| Aphileta microtarsa James Henry ..., 1882 | |
| Aphileta misera Octavius Pic..., 1882 | Heterotardigrades |
| Baryphyma gowerense George Hazel..., 1965 | |
| Baryphyma groenlandicum Holm, 1967 | |
| Baryphyma kulczynskii (Eskov, 1979) | ⇒ Praestigia kulczynskii Eskov, 1979 |
| Baryphyma longitarsum (Emerton, 1882) | ⇒ Micrargus longitarsus James Henry ..., 1882 |
| Baryphyma trifrons Octavius Pic..., 1863 | |
| Baryphyma trifrons affine (Schenkel, 1930) | ⇒ Baryphyma trifrons Octavius Pic..., 1863 |
| Ceraticelus agathus Ralph Vary C..., 1949 | |
| Ceraticelus albus Irving Fox, 1891 | |
| Ceraticelus alticeps Irving Fox, 1891 | |
| Ceraticelus artemisiae Prentice & R..., 2009 | |
| Ceraticelus atriceps Octavius Pic..., 1874 | |
| Ceraticelus berthoudi Charles Dent..., 1958 | |
| Ceraticelus bryantae Kaston, 1945 | Ferris' sandwort |
| Ceraticelus bulbosus James Henry ..., 1882 | |
| Ceraticelus carinatus James Henry ..., 1911 | |
| Ceraticelus crassiceps Ralph Vary C..., 1939 | |
| Ceraticelus creolus Ralph Vary C..., 1925 | |
| Ceraticelus emertoni Octavius Pic..., 1874 | |
| Ceraticelus fastidiosus Crosby & Bishop, 1925 | |
| Ceraticelus fissiceps Octavius Pic..., 1874 | |
| Ceraticelus furculifer | |
| Ceraticelus innominabilis Crosby, 1905 | |
| Ceraticelus laetabilis Octavius Pic..., 1874 | |
| Ceraticelus laetabilis pisga Chamberlin, 1949 | |
| Ceraticelus laetus Octavius Pic..., 1874 | |
| Ceraticelus laticeps James Henry ..., 1894 | |
| Ceraticelus laticeps bucephalus Chamberlin &..., 1944 | |
| Ceraticelus limnologicus Crosby & Bishop, 1925 | |
| Ceraticelus micropalpis James Henry ..., 1882 | |
| Ceraticelus minutus James Henry ..., 1882 | |
| Ceraticelus nigripes Elizabeth Ba..., 1940 | |
| Ceraticelus paludigena Crosby & Bishop, 1925 | |
| Ceraticelus paludigenus Crosby & Bishop, 1925 | |
| Ceraticelus paschalis Crosby & Bishop, 1925 | |
| Ceraticelus phylax Wilton Ivie ..., 1935 | |
| Ceraticelus pygmaeus James Henry ..., 1882 | |
| Ceraticelus rowensis Levi & Herbe..., 1955 | |
| Ceraticelus savannus Ralph Vary C..., 1944 | |
| Ceraticelus silus Charles Dent..., 1958 | |
| Ceraticelus similis Richard C. B..., 1892 | |
| Ceraticelus solitarius (Bryant, 1948) | ⇒ Ceraticelus paludigenus Crosby & Bishop, 1925 |
| Ceraticelus subniger Ralph Vary C..., 1949 | |
| Ceraticelus tibialis Irving Fox, 1891 | |
| Ceraticelus tumidus Elizabeth Ba..., 1940 | |
| Ceraticelus vesperus (Ralph Vary C..., 1939) | ⇒ Ceraticelus fissiceps Octavius Pic..., 1874 |
| Ceratinella acerea Ralph Vary C..., 1933 | Florida carpenter ant |
| Ceratinella alaskae Ralph Vary C..., 1947 | |
| Ceratinella alaskana Chamberlin, 1949 | |
| Ceratinella brevis Wider, 1834 | |
| Ceratinella brunnea James Henry ..., 1882 | |
| Ceratinella buna Ralph Vary C..., 1949 | |
| Ceratinella diversa Ralph Vary C..., 1949 | |
| Ceratinella hemetha Ralph Vary C..., 1949 | |
| Ceratinella holocerea Ralph Vary C..., 1949 | |
| Ceratinella kenaba Ralph Vary C..., 1949 | |
| Ceratinella melanocnemis | |
| Ceratinella occidentalis Banks, 1901 | |
| Ceratinella ornatula Crosby & Bishop, 1925 | |
| Ceratinella ornatula alaskana Chamberlin, 1948 | |
| Ceratinella parvula Irving Fox, 1891 | |
| Ceratinella playa Cokendolpher..., 2007 | |
| Ceratinella sibirica Embrik Strand, 1903 | |
| Ceratinella tigana Ralph Vary C..., 1949 | |
| Ceratinella tosior Ralph Vary C..., 1949 | |
| Ceratinops annulipes Richard C. B..., 1892 | |
| Ceratinops carolinus Richard C. B..., 1911 | |
| Ceratinops crenatus James Henry ..., 1882 | |
| Ceratinops inflatus James Henry ..., 1923 | |
| Ceratinops latus James Henry ..., 1882 | |
| Ceratinops littoralis James Henry ..., 1913 | |
| Ceratinops obscurus Ralph Vary C..., 1939 | |
| Ceratinops rugosus James Henry ..., 1909 | |
| Ceratinops sylvaticus James Henry ..., 1913 | |
| Ceratinops uintanus Ralph Vary C..., 1949 | |
| Ceratinopsidis formosa Richard C. B..., 1892 | |
| Ceratinopsis atolma Ralph Vary C..., 1925 | |
| Ceratinopsis auriculata James Henry ..., 1909 | Largeleaf sphagnum |
| Ceratinopsis bicolor Richard C. B..., 1896 | |
| Ceratinopsis bona Ralph Vary C..., 1944 | |
| Ceratinopsis crosbyi Ralph Vary C..., 1949 | |
| Ceratinopsis delicata Ralph Vary C..., 1939 | |
| Ceratinopsis disparata Charles Dent..., 1959 | |
| Ceratinopsis georgiana Ralph Vary C..., 1944 | |
| Ceratinopsis gosibia Ralph Vary C..., 1949 | |
| Ceratinopsis guerrerensis Willis J. Ge..., 1937 | |
