- family: Agelenidae
- family: Amaurobiidae
- family: Anyphaenidae
- family: Araneidae
- genus: Acanthepeira
- genus: Aculepeira
- genus: Araneus
- species: Araneus bicentenarius (McCook, 1888)
- species: Araneus cavaticus (Keyserling, 1881)
- species: Araneus corticarius (Emerton, 1884)
- species: Araneus diadematus Clerck, 1757
- species: Araneus groenlandicola (Strand, 1906)
- species: Araneus iviei (Archer, 1951)
- species: Araneus juniperi (Emerton, 1884)
- species: Araneus marmoreus Clerck, 1757
- species: Araneus nordmanni (Thorell, 1870)
- species: Araneus saevus (L. Koch, 1872)
- species: Araneus trifolium (Hentz, 1847)
- genus: Araniella
- genus: Argiope
- genus: Cercidia
- genus: Cyclosa
- genus: Eustala
- genus: Hypsosinga
- genus: Larinioides
- genus: Mangora
- genus: Metepeira
- genus: Neoscona
- genus: Singa
- genus: Zygiella
- family: Atypidae
- family: Clubionidae
- genus: Clubiona
- species: Clubiona abboti L. Koch, 1866
- species: Clubiona angulata Dondale & Redner, 1976
- species: Clubiona bishopi Edwards, 1958
- species: Clubiona bryantae Gertsch, 1941
- species: Clubiona canadensis Emerton, 1890
- species: Clubiona chippewa Gertsch, 1941
- species: Clubiona furcata Emerton, 1919
- species: Clubiona gertschi Edwards, 1958
- species: Clubiona johnsoni Gertsch, 1941
- species: Clubiona kastoni Gertsch, 1941
- species: Clubiona kulczynskii Lessert, 1905
- species: Clubiona maritima L. Koch, 1867
- species: Clubiona mixta Emerton, 1890
- species: Clubiona moesta Banks, 1896
- species: Clubiona norvegica Strand, 1900
- species: Clubiona obesa Hentz, 1847
- species: Clubiona opeongo Edwards, 1958
- species: Clubiona pallidula (Clerck, 1757)
- species: Clubiona pikei Gertsch, 1941
- species: Clubiona praematura Emerton, 1909
- species: Clubiona pygmaea Banks, 1892
- species: Clubiona quebecana Dondale & Redner, 1976
- species: Clubiona riparia L. Koch, 1866
- species: Clubiona spiralis Emerton, 1909
- species: Clubiona trivialis C. L. Koch, 1843
- genus: Elaver
- family: Corinnidae
- family: Cybaeidae
- family: Dictynidae
- family: Dysderidae
- family: Gnaphosidae
- family: Hahniidae
- family: Linyphiidae
- genus: Agyneta
- genus: Allomengea
- genus: Annapolis
- genus: Aphileta
- genus: Baryphyma
- genus: Bathyphantes
- genus: Carorita
- genus: Centromerita
- genus: Centromerus
- genus: Ceraticelus
- species: Ceraticelus atriceps (O. P.-Cambridge, 1874)
- species: Ceraticelus bulbosus (Emerton, 1882)
- species: Ceraticelus crassiceps Chamberlin & Ivie, 1939
- species: Ceraticelus emertoni (O. P.-Cambridge, 1874)
- species: Ceraticelus fissiceps (O. P.-Cambridge, 1874)
- species: Ceraticelus laetabilis (O. P.-Cambridge, 1874)
- species: Ceraticelus laetus (O. P.-Cambridge, 1874)
- species: Ceraticelus minutus (Emerton, 1882)
- species: Ceraticelus silus Dondale, 1958
- species: Ceraticelus similis (Banks, 1892)
- genus: Ceratinella
- genus: Ceratinops
- genus: Ceratinopsis
- genus: Cheniseo
- genus: Cnephalocotes
- genus: Collinsia
- genus: Coloncus
- genus: Dicymbium
- genus: Diplocentria
- genus: Diplocephalus
- genus: Diplostyla
- genus: Dismodicus
- genus: Drapetisca
- genus: Entelecara
- genus: Eridantes
- genus: Erigone
- species: Erigone aletris Crosby & Bishop, 1928
- species: Erigone alsaida Crosby & Bishop, 1928
- species: Erigone arctica (White, 1852)
- species: Erigone atra Blackwall, 1833
- species: Erigone autumnalis Emerton, 1882
