Phylum Arthropoda Siebold, 1848 - arthropods
Subphylum Crustacea Brünnich, 1772 - crustaceans
see Superclass Crustacea Pennant, 1777
Class Malacostraca Latreille, 1802
Subclass Eumalacostraca Grobben, 1892
Superorder Peracarida Calman, 1904
Order Amphipoda Latreille, 1816 - amphipods
Suborder Gammaridea Latreille, 1802
001 Family Acanthogammaridae Garjajeff, 1901
002 Family Acanthonotozomellidae Coleman & Barnard, 1991
see Family Acanthonotozomatidae Stebbing, 1906
003 Family Allocrangonyctidae Holsinger, 1989
004 Family Amathillopsidae Pirlot, 1934
005 Family Ampeliscidae Costa, 1857
006 Family Amphilochidae Boeck, 1871
007 Family Ampithoidae Stebbing, 1899
008 Family Anamixidae Stebbing, 1897
see Family Leucothoidae Dana, 1852
009 Family Anisogammaridae Bousfield, 1977
010 Family Aoridae Stebbing, 1899
011 Family Argissidae Walker, 1904
012 Family Aristiidae Lowry & Stoddart, 1997
013 Family Artesiidae Holsinger, 1980
014 Family Bateidae Stebbing, 1906
015 Family Biancolinidae J.L. Barnard, 1972
016 Family Bogidiellidae Hertzog, 1936
017 Family Bolttsiidae Barnard & Karaman, 1987
018 Family Calliopidae Sars, 1893, nom. illeg.
see Family Calliopiidae G.O. Sars, 1895
019 Family Carangoliopsidae Bousfield, 1977
020 Family Cardenioidae Barnard & Karaman, 1987
021 Family Caspicolidae Birstein, 1945
022 Family Ceinidae J.L. Barnard, 1972
023 Family Cheidae Thurston, 1982
024 Family Cheluridae Allman, 1847
025 Family Clarenciidae Barnard & Karaman, 1987, nom. illeg.
see Family Thurstonellidae Lowry & Zeidler, 2008
026 Family Colomastigidae Stebbing, 1899
027 Family Condukiidae Barnard & Drummond, 1982
028 Family Corophiidae Leach, 1814
029 Family Crangonyctidae Bousfield, 1973
030 Family Cressidae Stebbing, 1899
031 Family Cyphocarididae Lowry & Stoddart, 1997
032 Family Cyproideidae J.L. Barnard, 1974
033 Family Dexaminidae Leach, 1814
034 Family Didymocheliidae Bellan-Santini & Ledoyer, 1986
035 Family Dikwidae Coleman & Barnard, 1991
036 Family Dogielinotidae Gurjanova, 1953
037 Family Dulichiidae Dana, 1849
038 Family Endevouridae Lowry & Stoddart, 1997
039 Family Eophliantidae Sheard, 1936
040 Family Epimeriidae Boeck, 1871
041 Family Eusiridae Stebbing, 1888
042 Family Exoedicerotidae Barnard & Drummond, 1982
043 Family Gammaracanthidae Bousfield, 1989
044 Family Gammarellidae Bousfield, 1977
045 Family Gammaridae Latreille, 1802
046 Family Gammaroporeiidae Bousfield, 1979
047 Family Hadziidae S. Karaman, 1943
048 Family Haustoriidae Stebbing, 1906
049 Family Hyalellidae Bulycheva, 1957
see Subfamily Hyalellinae Bulycheva, 1957
050 Family Hyalidae Bulycheva, 1957
051 Family Hyperiopsidae Bovallius, 1886
052 Family Iciliidae Dana, 1849
053 Family Ipanemidae Barnard & Thomas, 1988
054 Family Iphimediidae Boeck, 1871
055 Family Isaeidae Dana, 1853
056 Family Ischyroceridae Stebbing, 1899
057 Family Kuriidae J.L. Barnard, 1964
058 Family Laphystiidae Sars, 1893
see Family Lafystiidae Sars, 1893
059 Family Laphystiopsidae Stebbing, 1899
