhypochthonius, Berlese 1904 [Trhypochthoniidae]
  • Tridenchthoniidae, family, Balzan 1892 [Chthoniidae]
  • Trigynaspida, infraorder, Camin and Gorirossi 1955 [Parasitiformes]
  • Trochanteriidae, family, Karsch 1897 [Trochanteriidae]
  • Trochosa, Koch 1847 [Lycosidae]
  • Trochosa terricola, Thorell 1856 [Lycosidae]
  • Troguloidea, superfamily, Sundevall 1833 [Opiliones]
  • Trombidiae [Acariformes]
  • Trombidiformes, suborder, Reuter 1909 [Acariformes]
  • Trombidioidea, superfamily, Leach 1815 [Acariformes]
  • Trygaeidae, family, Fry 1978 [Ammotheidae]
  • Tydeidae, family, Kramer 1877 [Tydeidae]
  • Tydeoidea, superfamily, Kramer 1877 [Acariformes]
  • Ulesanis, Koch 1872 [Theridiidae]
  • Ummidia, Thorell 1875 [Halonoproctidae]
  • Unduloribatidae, family, Kunst 1971 [Unduloribatidae]
  • Uroctea, Dufour 1820 [Oecobiidae]
  • Uropodiae, Kramer 1881 [Parasitiformes]
  • Uropygi, order, Thorell 1882 [Uropygi]
  • Venustulus, Moore 2005 [Venustulus]
  • Venustulus waukeshaensis, Moore 2005 [Venustulus waukeshaensis]
  • Viocurus, Petrunkevitch 1958 [Synotaxidae]
  • Walckenaeria, Blackwall 1833 [unclassified genus]
  • Walckenaeria obscura, Blackwall 1834 [Linyphiidae]
  • Walckenaeria pumila, Blackwall 1841 [Linyphiidae]
  • Weinbergina opitzi, Richter and Richter 1929 [Weinberginidae]
  • Withiidae, family, Chamberlin 1931 [Withiidae]
  • Withius, Kew 1911 [Withiidae]
  • Wulfila, Pickard-Cambridge 1895 [Anyphaenidae]
  • Xenillus, Robineau-Desvoidy 1839 [Liacaridae]
  • Zachria, Koch 1875 [Sparassidae]
  • Zelotes, Giebel 1848 [Gnaphosidae]
  • Zerconidae, family, Berlese 1892 [Zerconidae]
  • Zerconoidea, superfamily, Berlese 1892 [Parasitiformes]
  • Zetorchestoidea, superfamily, Michael 1898 [Acariformes]
  • Zilla, Koch 1834 [Araneidae]
  • Zodariidae, family, Thorell 1881 [Zodariidae]
  • Zoridae, family, Pickard-Cambridge 1893 [Miturgidae]
  • Zoropsidae, family, Bertkau 1882 [Zoropsidae]