- species: Erigone blaesa Crosby & Bishop, 1928
- species: Erigone dentigera O. P.-Cambridge, 1874
- species: Erigone psychrophila Thorell, 1871
- species: Erigone tirolensis L. Koch, 1872
- species: Erigone whymperi O. P.-Cambridge, 1877
- species: Erigone zographica Crosby & Bishop, 1928
- genus: Estrandia
- genus: Floricomus
- genus: Frontinella
- genus: Glyphesis
- genus: Gnathonaroides
- genus: Gonatium
- genus: Goneatara
- genus: Grammonota
- genus: Helophora
- genus: Hilaira
- genus: Horcotes
- genus: Hybauchenidium
- genus: Hypomma
- genus: Hypselistes
- genus: Idionella
- genus: Improphantes
- genus: Incestophantes
- genus: Islandiana
- genus: Kaestneria
- genus: Lepthyphantes
- genus: Lophomma
- genus: Macrargus
- genus: Maro
- genus: Maso
- genus: Mecynargus
- genus: Megalepthyphantes
- genus: Meioneta
- genus: Mermessus
- genus: Metopobactrus
- genus: Microlinyphia
- genus: Microneta
- genus: Neriene
- genus: Oedothorax
- genus: Oreoneta
- genus: Oreonetides
- genus: Oreophantes
- genus: Ostearius
- genus: Pelecopsis
- genus: Perregrinus
- genus: Phlattothrata
- genus: Pityohyphantes
- genus: Pocadicnemis
- genus: Poeciloneta
- genus: Porrhomma
- genus: Satilatlas
- genus: Sciastes
- genus: Scironis
- genus: Scotinotylus
- genus: Scylaceus
- genus: Scyletria
- genus: Semljicola
- genus: Sisicottus
- genus: Sisicus
- genus: Sisis
- genus: Soucron
- genus: Souessa
- genus: Sougambus
- genus: Souidas
- genus: Soulgas
- genus: Stemonyphantes
- genus: Styloctetor
- genus: Tapinocyba
- genus: Tapinopa
- genus: Taranucnus
- genus: Tarsiphantes
- genus: Tennesseellum
- genus: Tenuiphantes
- genus: Tmeticus
- genus: Tunagyna
- genus: Vermontia
- genus: Wabasso
- genus: Walckenaeria
- species: Walckenaeria arctica Millidge, 1983
- species: Walckenaeria atrotibialis (O. P.-Cambridge, 1878)
- species: Walckenaeria auranticeps (Emerton, 1882)
- species: Walckenaeria castanea (Emerton, 1882)
- species: Walckenaeria clavipalpis Millidge, 1983
- species: Walckenaeria communis (Emerton, 1882)
- species: Walckenaeria cuspidata brevicula (Crosby & Bishop, 1931)
- species: Walckenaeria digitata (Emerton, 1913)
- species: Walckenaeria directa (O. P.-Cambridge, 1874)
- species: Walckenaeria exigua Millidge, 1983
- species: Walckenaeria fallax Millidge, 1983
- species: Walckenaeria karpinskii (O. P.-Cambridge, 1873)
- species: Walckenaeria kochi (O. P.-Cambridge, 1872)
- species: Walckenaeria lepida (Kulczynski, 1885)
- species: Walckenaeria minuta (Emerton, 1882)
- species: Walckenaeria pallida (Emerton, 1882)
- species: Walckenaeria palustris Millidge, 1983
- species: Walckenaeria pinocchio (Kaston, 1945)
- species: Walckenaeria redneri Millidge, 1983
- species: Walckenaeria spiralis (Emerton, 1882)
- species: Walckenaeria tibialis (Emerton, 1882)
- species: Walckenaeria tricornis (Emerton, 1882)
- species: Walckenaeria tumida (Crosby & Bishop, 1931)
- genus: Wubana
- genus: Zornella
- family: Liocranidae
- family: Lycosidae
- genus: Alopecosa
- genus: Arctosa
- genus: Geolycosa
- genus: Gladicosa
- genus: Hogna
- genus: Pardosa
- species: Pardosa albomaculata Emerton, 1885
- species: Pardosa algens (Kulczynski, 1908)
- species: Pardosa concinna (Thorell, 1877)
- species: Pardosa distincta (Blackwall, 1846)
- species: Pardosa furcifera (Thorell, 1875)
- species: Pardosa fuscula (Thorell, 1875)
- species: Pardosa glacialis (Thorell, 1872)
- species: Pardosa groenlandica (Thorell, 1872)