| Ceratinopsis interpres O. P.-Cambridge, 1874 | |
| Ceratinopsis interventa Ralph Vary C..., 1949 | |
| Ceratinopsis jelskii Keyserling, 1886 | |
| Ceratinopsis labradorensis James Henry ..., 1925 | |
| Ceratinopsis laticeps James Henry ..., 1882 | |
| Ceratinopsis munda Octavius Pic..., 1896 | Sheet-web spiders |
| Ceratinopsis nigriceps James Henry ..., 1882 | |
| Ceratinopsis nigripalpis James Henry ..., 1882 | |
| Ceratinopsis oregonicola Ralph Vary C..., 1949 | |
| Ceratinopsis palomara Ralph Vary C..., 1949 | |
| Ceratinopsis rosea Richard C. B..., 1898 | |
| Ceratinopsis ruberrima Pelegrin Fra..., 1926 | |
| Ceratinopsis secuta Ralph Vary C..., 1949 | |
| Ceratinopsis stativa (— Wunderli..., 1970) | ⇒ Styloctetor stativus Simon, 1881 |
| Ceratinopsis sutoris Bishop & Crosby, 1930 | Black cockroach wasp |
| Ceratinopsis swanea Ralph Vary C..., 1944 | |
| Ceratinopsis sylvania Ralph Vary C..., 1944 | |
| Ceratinopsis tarsalis Emerton, 1924 | |
| Ceratinopsis watsinga Ralph Vary C..., 1949 | |
| Ceratinopsis xanthippe Eugen von Ke..., 1886 | |
| Ceratinopsis yola Ralph Vary C..., 1939 | |
| Collinsia borea Ludwig Carl ..., 1879 | |
| Collinsia caliginosa Ludwig Carl ..., 1879 | |
| Collinsia clypiella Ralph Vary C..., 1920 | |
| Collinsia dentata Kirill Yurye..., 1990 | |
| Collinsia holmgreni Tord Tamerla..., 1871 | |
| Collinsia ksenia Crosby & Bishop, 1928 | |
| Collinsia oatimpa Ralph Vary C..., 1949 | Thin-ribbed mountainsnail |
| Collinsia oxypaederotipus Crosby, 1905 | |
| Collinsia palmeni Hackman, 1954 | |
| Collinsia perplexa Eugen von Ke..., 1886 | |
| Collinsia pertinens Octavius Pic..., 1875 | |
| Collinsia plumosa James Henry ..., 1882 | |
| Collinsia probata Octavius Pic..., 1874 | |
| Collinsia spetsbergensis Tord Tamerla..., 1871 | |
| Collinsia stylifera Ralph Vary C..., 1949 | Thin-ribbed mountainsnail |
| Collinsia thulensis Jackson, 1934 | |
| Coreorgonal bicornis James Henry ..., 1923 | |
| Coreorgonal monoceros Eugen von Ke..., 1884 | |
| Coreorgonal petulcus Millidge, 1981 | |
| Dicymbium elongatum James Henry ..., 1882 | |
| Dicymbium libidinosum Kulczyński, 1926 | |
| Dicymbium nigrum John Blackwall, 1834 | |
| Dicymbium pectinatum | |
| Diplocentria bidentata James Henry ..., 1882 | |
| Diplocentria hiberna Barrows, 1945 | |
| Diplocentria perplexa Ralph Vary C..., 1939 | |
| Diplocentria rectangulata James Henry ..., 1915 | |
| Diplocentria retinax Crosby & Bishop, 1936 | |
| Disembolus alpha Ralph Vary C..., 1949 | Thin-ribbed mountainsnail |
| Disembolus amoenus Millidge, 1981 | |
| Disembolus anguineus Millidge, 1981 | |
| Disembolus bairdi Edwards, 1999 | |
| Disembolus beta Millidge, 1981 | |
| Disembolus concinnus Millidge, 1981 | |
| Disembolus convolutus Millidge, 1981 | |
| Disembolus corneliae Ralph Vary C..., 1944 | |
| Disembolus galeatus Millidge, 1981 | |
| Disembolus hyalinus Millidge, 1981 | |
| Disembolus implexus Millidge, 1981 | |
| Disembolus implicatus Millidge, 1981 | |
| Disembolus kesimbus Ralph Vary C..., 1949 | Thin-ribbed mountainsnail |
| Disembolus lacteus Millidge, 1981 | |
| Disembolus lacunatus Millidge, 1981 | |
| Disembolus phanus Ralph Vary C..., 1949 | Thin-ribbed mountainsnail |
| Disembolus procerus Millidge, 1981 | |
| Disembolus sacerdotalis Crosby & Bishop, 1933 | |
| Disembolus sinuosus Millidge, 1981 | |
| Disembolus solanus Millidge, 1981 | |
| Disembolus stridulans Ralph Vary C..., 1933 | Florida carpenter ant |
| Disembolus torquatus Millidge, 1981 | |
| Disembolus vicinus Millidge, 1981 | |
| Disembolus zygethus Ralph Vary C..., 1949 | |
| Dismodicus alticeps Ralph Vary C..., 1947 | |
| Dismodicus bifrons John Blackwall, 1841 | |
| Dismodicus decemoculatus James Henry ..., 1882 | |
| Dismodicus modicus Ralph Vary C..., 1947 | |
| Entelecara acuminata Wider, 1834 | |
| Entelecara erythropus Johan Peter ..., 1851 | |
| Entelecara media (Wladislaus K..., 1887) | ⇒ Entelecara sombra Ralph Vary C..., 1947 |
| Entelecara sombra Ralph Vary C..., 1947 | |
| Eridantes diodontos Prentice & R..., 2013 | |
| Eridantes erigonoides James Henry ..., 1882 | |
| Eridantes utibilis Crosby & Bishop, 1933 | |
| Erigone albescens Richard C. B..., 1898 | |
| Erigone aletris Crosby & Bishop, 1928 | |
| Erigone allani Ralph Vary C..., 1947 | |
| Erigone alsaida Crosby & Bishop, 1928 | |
| Erigone angela Ralph Vary C..., 1939 | |
| Erigone antarctica Eugène Simon, 1884 | White meadowbeauty |
| Erigone antegona Arthur Merto..., 1970 | Sheet-web spiders |
