Malacostraca Latreille, 1802
Acanthogammaridae Garjajeff, 1901
Acanthonotozomellidae Coleman & Barnard, 1991
Acanthosoma Ross, 1835
Aetiopedesidae Myers & Lowry, 2003
Alicellidae Lowry & De Broyer, 2008
Allocrangonyctidae Holsinger, 1989
Amaryllididae Lowry & Stoddart, 2002
Amathia Rathke, 1837
Amathillopsidae Pirlot, 1934
Ampeliscidae Costa, 1857
Amphilochidae Boeck, 1871
Amphithoe Leach, 1814
Ampithoidae Stebbing, 1899
Anamixidae Stebbing, 1897
Anisogammaridae Bousfield, 1977
Anisopus Templeton, 1837
Aoridae Walker, 1908
Apocyamus Margolis, McDonald & Bousfield, 2000
Argissidae Walker, 1904
Aristiidae Lowry & Stoddart, 1997
Artesiidae Holsinger, 1980
Atylidae Lilljeborg, 1865
Austrohyalella Bousfield, 1996
Axelboekia
Baikalogammaridae Kamaltynov, 2001
Bateidae Stebbing, 1906
Behningiellidae Kamaltynov, 2001
Bellia Bate, 1851
Biancolinidae Barnard, 1972
Bogidiellidae Hertzog, 1936
Bolttsiidae Barnard & Karaman, 1987
Boreohyale Bousfield & Hendrycks, 2002
Calliopiidae Sars, 1893
Caprelloidea Leach, 1814
Carangoliopsidae Bousfield, 1977
Cardenioidae Barnard & Karaman, 1987
Caspicolidae Birstein, 1945
Catapleustes Bousfield & Hendrycks, 1994
Cebocaridae Lowry & Stoddart, 2011
Ceinidae Barnard, 1972
Cheidae Thurston, 1982
Cheirocratidae Ren, 2006
Cheluridae Allman, 1847
Chevaliidae Myers & Lowry, 2003
Chiltoniidae J.L. Barnard, 1972
Clarenciidae Barnard & Karaman, 1987
Colomastigidae Stebbing, 1899
Condukiidae Barnard & Drummond, 1982
Corophiidae Leach, 1814
Crangonyctidae Bousfield, 1973
Cressidae Stebbing, 1899
Crymostygidae Kristjánsson & Svavarsson, 2004
Cyclocaridae Lowry & Stoddart, 2011
Cylindrimolaris Ortiz & Lalana, 1999
Cyphocarididae Lowry & Stoddart, 1997
Cyproideidae Barnard, 1974
Cystisomatoidea Willemöes-Suhm, 1875
Dexaminidae Leach, 1814
Didymocheliidae Bellan-Santini & Ledoyer, 1986
Dikwidae Coleman & Barnard, 1991
Diplohyale Bousfield & Hendrycks, 2002
Dogielinotidae Gurjanova, 1953
Driope Spence Bate, 1862
Dryope Spence Bate, 1862
Electicus Lowry & Stoddart, 1997
Endevouridae Lowry & Stoddart, 1997
Eophliantidae Sheard, 1936
Epimeriidae Boeck, 1871
Eulimnogammaridae Kamaltynov, 1999
Eurytheneidae Stoddart & Lowry, 2004
Eusiridae Stebbing, 1888
Exoedicerotidae Barnard & Drummond, 1982
Gammaracanthidae Bousfield, 1989
Gammarellidae Bousfield, 1977
Gammaridae Latreille, 1802
Gammaroporeiidae Bousfield, 1979
Hadziidae Karaman, 1943
Haustoriidae Stebbing, 1906
Hela Boeck, 1861
Helella Sars, 1883
Hirondelleidae Lowry & Stoddart, 2010
Humilomoera Staude, 1995
Hyalellidae Bulycheva, 1957
Hyalidae Bulycheva, 1957
Hyperiopsidae Bovallius, 1886
Iciliidae Dana, 1849
Ingolfiellidae Hansen, 1903
Ipanemidae Barnard & Thomas, 1988
Iphigenellidae Kamaltynov, 2001
Iphimediidae Boeck, 1871
Ischyroceridae Stebbing, 1899
Izinkalidae Lowry & Stoddart, 2010
Kamakidae Myers & Lowry, 2003
Kergueleniidae Lowry & Stoddart, 2010
Kotumsaridae Missouli, Holsinger & Reddy, 2007
Kuriidae Walker & Scott, 1903
Lafystiidae Sars, 1893
Lanceoloidea Bovallius, 1887
Laphystiopsidae Stebbing, 1899
Lepechinellidae Schellenberg, 1926
Lepidepecreellidae Stoddart & Lowry, 2010
Leptochela Boeck, 1876
Leptohyale Bousfield & Hendrycks, 2002
Leucothoidae Dana, 1852
Liljeborgiidae Stebbing, 1899
Luciobliviidae Tomikawa, 2007
Lycaeopsoidea Chevreux, 1913