060 Family Lepechinellidae Schellenberg, 1926
see Family Atylidae Lilljeborg, 1865
061 Family Leucothoidae Dana, 1852
062 Family Liljeborgiidae Stebbing, 1899
063 Family Lysianassidae Dana, 1849
064 Family Macrohectopidae Sowinsky, 1915
see Family Macrohectopodidae Sowinsky, 1915
065 Family Maxillipiidae Ledoyer, 1973
066 Family Megaluropidae Thomas & Barnard, 1986
067 Family Melitidae Bousfield, 1973
068 Family Melphidippidae Stebbing, 1899
069 Family Mesogammaridae Bousfield, 1977
070 Family Metacrangonyctidae Boutin & Missouli, 1988
071 Family Micruropidae Kamaltynov, 1999
see Family Micruropodidae Kamaltynov, 1999
072 Family Najnidae J.L. Barnard, 1972
see Subfamily Najninae J.L. Barnard, 1972
073 Family Neomegamphopidae Myers, 1981
074 Family Neoniphargidae Bousfield, 1977
075 Family Nihotungidae J.L. Barnard, 1972
076 Family Niphargidae Bousfield, 1977
077 Family Ochlesidae Stebbing, 1910
078 Family Odiidae Coleman & Barnard, 1991
079 Family Oedicerotidae Lilljeborg, 1865
080 Family Opisidae Lowry & Stoddart, 1995
081 Family Pachyschesidae Kamaltynov, 1999
082 Family Pagetinidae K.H. Barnard, 1931
083 Family Paracalliopidae Barnard & Karaman, 1982
084 Family Paracrangonyctidae Bousfield, 1982
085 Family Paraleptamphopidae Bousfield, 1983
086 Family Paramelitidae Bousfield, 1977
087 Family Pardaliscidae Boeck, 1871
088 Family Perthiidae Williams & Barnard, 1988
089 Family Phliantidae Stebbing, 1899
090 Family Phoxocephalidae G.O. Sars, 1891
091 Family Phoxocephalopsidae Barnard & Drummond, 1982
092 Family Phreatogammaridae Bousfield, 1982
093 Family Platyischnopidae Barnard & Drummond, 1979
094 Family Pleustidae Buchholz, 1874
095 Family Plioplateidae J.L. Barnard, 1978
096 Family Podoceridae Leach, 1814
097 Family Podoprionidae Lowry & Stoddart, 1996
098 Family Pontogammaridae Bousfield, 1977
099 Family Pontoporeiidae Dana, 1853
100 Family Priscomilitaridae Hirayama, 1988
101 Family Pseudamphilochidae Schellenberg, 1931
102 Family Pseudocrangonyctidae Holsinger, 1989
103 Family Salentinellidae Bousfield, 1977
104 Family Scopelocheiridae Lowry & Stoddart, 1997
105 Family Sebidae Walker, 1908
106 Family Sinurothoidae Ren, 1999
107 Family Stegocephalidae Dana, 1853
108 Family Stenothoidae Boeck, 1871
109 Family Sternophysingidae Holsinger, 1992
110 Family Stilipedidae Holmes, 1908
111 Family Synopiidae Dana, 1853
112 Family Talitridae Rafinesque, 1815
113 Family Temnophliantidae Griffiths, 1975
114 Family Trischizostomatidae Lilljeborg, 1865
see Family Lysianassidae Dana, 1849
115 Family Tulearidae Ledoyer, 1979
116 Family Typhlogammaridae Bousfield, 1977
117 Family Uristidae Hurley, 1963
118 Family Urohaustoriidae Barnard & Drummond, 1982
119 Family Urothoidae Bousfield, 1978
120 Family Valettidae Stebbing, 1888
see Family Valettiidae Stebbing, 1888
121 Family Vicmusiidae Just, 1990
122 Family Vitjazianidae Birstein & Vinogradov, 1955
123 Family Wandinidae Lowry & Stoddart, 1990
124 Family Zobrachoidae Barnard & Drummond, 1982