• [non-Uristidae] albinus (K.H. Barnard, 1932)
• [non-Uristidae] dawsoni Hurley, 1963
• [non-Uristidae] georgianus (Schellenberg, 1931)
• [non-Uristidae] natalensis K.H. Barnard, 1916
• Abdia latipalpus (Walker & Scott, 1903)
• Aberratylus aberrantis (J.L. Barnard, 1962)
• Abludogammarus flavus (Dybowsky, 1874)
• Abludomelita aculeata (Chevreux, 1911)
• Abludomelita amoena (Hansen, 1888)
• Abludomelita breviarticulata (Ren, 2012)
• Abludomelita californica Alderman, 1936 accepted as Desdimelita californica (Alderman, 1936)
• Abludomelita denticulata (Nagata, 1965)
• Abludomelita gladiosa (Spence Bate, 1862)
• Abludomelita huanghaiensis (Ren, 2012)
• Abludomelita japonica (Nagata, 1965)
• Abludomelita klitinii Labay, 2016
• Abludomelita machaera (K.H. Barnard, 1955)
• Abludomelita mucronata (Griffiths, 1975)
• Abludomelita obtusata (Montagu, 1813)
• Abludomelita okhotensis Labay, 2016
• Abludomelita richardi (Chevreux, 1900)
• Abludomelita rotundactyla (Ren, 2012)
• Abludomelita semipalmata G. Karaman, 1984 † accepted as Alsacomelita semipalmata G. Karaman, 1984 †
• Abludomelita sexstachya (Gamo, 1977) accepted as Quasimelita sexstachya (Gamo, 1977)
• Abludomelita somovae (Bulyčeva, 1952)
• Abludomelita tuberculata (Nagata, 1965) accepted as Melita tuberculata Nagata, 1965
• Abludomelita unamoena (Hirayama, 1987)
• Abludomelita valida (Shoemaker, 1955) accepted as Melitoides valida (Shoemaker, 1955)
• Aborolobatea insidiosa Hughes & Lowry, 2009
• Aborolobatea paracheliformis Ledoyer, 1984
• Abyssicaprella galatheae McCain, 1966
• Abyssododecas styx Takeuchi, Tomikawa & Lindsay, 2016
• Abyssogammarus calceolatus Sowinsky, 1915 accepted as Barguzinia calceolata (Sowinsky, 1915)
• Abyssogammarus echinatus Bazikalova, 1935
• Abyssogammarus gracilis Sowinsky, 1915
• Abyssogammarus gracilis minor Bazikalova, 1945 accepted as Abyssogammarus minor Bazikalova, 1945
• Abyssogammarus kusnezovi Sowinsky, 1915 accepted as Eulimnogammarus kusnezowi (Sowinsky, 1915)
• Abyssogammarus lydiae Bazikalova, 1935 accepted as Bathygammarus lydiae (Bazikalova, 1935)
• Abyssogammarus minor Bazikalova, 1945
• Abyssogammarus petersii (Dybowsky, 1874) accepted as Paragarjajewia petersii (Dybowsky, 1874)
• Abyssogammarus sarmatus (Dybowsky, 1874)
• Abyssogammarus sarmatus echinatus Bazikalova, 1935 accepted as Abyssogammarus echinatus Bazikalova, 1935
• Abyssogammarus semenkewitschi Sowinsky, 1915 accepted as Bathygammarus semenkewitschi (Sowinsky, 1915)
• Abyssogammarus swartschewskii Sowinsky, 1915 accepted as Laxmannia swartschewskii (Sowinsky, 1915)
• Abyssogammarus unguisetosus Sowinsky, 1915 accepted as Bathygammarus unguisetosus (Sowinsky, 1915)
• Abyssorchomene abyssorum (Stebbing, 1888)
• Abyssorchomene charcoti (Chevreux, 1912)
• Abyssorchomene chevreuxi (Stebbing, 1906)
• Abyssorchomene distinctus (Birstein & Vinogradov, 1960)
• Abyssorchomene gerulicorbis (Shulenberger & Barnard, 1976)
• Abyssorchomene musculosus (Stebbing, 1888)
• Abyssorchomene nodimanus (Walker, 1903)
• Abyssorchomene patriciae Hendrycks & De Broyer, 2022
• Abyssorchomene pelagicus (Birstein & Vinogradov, 1960)
• Abyssorchomene plebs (Hurley, 1965) represented as Pseudorchomene plebs (Hurley, 1965)
• Abyssorchomene rossi (Walker, 1903) represented as Pseudorchomene rossi (Walker, 1903)