Lysianassidae Dana, 1849
Macrohectopidae Sowinsky, 1915
Macrohectopodidae Sowinsky, 1915
Maeridae Krapp-Schickel, 2008
Maxillipiidae Ledoyer, 1973
Megaluropidae Thomas & Barnard, 1986
Melitidae Bousfield, 1973
Melphidippidae Stebbing, 1899
Mesocyamus Margolis, McDonald & Bousfield, 2000
Mesogammaridae Bousfield, 1977
Mesohyalella Bousfield, 1996
Metacrangonyctidae Boutin & Missouli, 1988
Metaingolfiellidae Ruffo, 1969
Microprotopidae Myers & Lowry, 2003
Micruropidae Kamaltynov, 1999
Micruropodidae Kamaltynov, 1999
Miramassidae
Moanamoera Staude, 1995
Najnidae Barnard, 1972
Neomegamphopidae Myers, 1981
Neoniphargidae Bousfield, 1977
Nihotungidae Barnard, 1972
Niphargidae Bousfield, 1977
Normania Boeck, 1871
Ochlesidae Stebbing, 1910
Odiidae Coleman & Barnard, 1991
Oedicerotidae Lilljeborg, 1865
Opisidae Lowry & Stoddart, 1995
Orchestiidae
Orcinocyamus Margolis, McDonald & Bousfield, 2000
Pachynidae Lowry & Stoddart, (in press)
Pachyschesidae Kamaltynov, 1999
Pagetinidae Barnard, 1931
Palasseidae
Pallaseidae Tachteew, 2000
Paracalliopidae Barnard & Karaman, 1982
Paracalliopiidae Barnard & Karaman, 1982
Paracrangonyctidae Bousfield, 1982
Paragammaropsidae Myers & Lowry, 2003
Paraleptamphopidae Bousfield, 1983
Paraleptamphopiidae
Paraliscidae
Paramelitidae Bousfield, 1977
Paraneohela Oldevig, 1959
Pardaliscidae Boeck, 1871
Perthiidae Williams & Barnard, 1988
Phliantidae Stebbing, 1899
Phoxocephalidae Sars, 1891
Phoxocephalopsidae Barnard & Drummond, 1982
Phreatogammaridae Bousfield, 1982
Phronimoidea Rafinesque, 1815
Phtisicoidea Vassilenko, 1968
Platyischnopidae Barnard & Drummond, 1979
Platysceloidea Bate, 1862
Pleioplateidae J.L. Barnard, 1978
Pleustidae Buchholz, 1874
Plioplateidae Barnard, 1978
Plioplateiidae
Podoprionidae Lowry & Stoddart, 1996
Poeckilogammarus
Polichinellobizarrocomic
Pontogammaridae Bousfield, 1977
Pontogeneiidae Stebbing, 1906
Pontoporeiidae Dana, 1853
Priscillinidae
Priscillinidae cv. 'Udekem d'
Priscomilitaridae Hirayama, 1988
Prolanceolidae Zeidler, 2009
Pseudamphilochidae Schellenberg, 1931
Pseudocrangonyctidae Holsinger, 1989
Pseudoniphargidae
Rakiroidae Myers & Lowry, 2003
Regaliidae Lowry, 2006
Rhithromoera Staude, 1995
Salentinellidae Bousfield, 1977
Sanchoidae Lowry, 2006
Scinoidea Stebbing, 1888
Scopelocheiridae Lowry & Stoddart, 1997
Sebidae Walker, 1908
Seborgiidae Holsinger, 1980
Sicafodiidae Just, 2004
Sinurothoidae Ren, 1999
Sophrosynidae Lowry & Stoddart, 2010
Spindlerella Brandt & Vassilenko, 1995
Stegocephalidae Dana, 1853
Stenothoidae Boeck, 1871
Sternophysingidae Holsinger, 1992
Stilipedidae Holmes, 1908
Sulcator Bate, 1854
Synopiidae Dana, 1853
Talitridae Rafinesque, 1815
Temnophliantidae Griffiths, 1975
Thersites Bate, 1857
Thoriellidae Lowry & Stoddart, 2011
Thurstonellidae Lowry & Zeidler, 2008
Transitroides Bousfield & Poinar, 1994
Trischizostomatidae Lilljeborg, 1865
Tryphantidae
Tulearidae Ledoyer, 1979
Typhlogammaridae Bousfield, 1977
Unciolidae Myers & Lowry, 2003
Uristidae Hurley, 1963
Urohaustoriidae Barnard & Drummond, 1982
Urothoidae Bousfield, 1978
Valettidae Stebbing, 1888
Valettiidae Stebbing, 1888
Variogammarus Tachteew, 1995
Vibilioidea Dana, 1853
Vicmusiidae Just, 1990
Vitjazianidae Birstein & Vinogradov, 1955
Wandinidae Lowry & Stoddart, 1990
Zobrachoidae Barnard & Drummond, 1982