| Erigone aptuna Arthur Merto..., 1970 | Sheet-web spiders |
| Erigone arctica (White, 1852) | ⇒ Erigone dentigera Octavius Pic..., 1874 |
| Erigone arctica soerenseni Holm, 1956 | |
| Erigone arcticola Ralph Vary C..., 1947 | |
| Erigone arctophylacis Crosby & Bishop, 1928 | |
| Erigone aspura Ralph Vary C..., 1939 | |
| Erigone autumnalis James Henry ..., 1882 | Dwarf weaver |
| Erigone barrowsi Crosby & Bishop, 1928 | |
| Erigone benes Ralph Vary C..., 1939 | |
| Erigone bereta Arthur Merto..., 1970 | Sheet-web spiders |
| Erigone bifurca George Hazel..., 1982 | Aerial yellowjacket |
| Erigone blaesa Crosby & Bishop, 1928 | |
| Erigone canthognatha Ralph Vary C..., 1935 | |
| Erigone capra (Simon, 1926) | ⇒ Erigone dentigera Octavius Pic..., 1874 |
| Erigone clavipalpis Alfred Frank..., 1991 | |
| Erigone coloradensis Eugen von Ke..., 1886 | |
| Erigone cristatopalpus Eugène Simon, 1884 | White meadowbeauty |
| Erigone crosbyi Ehrenfried S..., 1950 | |
| Erigone denticulata Ralph Vary C..., 1939 | |
| Erigone dentigera Octavius Pic..., 1874 | |
| Erigone dentipalpis (Wider, 1834) | ⇒ |
| Erigone dentosa Octavius Pic..., 1894 | Dwarf weaver |
| Erigone digena Arthur Merto..., 1970 | Sheet-web spiders |
| Erigone dipona Arthur Merto..., 1970 | Sheet-web spiders |
| Erigone ephala Crosby & Bishop, 1928 | |
| Erigone fellita Eugen von Ke..., 1886 | |
| Erigone fluminea Alfred Frank..., 1991 | |
| Erigone hydrophytae Wilton Ivie ..., 1935 | |
| Erigone hypenema Crosby & Bishop, 1928 | |
| Erigone infernalis Eugen von Ke..., 1886 | |
| Erigone irrita Rudy Jocqué, 1984 | |
| Erigone longipalpis (Sundevall, 1830) | ⇒ Erigone sinensis Ehrenfried S..., 1936 |
| Erigone matanuskae Ralph Vary C..., 1947 | |
| Erigone matei (Keyserling, 1886) | ⇒ Ostearius melanopygius O. P.-Cambridge, 1879 |
| Erigone miniata Léon Baert, 1990 | Golfingiids |
| Erigone monterreyensis Willis J. Ge..., 1937 | |
| Erigone niwina (Chamberlin, 1916) | ⇒ Sphecozone niwina Ralph Vary C..., 1916 |
| Erigone ostiaria Crosby & Bishop, 1928 | |
| Erigone palustris Alfred Frank..., 1991 | |
| Erigone paradisicola Crosby & Bishop, 1928 | |
| Erigone personata Willis J. Ge..., 1936 | |
| Erigone poeyi Eugène Simon, 1897 | |
| Erigone praecursa Ralph Vary C..., 1939 | |
| Erigone psychrophila Tord Tamerla..., 1871 | Mountain meadowfoam |
| Erigone reducta Ehrenfried S..., 1950 | |
| Erigone simillima (Eugène Simon, 1884) | ⇒ Erigone cristatopalpus Eugène Simon, 1884 |
| Erigone sinensis Ehrenfried S..., 1936 | |
| Erigone stygia Willis J. Ge..., 1973 | |
| Erigone taibo (Chamberlin, 1916) | ⇒ Sphecozone niwina Ralph Vary C..., 1916 |
| Erigone tamazunchalensis Willis J. Ge..., 1937 | |
| Erigone tanana Ralph Vary C..., 1947 | |
| Erigone tepena Arthur Merto..., 1970 | |
| Erigone tirolensis Ludwig Carl ..., 1872 | |
| Erigone tolucana Willis J. Ge..., 1937 | |
| Erigone tristis Richard C. B..., 1892 | |
| Erigone uintana Ralph Vary C..., 1935 | |
| Erigone uliginosa Alfred Frank..., 1991 | |
| Erigone viabilis (Eugène Simon, 1884) | ⇒ Erigone cristatopalpus Eugène Simon, 1884 |
| Erigone watertoni Eugène Simon, 1897 | |
| Erigone welchi Jackson, 1911 | Welch's Money-spider |
| Erigone whitneyana Ralph Vary C..., 1935 | |
| Erigone whymperi Octavius Pic..., 1877 | Tiphiid wasps |
| Erigone whymperi minor Jackson, 1933 | |
| Erigone zabluta Eugen von Ke..., 1886 | |
| Erigone zographica (Eugène Simon, 1884) | ⇒ Erigone cristatopalpus Eugène Simon, 1884 |
| Floricomus bishopi Wilton Ivie ..., 1935 | |
| Floricomus crosbyi Wilton Ivie ..., 1935 | |
| Floricomus floricomus Crosby & Bishop, 1925 | |
| Floricomus fossilis ♰ D. Penney, 2005 | |
| Floricomus littoralis (Ralph Vary C..., 1935) | ⇒ Floricomus ornatulus Willis J. Ge..., 1936 |
| Floricomus mulaiki Willis J. Ge..., 1936 | |
| Floricomus nasutus James Henry ..., 1911 | |
| Floricomus nigriceps Richard C. B..., 1906 | Southern flatcoil |
| Floricomus ornatulus Willis J. Ge..., 1936 | |
| Floricomus plumalis Crosby, 1905 | |
| Floricomus praedesignatus Bishop & Crosby, 1935 | Cicada killer |
| Floricomus pythonicus Crosby & Bishop, 1925 | |
| Floricomus rostratus James Henry ..., 1882 | |
| Floricomus setosus Ralph Vary C..., 1944 | |
| Floricomus tallulae Ralph Vary C..., 1944 | |
| Frederickus coylei Paquin & al., 2008 | Pauropodans |
| Frederickus wilburi Levi & Herbe..., 1955 | |
| Glyphesis idahoanus Ralph Vary C..., 1949 | Thin-ribbed mountainsnail |
