• Aatolana rapax Bruce, 1993
• Aatolana schioedtei (Miers, 1884)
• Aatolana springthorpei Keable, 1998
• Abebaioscia troglodytes Vandel, 1973
• Abyssaranea rupis Wilson & Hessler, 1974
• Abyssarcturella cidaris Poore & Bardsley, 1992
• Abyssarcturella panope Poore & Bardsley, 1992
• Abyssarcturus averincevi Kussakin & Vasina, 1995
• Abyssianira acutilobi Doti & Roccatagliata, 2006
• Abyssianira argentenensis Menzies, 1962
• Abyssianira bathyalis Just, 1990
• Abyssianira dentifrons Menzies, 1956
• Abyssianira lingula Doti & Roccatagliata, 2006
• Abyssianira tasmaniensis Just, 1990
• Abyssijaera acarina Menzies, 1962 accepted as Katianira acarina (Menzies, 1962)
• Abyssoniscus ovalis Birstein, 1971
• Acaeroplastes amicitiae Pollo Zorita & Dalens, 1982
• Acaeroplastes delattini Verhoeff, 1951
• Acaeroplastes ischianus Verhoeff, 1942
• Acaeroplastes kosswigi Verhoeff, 1941
• Acaeroplastes melanurus (Budde-Lund, 1885)
• Acaeroplastes melanurus melanurus (Budde-Lund, 1885)
• Acaeroplastes melanurus sardous Verhoeff, 1918
• Acaeroplastes pellegrinensis Verhoeff, 1918
• Acaeroplastes romanus Schmölzer, 1953
• Acaeroplastes simrothi (Verhoeff, 1918)
• Acaeroplastes syriacus Verhoeff & Strouhal, 1967
• Acanthamunnopsis hystrix Schultz, 1978
• Acanthamunnopsis longicornis (Hansen, 1895)
• Acanthamunnopsis milleri Wilson, 1982
• Acanthamunnopsis spinifer (Vanhöffen, 1914)
• Acantharcturus acanthurus (Monod, 1925) accepted as Mixarcturus acanthurus (Monod, 1925)
• Acantharcturus acutipleon Schultz, 1981
• Acantharcturus brevipleon Kussakin & Vasina, 1997
• Acantharcturus longipleon Kussakin & Vasina, 1997
• Acanthaspidia acanthonotus (Beddard, 1886) accepted as Iolanthe acanthonotus Beddard, 1886
• Acanthaspidia bifurcata Menzies, 1962 accepted as Iolanthe bifurcata (Menzies, 1962)
• Acanthaspidia bifurcatoides Vasina & Kussakin, 1982 accepted as Iolanthe bifurcatoides (Vasina & Kussakin, 1982)
• Acanthaspidia curtispinosa Vasina & Kussakin, 1982 accepted as Iolanthe curtispinosa (Vasina & Kussakin, 1982)
• Acanthaspidia decorata (Hansen, 1895) accepted as Iolanthe decorata Hansen, 1895
• Acanthaspidia drygalskii Vanhöffen, 1914 accepted as Iolanthe drygalskii (Vanhöffen, 1914)
• Acanthaspidia hanseni Birstein, 1963 accepted as Iolanthe hanseni (Birstein, 1963)
• Acanthaspidia iolanthoidea Vasina & Kussakin, 1982 accepted as Iolanthe iolanthoidea (Vasina & Kussakin, 1982)
• Acanthaspidia laevis Chardy, 1975 accepted as Iolanthe laevis (Chardy, 1975)
• Acanthaspidia longiramosa Vasina & Kussakin, 1982 accepted as Iolanthe longiramosa (Vasina & Kussakin, 1982)
• Acanthaspidia matsi Timm, Kaiser & Brandt, 2013 accepted as Iolanthe matsi (Timm, Kaiser & Brandt, 2013)
• Acanthaspidia mucronata (Menzies & Schultz, 1968) accepted as Iolanthe mucronata (Menzies & Schultz, 1968)