• Abyssorchomene scotianensis (Andres, 1983)
• Abyssorchomene shannonae Hendrycks & De Broyer, 2022
• Acanthechinus tricarinatus (Stebbing, 1883) accepted as Actinacanthus tricarinatus (Stebbing, 1883)
• Acanthogammarus (Acanthogammarus) albus (Garjajeff, 1901) accepted as Acanthogammarus (Acanthogammarus) godlewskii (Dybowsky, 1874)
• Acanthogammarus (Acanthogammarus) godlewskii (Dybowsky, 1874)
• Acanthogammarus (Acanthogammarus) godlewskii brevispinus Dorogostaisky, 1922 accepted as Diplacanthus brevispinus (Dorogostaisky, 1922)
• Acanthogammarus (Acanthogammarus) gracilispinus Tachteew, 2001
• Acanthogammarus (Ancyracanthus) lappaceus Tachteew, 2001
• Acanthogammarus (Ancyracanthus) longispinus Tachteew, 2001 accepted as Acanthogammarus (Ancyracanthus) lappaceus Tachteew, 2001
• Acanthogammarus (Ancyracanthus) maculosus Dorogostaisky, 1930
• Acanthogammarus (Ancyracanthus) victorii (Dybowsky, 1874)
• Acanthogammarus albus (Garjajeff, 1901) accepted as Acanthogammarus (Acanthogammarus) godlewskii (Dybowsky, 1874)
• Acanthogammarus brevispinus Dorogostaisky, 1922 accepted as Diplacanthus brevispinus (Dorogostaisky, 1922)
• Acanthogammarus flavus (Garjajeff, 1901) accepted as Oxyacanthus flavus (Garjajeff, 1901)
• Acanthogammarus flavus curtus Bazikalova, 1945 accepted as Oxyacanthus curtus (Bazikalova, 1945)
• Acanthogammarus flavus rodionowi Dorogostaisky, 1922 accepted as Oxyacanthus rodionowi (Dorogostaisky, 1922)
• Acanthogammarus flavus sowinskii Bazikalova, 1945 accepted as Oxyacanthus sowinskii (Bazikalova, 1945)
• Acanthogammarus korotneffii (Garjajeff, 1901) accepted as Oxyacanthus korotneffii (Garjajeff, 1901)
• Acanthogammarus labbei Chevreux, 1903 accepted as Cornugammarus maximus (Garjajeff, 1901)
• Acanthogammarus maximus (Garjajeff, 1901) accepted as Cornugammarus maximus (Garjajeff, 1901)
• Acanthogammarus platycarinus Sowinsky, 1915 accepted as Carinurus platycarinus (Sowinsky, 1915)
• Acanthogammarus platycarinus var. microphthalmus Sowinsky, 1915 accepted as Carinurus microphthalmus (Sowinsky, 1915)
• Acanthogammarus radoschkowskii (Dybowsky, 1874) accepted as Coniurus radoschkowskii (Dybowsky, 1874)
• Acanthogammarus subbrevispinus Bazikalova, 1945 accepted as Oxyacanthus subbrevispinus (Bazikalova, 1945)
• Acanthogrubia uncinata Stout, 1912 accepted as Cymadusa uncinata (Stout, 1912)
• Acanthohaustorius bousfieldi Frame, 1980
• Acanthohaustorius intermedius Bousfield, 1965
• Acanthohaustorius millsi Bousfield, 1965
• Acanthohaustorius pansus Thomas & J.L. Barnard, 1984
• Acanthohaustorius shoemakeri Bousfield, 1965
• Acanthohaustorius similis Frame, 1980
• Acanthohaustorius spinosus (Bousfield, 1962)
• Acanthohaustorius uncinus Foster, 1989
• Acanthonotozoma australis Chilton, 1912 accepted as Alexandrella australis (Chilton, 1912)
• Acanthonotozoma cristatum (Ross, 1835)
• Acanthonotozoma dunbari Just, 1978
• Acanthonotozoma gurjanovae Just, 1978
• Acanthonotozoma inflatum (Krøyer, 1842)
• Acanthonotozoma magnum Just, 1978
• Acanthonotozoma monodentatum Kudrjaschov, 1965
• Acanthonotozoma portum (Kunkel, 1910)
• Acanthonotozoma rusanovae Bryazgin, 1974
• Acanthonotozoma serratum (O. Fabricius, 1780)
• Acanthonotozoma sinuatum Just, 1978