| Glyphesis scopulifer James Henry ..., 1882 | |
| Gnathonargus unicorn Richard C. B..., 1892 | |
| Gonatium crassipalpum Elizabeth Ba..., 1933 | |
| Gonatium crassipalpus Bryant, 1933 | |
| Gonatium ensipotens Eugène Simon, 1881 | |
| Gonatium rubens (Blackwall, 1833) | ⇒ Gonatium crassipalpum Elizabeth Ba..., 1933 |
| Goneatara eranistes Crosby & Bishop, 1927 | |
| Goneatara nasuta Barrows, 1943 | |
| Goneatara nasutus Barrows, 1943 | |
| Goneatara platyrhinus Crosby & Bishop, 1927 | |
| Goneatara plausibilis Bishop & Crosby, 1935 | Cicada killer |
| Grammonota angusta Charles Dent..., 1959 | |
| Grammonota barnesi Charles Dent..., 1959 | |
| Grammonota calcarata Elizabeth Ba..., 1948 | |
| Grammonota capitata James Henry ..., 1924 | |
| Grammonota chamberlini Wilton Ivie ..., 1935 | |
| Grammonota coloradensis Charles Dent..., 1959 | |
| Grammonota culebra Müller & Hei..., 1991 | |
| Grammonota dalunda Arthur Merto..., 1970 | Sheet-web spiders |
| Grammonota dubia Octavius Pic..., 1898 | Sheet-web spiders |
| Grammonota electa Bishop & Crosby, 1933 | Sheet-web spiders |
| Grammonota emertoni Elizabeth Ba..., 1940 | |
| Grammonota gentilis Richard C. B..., 1898 | |
| Grammonota gigas Richard C. B..., 1896 | |
| Grammonota innota Arthur Merto..., 1970 | Sheet-web spiders |
| Grammonota inornata James Henry ..., 1882 | |
| Grammonota insana Richard C. B..., 1898 | |
| Grammonota inusiata Bishop & Crosby, 1933 | |
| Grammonota jamaicensis Charles Dent..., 1959 | |
| Grammonota kincaidi Richard C. B..., 1906 | Southern flatcoil |
| Grammonota lutacola Arthur Merto..., 1970 | Sheet-web spiders |
| Grammonota maculata Richard C. B..., 1896 | Sheet-web spiders |
| Grammonota maritima James Henry ..., 1925 | |
| Grammonota nigriceps Richard C. B..., 1898 | |
| Grammonota nigrifrons Willis J. Ge..., 1936 | |
| Grammonota ornata Octavius Pic..., 1875 | |
| Grammonota pallipes Richard C. B..., 1895 | |
| Grammonota pergrata Octavius Pic..., 1894 | Sheet-web spiders |
| Grammonota pictilis Octavius Pic..., 1875 | |
| Grammonota salicicola Ralph Vary C..., 1949 | |
| Grammonota samariensis Müller & Hei..., 1991 | |
| Grammonota secata Arthur Merto..., 1970 | Sheet-web spiders |
| Grammonota semipallida James Henry ..., 1919 | |
| Grammonota subarctica Charles Dent..., 1959 | |
| Grammonota suspiciosa Willis J. Ge..., 1936 | |
| Grammonota tabuna Arthur Merto..., 1970 | Sheet-web spiders |
| Grammonota teresta Arthur Merto..., 1970 | Sheet-web spiders |
| Grammonota texana Richard C. B..., 1899 | |
| Grammonota trivittata Richard C. B..., 1895 | |
| Grammonota trivittata georgiana Chamberlin &..., 1944 | |
| Grammonota vittata Barrows, 1919 | |
| Grammonota zephyra Charles Dent..., 1959 | |
| Halorates alascensis (Banks, 1900) | ⇒ Oedothorax alascensis Richard C. B..., 1900 |
| Halorates reprobus O.P.-Cambridge, 1879 | |
| Hybauchenidium aquilonare Ludwig Carl ..., 1879 | |
| Hybauchenidium cymbadentatum Crosby & Bishop, 1935 | |
| Hybauchenidium ferrumequinum Grube, 1861 | |
| Hybauchenidium gibbosum William Sør..., 1898 | |
| Hypselistes florens Octavius Pic..., 1875 | Peatland Sheetweb Weaver |
| Hypselistes florens bulbiceps Chamberlin &..., 1935 | |
| Hypselistes jacksoni Pickard-Camb..., 1902 | |
| Hypselistes semiflavus L. Koch, 1879 | |
| Idionella anomala Willis J. Ge..., 1936 | |
| Idionella deserta Willis J. Ge..., 1936 | |
| Idionella formosa Richard C. B..., 1892 | Thin-ribbed mountainsnail |
| Idionella formosa pista Chamberlin, 1949 | |
| Idionella nesiotes Crosby, 1924 | |
| Idionella rugosa Crosby, 1905 | |
| Idionella sclerata Wilton Ivie ..., 1935 | |
| Idionella titivillitium Crosby & Bishop, 1925 | |
| Idionella tugana Ralph Vary C..., 1949 | Thin-ribbed mountainsnail |
| Islandiana cavealis Wilton Ivie, 1965 | |
| Islandiana coconino Wilton Ivie, 1965 | |
| Islandiana cristata Kirill Yurye..., 1987 | |
| Islandiana falsifica Eugen von Ke..., 1886 | |
| Islandiana flaveola Richard C. B..., 1892 | |
| Islandiana flavoides Wilton Ivie, 1965 | |
| Islandiana holmi Wilton Ivie, 1965 | |
| Islandiana iviei | |
| Islandiana lasalana Ralph Vary C..., 1935 | |
| Islandiana lewisi Milne & Wells, 2018 | |
| Islandiana longisetosa James Henry ..., 1882 | |
| Islandiana mimbres Wilton Ivie, 1965 | |
| Islandiana muma Wilton Ivie, 1965 | |
| Islandiana princeps Braendegaard, 1932 | Eastern Whiskered Money Spider |
| Islandiana speophila Wilton Ivie, 1965 | |
| Islandiana unicornis Wilton Ivie, 1965 | |