- species: Pardosa hyperborea (Thorell, 1872)
- species: Pardosa labradorensis (Thorell, 1875)
- species: Pardosa lapidicina Emerton, 1885
- species: Pardosa lapponica (Thorell, 1872)
- species: Pardosa mackenziana (Keyserling, 1877)
- species: Pardosa milvina (Hentz, 1844)
- species: Pardosa modica (Blackwall, 1846)
- species: Pardosa moesta Banks, 1892
- species: Pardosa podhorskii (Kulczynski, 1907)
- species: Pardosa saxatilis (Hentz, 1844)
- species: Pardosa tesquorum (Odenwall, 1901)
- species: Pardosa uintana Gertsch, 1933
- species: Pardosa xerampelina (Keyserling, 1877)
- genus: Pirata
- species: Pirata aspirans Chamberlin, 1904
- species: Pirata bryantae Kurata, 1944
- species: Pirata canadensis Dondale & Redner, 1981
- species: Pirata cantralli Wallace & Exline, 1978
- species: Pirata insularis Emerton, 1885
- species: Pirata minutus Emerton, 1885
- species: Pirata montanus Emerton, 1885
- species: Pirata piraticus (Clerck, 1757)
- species: Pirata sedentarius Montgomery, 1904
- species: Pirata zelotes Wallace & Exline, 1978
- genus: Schizocosa
- genus: Trebacosa
- genus: Trochosa
- genus: Varacosa
- family: Mimetidae
- family: Miturgidae
- family: Nesticidae
- family: Oecobiidae
- family: Oxyopidae
- family: Philodromidae
- genus: Ebo
- genus: Philodromus
- species: Philodromus marxi Keyserling, 1884
- species: Philodromus minutus Banks, 1892
- species: Philodromus mysticus Dondale & Redner, 1975
- species: Philodromus oneida Levi, 1951
- species: Philodromus peninsulanus Gertsch, 1934
- species: Philodromus pernix Blackwall, 1846
- species: Philodromus placidus Banks, 1892
- species: Philodromus praelustris Keyserling, 1880
- species: Philodromus rufus quartus Dondale & Redner, 1968
- species: Philodromus rufus vibrans Dondale, 1964
- species: Philodromus validus (Gertsch, 1933)
- species: Philodromus vulgaris (Hentz, 1847)
- genus: Thanatus
- genus: Tibellus
- family: Pholcidae
- family: Pisauridae
- family: Salticidae
- family: Scytodidae
- family: Tetragnathidae
- family: Theridiidae
- family: Theridiosomatidae
- family: Thomisidae
- genus: Bassaniana
- genus: Coriarachne
- genus: Misumena
- genus: Misumenops
- genus: Ozyptila
- genus: Tmarus
- genus: Xysticus
- species: Xysticus alboniger Turnbull, Dondale & Redner, 1965
- species: Xysticus ampullatus Turnbull, Dondale & Redner, 1965
- species: Xysticus banksi Bryant, 1933
- species: Xysticus britcheri Gertsch, 1934
- species: Xysticus canadensis Gertsch, 1934
- species: Xysticus chippewa Gertsch, 1953
- species: Xysticus discursans Keyserling, 1880
- species: Xysticus durus (Sorensen, 1898)
- species: Xysticus elegans Keyserling, 1880
- species: Xysticus ellipticus Turnbull, Dondale & Redner, 1965
- species: Xysticus emertoni Keyserling, 1880
- species: Xysticus ferox (Hentz, 1847)
- species: Xysticus fraternus Banks, 1895
- species: Xysticus gulosus Keyserling, 1880
- species: Xysticus labradorensis Keyserling, 1887
- species: Xysticus luctans (C. L. Koch, 1845)
- species: Xysticus luctuosus (Blackwall, 1836)
- species: Xysticus montanensis Keyserling, 1887
- species: Xysticus obscurus Collett, 1877
- species: Xysticus pellax O. P.-Cambridge, 1894
- species: Xysticus punctatus Keyserling, 1880
- species: Xysticus triangulosus Emerton, 1894
- species: Xysticus triguttatus Keyserling, 1880
- species: Xysticus winnipegensis Turnbull, Dondale & Redner, 1965
- family: Titanoecidae
- family: Uloboridae