• Acanthaspidia namibia Brandt, 2001 accepted as Iolanthe namibia (Brandt, 2001)
• Acanthaspidia natalensis (Kensley, 1977) accepted as Iolanthe natalensis (Kensley, 1977)
• Acanthaspidia neonotus (Menzies & George, 1972) accepted as Iolanthe neonotus Menzies & George, 1972
• Acanthaspidia pleuronotus (Menzies & Schultz, 1968) accepted as Iolanthe pleuronotus Menzies & Schultz, 1968
• Acanthaspidia porrecta Menzies & Schultz, 1968 accepted as Iolanthe porrecta (Menzies & Schultz, 1968)
• Acanthaspidia rostrata (Menzies & Schultz, 1968) accepted as Iolanthe rostrata (Menzies & Schultz, 1968)
• Acanthaspidia sulcatacornia Menzies & Schultz, 1968 accepted as Iolanthe sulcatacornia (Menzies & Schultz, 1968)
• Acanthaspidia typhlops (G. O. Sars, 1879) accepted as Iolanthe typhlops (G. O. Sars, 1879)
• Acanthastenasellus forficuloides Chelazzi & Messana, 1985
• Acanthocope acutispina Beddard, 1885
• Acanthocope annulatus Menzies, 1962
• Acanthocope argentinae Menzies, 1962
• Acanthocope armata Chardy, 1972
• Acanthocope beddardi Malyutina, 1999
• Acanthocope carinata Chardy, 1972
• Acanthocope curticauda Birstein, 1970
• Acanthocope eleganta Malyutina & Brandt, 2004
• Acanthocope galaica Malyutina, Frutos & Brandt, 2018
• Acanthocope galatheae Wolff, 1962
• Acanthocope intermedia (Beddard, 1885) accepted as Storthyngura intermedia (Beddard, 1885)
• Acanthocope mendeleevi Malyutina, 1998
• Acanthocope muelleri Malyutina, 1999
• Acanthocope orbus Menzies & George, 1972
• Acanthocope pentacornis Müller, 1989
• Acanthocope puertoricana Malyutina, Frutos & Brandt, 2018
• Acanthocope spinicauda Beddard, 1885
• Acanthocope spinosissima Menzies, 1956
• Acanthocope unicornis Menzies, 1962
• Acanthodillo agasketos Lewis, 1998
• Acanthodillo barringtonensis Lewis, 1998
• Acanthodillo brevicornis (Budde-Lund, 1913)
• Acanthodillo commensalis (Baker, 1913)
• Acanthodillo erinaceus Verhoeff, 1926
• Acanthodillo formicarum Vandel, 1973
• Acanthodillo kioloa Lewis, 1998
• Acanthodillo minutus (Baker, 1913)
• Acanthodillo spinosus (Dana, 1853)
• Acanthodillo tuberosus (Wahrberg, 1922)
• Acanthomunna agassizi George, 2004
• Acanthomunna beddardi Menzies, 1962
• Acanthomunna bettongia Cohen, 1998
• Acanthomunna hystrix (Hansen, 1916)
• Acanthomunna lagorchestes Cohen, 1998
• Acanthomunna macropus Cohen, 1998
• Acanthomunna potorous Cohen, 1998
• Acanthomunna proteus Beddard, 1886
• Acanthomunna spinipes (Vanhöffen, 1914)
• Acanthomunna tannerensis Schultz, 1966
• Acanthoniscus richardsonae Rodríguez-Cabrera & de Armas, 2023
• Acanthoniscus spiniger Gosse, 1851
• Acanthoniscus typhlops G. O. Sars, 1879 accepted as Acanthaspidia typhlops (G. O. Sars, 1879) accepted as Iolanthe typhlops (G. O. Sars, 1879)
• Acanthoserolis polaris (Richardson, 1911)
• Acanthoserolis schythei (Lütken, 1858)