| Mermessus agressus Willis J. Ge..., 1937 | |
| Mermessus albulus Zorsch & Crosby, 1934 | |
| Mermessus annamae Willis J. Ge..., 1937 | |
| Mermessus antraeus Crosby, 1926 | |
| Mermessus augustae Crosby & Bishop, 1933 | |
| Mermessus augustalis Crosby & Bishop, 1933 | |
| Mermessus avius Alfred Frank..., 1987 | |
| Mermessus brevidentatus James Henry ..., 1909 | |
| Mermessus bryantae Wilton Ivie ..., 1935 | |
| Mermessus caelebs Alfred Frank..., 1987 | Sheet-web spiders |
| Mermessus coahuilanus Willis J. Ge..., 1940 | |
| Mermessus cognatus Alfred Frank..., 1987 | Sheet-web spiders |
| Mermessus colimus Alfred Frank..., 1987 | |
| Mermessus comes Alfred Frank..., 1987 | |
| Mermessus conexus Alfred Frank..., 1987 | |
| Mermessus conjunctus Alfred Frank..., 1991 | Spoon worms |
| Mermessus contortus James Henry ..., 1882 | |
| Mermessus denticulatus Richard C. B..., 1898 | |
| Mermessus dentiger O. P.-Cambridge, 1899 | Sheet-web spiders |
| Mermessus dentimandibulatus Eugen von Ke..., 1886 | |
| Mermessus dominicus Alfred Frank..., 1987 | |
| Mermessus dopainus Ralph Vary C..., 1936 | |
| Mermessus entomologicus James Henry ..., 1911 | |
| Mermessus estrellae Alfred Frank..., 1987 | |
| Mermessus facetus Alfred Frank..., 1987 | Sheet-web spiders |
| Mermessus floridus Alfred Frank..., 1987 | |
| Mermessus formosus Alfred Frank..., 1987 | |
| Mermessus fractus Alfred Frank..., 1987 | Sheet-web spiders |
| Mermessus fradeorum Berland, 1932 | Spider |
| Mermessus fuscus Alfred Frank..., 1987 | |
| Mermessus hebes Alfred Frank..., 1991 | Spoon worms |
| Mermessus holda Chamberlin &..., 1939 | |
| Mermessus holdus Ralph Vary C..., 1939 | |
| Mermessus hospita Alfred Frank..., 1987 | |
| Mermessus ignobilis Alfred Frank..., 1987 | |
| Mermessus imago Alfred Frank..., 1987 | |
| Mermessus index James Henry ..., 1914 | |
| Mermessus indicabilis Crosby & Bishop, 1928 | |
| Mermessus inornatus Wilton Ivie ..., 1935 | |
| Mermessus insulsus Alfred Frank..., 1991 | Spoon worms |
| Mermessus jona Bishop & Crosby, 1938 | |
| Mermessus leoninus Alfred Frank..., 1987 | |
| Mermessus libanus Alfred Frank..., 1987 | |
| Mermessus lindrothi Herman Theod..., 1960 | |
| Mermessus maculatus Richard C. B..., 1892 | Sheet-web spiders |
| Mermessus maderus Alfred Frank..., 1987 | |
| Mermessus major Alfred Frank..., 1987 | |
| Mermessus mediocris Alfred Frank..., 1987 | |
| Mermessus medius Alfred Frank..., 1987 | |
| Mermessus merus Alfred Frank..., 1987 | |
| Mermessus mniarus Crosby & Bishop, 1928 | |
| Mermessus modicus Alfred Frank..., 1987 | |
| Mermessus montanus Alfred Frank..., 1987 | |
| Mermessus monticola Alfred Frank..., 1987 | |
| Mermessus moratus Alfred Frank..., 1987 | |
| Mermessus niger Millidge, 1991 | |
| Mermessus nigrus Alfred Frank..., 1991 | Spoon worms |
| Mermessus obscurus Alfred Frank..., 1991 | Spoon worms |
| Mermessus orbus Alfred Frank..., 1987 | |
| Mermessus ornatus Alfred Frank..., 1987 | |
| Mermessus paludosus Alfred Frank..., 1987 | |
| Mermessus paulus Alfred Frank..., 1987 | |
| Mermessus perplexus Alfred Frank..., 1987 | |
| Mermessus persimilis Alfred Frank..., 1987 | |
| Mermessus pinicola Alfred Frank..., 1987 | |
| Mermessus probus Alfred Frank..., 1987 | |
| Mermessus proximus Eugen von Ke..., 1886 | |
| Mermessus rapidulus Bishop & Crosby, 1938 | Sheet-web spiders |
| Mermessus singularis Alfred Frank..., 1987 | |
| Mermessus socius Ralph Vary C..., 1949 | Thin-ribbed mountainsnail |
| Mermessus sodalis Alfred Frank..., 1987 | |
| Mermessus solitus Alfred Frank..., 1987 | |
| Mermessus solus Alfred Frank..., 1987 | |
| Mermessus subantillanus Alfred Frank..., 1987 | |
| Mermessus taibo Ralph Vary C..., 1933 | |
| Mermessus tenuipalpis James Henry ..., 1911 | |
| Mermessus tepejicanus Willis J. Ge..., 1937 | |
| Mermessus tibialis Alfred Frank..., 1987 | |
| Mermessus tlaxcalanus Willis J. Ge..., 1937 | |
| Mermessus tridentatus James Henry ..., 1882 | Spider |
| Mermessus trilobatus James Henry ..., 1882 | |
| Mermessus undulatus James Henry ..., 1914 | |
| Micrargus aleuticus Herman Theod..., 1960 | |
| Micrargus apertus Octavius Pic..., 1871 | |
| Micrargus herbigradus (John Blackwall, 1854) | ⇒ Micrargus apertus Octavius Pic..., 1871 |
| Micrargus longitarsus James Henry ..., 1882 | |
| Micrargus pacificus Emerton, 1923 | |
| Mythoplastoides erectus James Henry ..., 1915 | |
| Mythoplastoides exiguus Richard C. B..., 1892 | |
| Oedothorax alascensis Richard C. B..., 1900 | |
