Abacola Edwards, 1891 accepted as Metis Philippi, 1843 (source of synonymy)
Abacola Edwards, 1891 accepted as Metis Philippi, 1843 (basis of record)
Abasia Wilson, 1908 (extant flag source)
Abasia Wilson, 1908 (habitat flag source)
Abergasilus Hewitt, 1978 (habitat flag source)
Abergasilus Hewitt, 1978 (extant flag source)
Abscondicola Fiers, 1990 (extant flag source)
Abscondicola Fiers, 1990 (habitat flag source)
Abyssameira Itô, 1983 accepted as Argestes G.O. Sars, 1910 (source of synonymy)
Abyssameira Itô, 1983 accepted as Argestes G.O. Sars, 1910 (basis of record)
Abyssopontius Stock, 1985 (habitat flag source)
Abyssopontius Stock, 1985 (extant flag source)
Acaenomolgus Humes & Stock, 1972 (extant flag source)
Acaenomolgus Humes & Stock, 1972 (habitat flag source)
Acanthocanthopsis Heegaard, 1945 (habitat flag source)
Acanthocanthopsis Heegaard, 1945 (basis of record)
Acanthocanthopsis Heegaard, 1945 (extant flag source)
Acanthocanthopsis Heegaard, 1945 (source of synonymy)
Acanthochondria Oakley, 1930 (extant flag source)
Acanthochondria Oakley, 1930 (habitat flag source)
Acanthochondrites Oakley, 1930 (extant flag source)
Acanthochondrites Oakley, 1930 (habitat flag source)
Acanthocolax Vervoort, 1969 (habitat flag source)
Acanthocolax Vervoort, 1969 (extant flag source)
Acanthocyclops Kiefer, 1927 (extant flag source)
Acanthocyclops Kiefer, 1927 (habitat flag source)
Acanthodiaptomus Kiefer, 1932 (habitat flag source)
Acanthodiaptomus Kiefer, 1932 (extant flag source)
Acantholochus Cressey, 1984 (extant flag source)
Acantholochus Cressey, 1984 (habitat flag source)
Acanthomolgus Humes & Stock, 1972 (extant flag source)
Acanthomolgus Humes & Stock, 1972 (habitat flag source)
Acartia Dana, 1846 (extant flag source)
Acartiella Sewell, 1914 (extant flag source)
Acartiella Sewell, 1914 (habitat flag source)
Acartiidae G.O. Sars, 1903 (current name source)
Acartiidae G.O. Sars, 1903 (habitat flag source)
Acespadia Leigh-Sharpe, 1933 (habitat flag source)
Acespadia Leigh-Sharpe, 1933 (extant flag source)
Achelidelphys Lafargue & Laubier, 1977 (habitat flag source)
Achelidelphys Lafargue & Laubier, 1977 (extant flag source)
Achtheinus Wilson, 1908 (source of synonymy)
Achtheinus Wilson, 1908 (basis of record)
Achtheres Nordmann, 1832 (extant flag source)
Achtheres Nordmann, 1832 (habitat flag source)
Acontiophorus Brady, 1880 (extant flag source)
Acontiophorus Brady, 1880 (habitat flag source)
Acrenhydrosoma Lang, 1944 (habitat flag source)
Acrenhydrosoma Lang, 1944 (verified source for family)
Acrenhydrosoma Lang, 1944 (extant flag source)
Acrenhydrosoma Lang, 1948 accepted as Acrenhydrosoma Lang, 1944 (extant flag source)
Acrenhydrosoma Lang, 1948 accepted as Acrenhydrosoma Lang, 1944 (verified source for family)
Acrenhydrosoma Lang, 1948 accepted as Acrenhydrosoma Lang, 1944 (habitat flag source)
Acrocalanus Giesbrecht, 1888 (habitat flag source)
Acrocalanus Giesbrecht, 1888 (extant flag source)
Actinocletodes Fiers, 1986 (habitat flag source)
Actinocletodes Fiers, 1986 (extant flag source)
Actopsyllus Wells, 1967 (extant flag source)
Actopsyllus Wells, 1967 (habitat flag source)
Aculeopsis Huys & Willems, 1989 (habitat flag source)
Aculeopsis Huys & Willems, 1989 (extant flag source)
Acusicola Cressey, 1970 (habitat flag source)
Acusicola Cressey, 1970 (extant flag source)
Acutiramus Harris & Robertson, 1994 accepted as Porcellidium Claus, 1860 (basis of record)
Acutiramus Harris & Robertson, 1994 accepted as Porcellidium Claus, 1860 (source of synonymy)
Adelopoda Pennak, 1942 accepted as Tryphoema Monard, 1926 (source of synonymy)
Adelopoda Pennak, 1942 accepted as Tryphoema Monard, 1926 (basis of record)
Adenaplostoma Stock, 1993 (habitat flag source)
Adenaplostoma Stock, 1993 (extant flag source)
Adenopleurella Huys, 1990 (extant flag source)
Adenopleurella Huys, 1990 (habitat flag source)
Adenopleurellidae Huys, 1990 (habitat flag source)
Adenopleurellidae Huys, 1990 (current name source)
Adiaptomus Cooper, 1906 accepted as Paradiaptomus Daday, 1910 (basis of record)
Adranesius Hesse, 1865 accepted as Mychophilus Hesse, 1865 (basis of record)
Adranesius Hesse, 1865 accepted as Mychophilus Hesse, 1865 (source of synonymy)
Advena Kabata, 1979 accepted as Kabatazus Özdikmen, 2008 (habitat flag source)
Advena Kabata, 1979 accepted as Kabatazus Özdikmen, 2008 (extant flag source)
Aegisthidae Giesbrecht, 1893 (current name source)
Aegisthidae Giesbrecht, 1893 (habitat flag source)
Aegisthus Giesbrecht, 1891 (habitat flag source)
Aegisthus Giesbrecht, 1891 (extant flag source)
Aethon Krøyer, 1837 (extant flag source)
Aethon Krøyer, 1837 (habitat flag source)
Aetideidae Giesbrecht, 1892 (current name source)
Aetideidae Giesbrecht, 1892 (habitat flag source)
Aetideopsis G.O. Sars, 1903 (habitat flag source)
Aetideopsis G.O. Sars, 1903 (extant flag source)
Aetideus Brady, 1883 (extant flag source)
Aetideus Brady, 1883 (habitat flag source)
Afrocamptus Chappuis, 1932 (extant flag source)
Afrocamptus Chappuis, 1932 (habitat flag source)
Afrocyclopina Wells, 1967 (extant flag source)
Afrocyclopina Wells, 1967 (habitat flag source)
Afrocyclops G.O. Sars, 1927 (habitat flag source)
Afrocyclops G.O. Sars, 1927 (extant flag source)
Afrolaophonte Chappuis, 1960 (habitat flag source)
Afrolaophonte Chappuis, 1960 (extant flag source)
Afroleptastacus Huys, 1992 (habitat flag source)
Afroleptastacus Huys, 1992 (extant flag source)