| Oedothorax banksi Embrik Strand, 1906 | |
| Oedothorax brevipalpus Richard C. B..., 1901 | |
| Oedothorax cascadeus Ralph Vary C..., 1949 | |
| Oedothorax collinus Ma & Zhu, 1991 | |
| Oedothorax fuegianus (Eugène Simon, 1902) | ⇒ Notolinga fuegiana Simon, 1902 |
| Oedothorax howardi Alexander Pe..., 1925 | |
| Oedothorax limatus Crosby, 1905 | |
| Oedothorax lucidus Jörg Wunderl..., 1974 | |
| Oedothorax maximus James Henry ..., 1882 | |
| Oedothorax melacra (Chamberlin, 1916) | ⇒ Ostearius melanopygius O. P.-Cambridge, 1879 |
| Oedothorax montanus Crosby, 1905 | |
| Oedothorax montevidensis (Keyserling, 1878) | ⇒ Laminacauda montevidensis Eugen von Ke..., 1878 |
| Oedothorax montifer James Henry ..., 1882 | |
| Oedothorax montiferus (Bishop & Crosby, 1935) | ⇒ Oedothorax montifer James Henry ..., 1882 |
| Oedothorax retusus Johan Peter ..., 1851 | |
| Oedothorax seminolus Wilton Ivie ..., 1935 | |
| Oedothorax trilobatus (Richard C. B..., 1896) | ⇒ Mermessus trilobatus James Henry ..., 1882 |
| Origanates rostratus James Henry ..., 1882 | |
| Pocadicnemis americana Alfred Frank..., 1976 | |
| Pocadicnemis juncea George Hazel..., 1953 | |
| Pocadicnemis occidentalis Alfred Frank..., 1976 | |
| Pocadicnemis pumila (John Blackwall, 1841) | ⇒ Pocadicnemis juncea George Hazel..., 1953 |
| Praestigia duffeyi Millidge, 1954 | Duffey's Bell-head Spider |
| Praestigia groenlandica (Herman Theod..., 1967) | ⇒ Praestigia sibirica Yuri M. Maru..., 2008 |
| Praestigia kulczynskii Eskov, 1979 | |
| Praestigia sibirica Yuri M. Maru..., 2008 | |
| Scotinotylus alienus Wladislaus K..., 1885 | |
| Scotinotylus allocotus Crawford & E..., 1989 | |
| Scotinotylus alpinus Richard C. B..., 1896 | |
| Scotinotylus ambiguus Millidge, 1981 | |
| Scotinotylus apache Ralph Vary C..., 1949 | Thin-ribbed mountainsnail |
| Scotinotylus autor Ralph Vary C..., 1949 | Thin-ribbed mountainsnail |
| Scotinotylus bicavatus Millidge, 1981 | |
| Scotinotylus bodenburgi Ralph Vary C..., 1947 | |
| Scotinotylus boreus Millidge, 1981 | |
| Scotinotylus castoris Ralph Vary C..., 1949 | Thin-ribbed mountainsnail |
| Scotinotylus columbia Ralph Vary C..., 1949 | Thin-ribbed mountainsnail |
| Scotinotylus crinitis Millidge, 1981 | |
| Scotinotylus dubiosus Millidge, 1981 | |
| Scotinotylus eutypus Chamberlin, 1948 | Thin-ribbed mountainsnail |
| Scotinotylus evansi Octavius Pic..., 1894 | |
| Scotinotylus exsectoides Millidge, 1981 | |
| Scotinotylus formicarius Charles Dent..., 1972 | |
| Scotinotylus gracilis Millidge, 1981 | |
| Scotinotylus humilis Millidge, 1981 | |
| Scotinotylus kenus Ralph Vary C..., 1949 | Thin-ribbed mountainsnail |
| Scotinotylus majesticus Ralph Vary C..., 1947 | |
| Scotinotylus montanus Millidge, 1981 | |
| Scotinotylus pallidus James Henry ..., 1882 | |
| Scotinotylus patellatus James Henry ..., 1917 | |
| Scotinotylus pollucis Millidge, 1981 | |
| Scotinotylus protervus Ludwig Carl ..., 1879 | |
| Scotinotylus provo Ralph Vary C..., 1949 | Thin-ribbed mountainsnail |
| Scotinotylus regalis Millidge, 1981 | |
| Scotinotylus sacer Crosby, 1929 | |
| Scotinotylus sacratus Millidge, 1981 | |
| Scotinotylus sagittatus Alfred Frank..., 1981 | |
| Scotinotylus sanctus (Crosby, 1929) | ⇒ Disembolus stridulans Ralph Vary C..., 1933 |
| Scotinotylus sintalutus Millidge, 1981 | |
| Scotinotylus vernalis James Henry ..., 1882 | |
| Scylaceus pallidus James Henry ..., 1882 | |
| Scylaceus selma Ralph Vary C..., 1949 | Thin-ribbed mountainsnail |
| Sisicottus aenigmaticus František M..., 1999 | |
| Sisicottus crossoclavis František M..., 1999 | |
| Sisicottus cynthiae František M..., 1999 | |
| Sisicottus montanus (James Henry ..., 1882) | ⇒ Sisicottus panopeus FrantiÅ¡ek M..., 1999 |
| Sisicottus montigena Bishop & Crosby, 1938 | |
| Sisicottus montigenus Bishop & Crosby, 1938 | |
| Sisicottus nesides Ralph Vary C..., 1921 | |
| Sisicottus orites (Ralph Vary C..., 1919) | ⇒ Sisicottus aenigmaticus FrantiÅ¡ek M..., 1999 |
| Sisicottus panopeus František M..., 1999 | |
| Sisicottus quoylei František M..., 1999 | |
| Sisicottus umnak | |
| Souessa spinifera Octavius Pic..., 1874 | |
| Sougambus bostoniensis James Henry ..., 1882 | |
| Spirembolus abnormis Millidge, 1980 | |
| Spirembolus approximatus Ralph Vary C..., 1949 | Thin-ribbed mountainsnail |
| Spirembolus bilobatus Ralph Vary C..., 1945 | |
| Spirembolus cheronus Ralph Vary C..., 1949 | |
| Spirembolus chilkatensis Ralph Vary C..., 1947 | |
| Spirembolus demonologicus Crosby, 1925 | |
| Spirembolus dispar Millidge, 1980 | |
| Spirembolus elevatus Millidge, 1980 | |
| Spirembolus erratus Millidge, 1980 | |
| Spirembolus falcatus Millidge, 1980 | |
| Spirembolus fasciatus Richard C. B..., 1904 | |
| Spirembolus fuscus Millidge, 1980 | |
| Spirembolus hibernus Millidge, 1980 | |
| Spirembolus humilis Millidge, 1980 | |
| Spirembolus latebricola Millidge, 1980 | |
| Spirembolus levis Millidge, 1980 | |
| Spirembolus maderus Ralph Vary C..., 1949 | |
| Spirembolus mendax Millidge, 1980 | |
| Spirembolus mirus Millidge, 1980 | |
| Spirembolus monicus Ralph Vary C..., 1949 | Thin-ribbed mountainsnail |
| Spirembolus monticolens Ralph Vary C..., 1919 | |
| Spirembolus montivagus Millidge, 1980 | |
| Spirembolus mundus Ralph Vary C..., 1933 | Florida carpenter ant |
| Spirembolus novellus Millidge, 1980 | |
| Spirembolus oreinoides Ralph Vary C..., 1949 | |
| Spirembolus pachygnathus Ralph Vary C..., 1935 | |
| Spirembolus pallidus Ralph Vary C..., 1935 | |
| Spirembolus perjucundus (Crosby, 1925) | ⇒ Spirembolus humilis Millidge, 1980 |
| Spirembolus phylax Ralph Vary C..., 1935 | |
| Spirembolus praelongus Millidge, 1980 | |
| Spirembolus prominens Millidge, 1980 | |
| Spirembolus proximus Millidge, 1980 | |
| Spirembolus pusillus Millidge, 1980 | |
| Spirembolus redondo Ralph Vary C..., 1945 | |
| Spirembolus selma Chamberlin, 1949 | |
| Spirembolus spirotubus Richard C. B..., 1895 | |
| Spirembolus synopticus Crosby, 1925 | |
| Spirembolus tiogensis Millidge, 1980 | |
| Spirembolus tortuosus Crosby, 1925 | |
| Spirembolus vallicolens Ralph Vary C..., 1920 | |
| Spirembolus venustus Millidge, 1980 | |
| Spirembolus whitneyanus Ralph Vary C..., 1935 | |
| Styloctetor compar Westring, 1861 | |
| Styloctetor lehtineni Marusik & Ta..., 1998 | |
| Styloctetor purpurescens Keyserling, 1886 | |
| Styloctetor romanus O. P.-Cambridge, 1872 | |
| Styloctetor stativus Simon, 1881 | |
| Styloctetor vacerosus Keyserling, 1886 | |
| Tachygyna alia Alfred Frank..., 1984 | |
| Tachygyna cognata Alfred Frank..., 1984 | |
| Tachygyna coosi Alfred Frank..., 1984 | |
| Tachygyna delecta Ralph Vary C..., 1939 | |
| Tachygyna exilis Alfred Frank..., 1984 | |
| Tachygyna gargopa Crosby & Bishop, 1929 | |
| Tachygyna haydeni Ralph Vary C..., 1939 | |
| Tachygyna pallida Ralph Vary C..., 1939 | |
| Tachygyna proba Alfred Frank..., 1984 | |
| Tachygyna sonoma Alfred Frank..., 1984 | |
| Tachygyna speciosa Alfred Frank..., 1984 | |
| Tachygyna tuoba Ralph Vary C..., 1933 | |
| Tachygyna ursina Bishop & Crosby, 1938 | |
| Tachygyna vancouverana Ralph Vary C..., 1939 | |
| Tachygyna watona Ralph Vary C..., 1949 | |
| Tapinocyba affinis Roger de Les..., 1907 | |
| Tapinocyba algirica Robert Bosmans, 2007 | |
| Tapinocyba bicarinata James Henry ..., 1913 | |
| Tapinocyba cameroni Dupérré & Pa..., 2007 | |
| Tapinocyba dietrichi Crosby & Bishop, 1933 | |
| Tapinocyba distincta Richard C. B..., 1892 | |
| Tapinocyba emertoni Barrows & Wi..., 1942 | |
| Tapinocyba flagellata (Emerton, 1911) | ⇒ Phlattothrata flagellata James Henry ..., 1911 |
| Tapinocyba gamma Ralph Vary C..., 1949 | |
| Tapinocyba hortensis James Henry ..., 1924 | |
| Tapinocyba insecta Ludwig Carl ..., 1869 | |
| Tapinocyba lindrothi Hackman, 1954 | |
| Tapinocyba matanuskae Chamberlin &..., 1947 | |
| Tapinocyba minuta (James Henry ..., 1909) | ⇒ Tapinocyba prima Dupérré & Pa..., 2005 |
| Tapinocyba parva Kulczynski, 1926 | |
| Tapinocyba pontis Ralph Vary C..., 1949 | |
| Tapinocyba praecox Octavius Pic..., 1873 | |
| Tapinocyba prima Dupérré & Pa..., 2005 | |
| Tapinocyba scopulifera (Emerton, 1882) | ⇒ Glyphesis scopulifer James Henry ..., 1882 |
| Tapinocyba simplex James Henry ..., 1882 | |
| Tapinocyba sucra Ralph Vary C..., 1949 | |
| Tapinocyba vermontis Ralph Vary C..., 1949 | |
| Tmeticus affinis Blackwall, 1855 | Lobate brittle star |
| Tmeticus auritus (Fage, 1938) | ⇒ Mermessus rapidulus Bishop & Crosby, 1938 |
| Tmeticus bidentata Emerton, 1882 | |
| Tmeticus brevipalpus Banks, 1901 | |
| Tmeticus denticulatus (Banks, 1898) | ⇒ Mermessus denticulatus Richard C. B..., 1898 |
| Tmeticus maculatus (Banks, 1892) | ⇒ Mermessus maculatus Richard C. B..., 1892 |
| Tmeticus maximus Emerton, 1882 | |
| Tmeticus ornatus James Henry ..., 1914 | |
| Tmeticus rectangulata Emerton, 1915 | |
| Tmeticus trilobatus (Emerton, 1882) | ⇒ Mermessus trilobatus James Henry ..., 1882 |
| Walckenaeria aenea Millidge, 1983 | |
| Walckenaeria anceps Millidge, 1983 | |
| Walckenaeria antica Blackwall, 1833 | |
| Walckenaeria aprilis Millidge, 1983 | |
| Walckenaeria arcana Millidge, 1983 | |
| Walckenaeria arctica Millidge, 1983 | |
| Walckenaeria atrotibialis Octavius Pic..., 1878 | |
| Walckenaeria auranticeps James Henry ..., 1882 | |
| Walckenaeria aurata Millidge, 1983 | |
| Walckenaeria bifida Millidge, 1983 | |
| Walckenaeria blanda Millidge, 1983 | |
| Walckenaeria breviaria Crosby & Bishop, 1931 | |
| Walckenaeria brevicornis James Henry ..., 1882 | |
| Walckenaeria capito Johan Peter ..., 1861 | |
| Walckenaeria carolina Millidge, 1983 | |
| Walckenaeria castanea James Henry ..., 1882 | |
| Walckenaeria clavicornis James Henry ..., 1882 | |
| Walckenaeria clavipalpis Millidge, 1983 | |
| Walckenaeria columbia Millidge, 1983 | |
| Walckenaeria communis James Henry ..., 1882 | |
| Walckenaeria corniculans O.P.-Cambridge, 1875 | Small-horned Walckenaer |
| Walckenaeria cornuella Ralph Vary C..., 1939 | |
| Walckenaeria crocea Millidge, 1983 | |
| Walckenaeria crosbyi Jean-Louis Fage, 1938 | Sheet-web spiders |
| Walckenaeria cucullata Carl Ludwig ..., 1836 | |
| Walckenaeria cuspidata John Blackwall, 1833 | Sea egg |
| Walckenaeria cuspidata brevicula Crosby & Bishop, 1931 | |
| Walckenaeria cuspidata cuspidata Blackwall, 1833 | |
| Walckenaeria digitata James Henry ..., 1913 | |
| Walckenaeria directa Octavius Pic..., 1874 | |
| Walckenaeria discolor Millidge, 1983 | |
| Walckenaeria dixiana Ralph Vary C..., 1944 | |
| Walckenaeria dondalei Millidge, 1983 | |
| Walckenaeria dysderoides Wider, 1834 | |
| Walckenaeria emarginata Millidge, 1983 | |
| Walckenaeria exigua Millidge, 1983 | |
| Walckenaeria faceta Millidge, 1983 | |
| Walckenaeria fallax Millidge, 1983 | |
| Walckenaeria floridiana Millidge, 1983 | |
| Walckenaeria fraudatrix Millidge, 1983 | |
| Walckenaeria fusciceps Millidge, 1983 | |
| Walckenaeria gertschi Millidge, 1983 | |
| Walckenaeria helenae Millidge, 1983 | |
| Walckenaeria indirecta Octavius Pic..., 1874 | |
| Walckenaeria intoleranda Eugen von Ke..., 1886 | Sheet-web spiders |
| Walckenaeria iviei Millidge, 1983 | |
| Walckenaeria karpinskii Octavius Pic..., 1873 | |
| Walckenaeria kochi Octavius Pic..., 1872 | |
| Walckenaeria latens Millidge, 1983 | |
| Walckenaeria lepida Wladislaus K..., 1885 | |
| Walckenaeria maesta Millidge, 1983 | |
| Walckenaeria mesus Ralph Vary C..., 1949 | Thin-ribbed mountainsnail |
| Walckenaeria mexicana Millidge, 1983 | |
| Walckenaeria microspiralis Millidge, 1983 | |
| Walckenaeria minuta James Henry ..., 1882 | |
| Walckenaeria monoceras Ralph Vary C..., 1947 | |
| Walckenaeria obtusa John Blackwall, 1836 | |
| Walckenaeria occidentalis Millidge, 1983 | |
| Walckenaeria oregona Millidge, 1983 | |
| Walckenaeria orghidani Georgescu, 1977 | |
| Walckenaeria pallida James Henry ..., 1882 | |
| Walckenaeria palustris Millidge, 1983 | |
| Walckenaeria pellax Millidge, 1983 | |
| Walckenaeria perdita Ralph Vary C..., 1949 | Thin-ribbed mountainsnail |
| Walckenaeria pinocchio Kaston, 1945 | |
| Walckenaeria placida Richard C. B..., 1892 | |
| Walckenaeria prominens Millidge, 1983 | |
| Walckenaeria puella Millidge, 1983 | |
| Walckenaeria pullata Millidge, 1983 | |
| Walckenaeria reclusa Millidge, 1983 | |
| Walckenaeria redneri Millidge, 1983 | |
| Walckenaeria rufula Millidge, 1983 | |
| Walckenaeria rutilis Millidge, 1983 | |
| Walckenaeria saniuana Ralph Vary C..., 1939 | |
| Walckenaeria serrata Millidge, 1983 | |
| Walckenaeria solivaga Millidge, 1983 | |
| Walckenaeria spiralis James Henry ..., 1882 | |
| Walckenaeria subdirecta Millidge, 1983 | |
| Walckenaeria subpallida Millidge, 1983 | |
| Walckenaeria subspiralis Millidge, 1983 | |
| Walckenaeria subvigilax Millidge, 1983 | |
| Walckenaeria tenella Millidge, 1983 | |
| Walckenaeria teres Millidge, 1983 | |
| Walckenaeria thrinax Ralph Vary C..., 1933 | |
| Walckenaeria tibialis James Henry ..., 1882 | |
| Walckenaeria tricornis James Henry ..., 1882 | |
| Walckenaeria tumida Crosby & Bishop, 1931 | |
| Walckenaeria vigilax (John Blackwall, 1853) | ⇒ Walckenaeria spiralis James Henry ..., 1882 |
| Walckenaeria weber Ralph Vary C..., 1949 | Thin-ribbed mountainsnail |
| Zornella armata Richard C. B..., 1906 | Southern flatcoil |
| Zornella cryptodon Ralph Vary C..., 1920 | |
| Zornella cultrigera (Ludwig Carl ..., 1879) | ⇒ Zornella armata Richard C. B..., 1906 |
