Harpacticoida G. O. Sars, 1903
Abnitocrella Karanovic, 2006
Ameira Boeck, 1864
Ameiropsis G. O. Sars, 1907
Ameiropsyllus Huys, 2009
Anoplosoma Sars, 1911
Anoplosomella Strand, 1929
Archinitocrella Karanovic, 2006
Biameiropsis Karanovic, 2006
Eduardonitocrella Karanovic & Hancock, 2009
Filexilia Conroy-Dalton & Huys, 1997
Glabrameira Conroy-Dalton & Huys, 1997
Gordanitocrella Karanovic & Hancock, 2009
Haifameira Por, 1964
Hirtaleptomesochra Karanovic, 2004
Inermipes Lee & Huys, 2002
Interleptomesochra Lang, 1965
Karllangia Noodt, 1964
Kimberleynitocrella Karanovic & Hancock, 2009
Leptameira Huys, 2009
Leptomesochra G. O. Sars, 1911
Limameira Soyer, 1974
Lucionitocrella Karanovic & Hancock, 2009
Malacopsyllus G. O. Sars, 1911
Megastygonitocrella Karanovic & Hancock, 2009
Neonitocrella Lee & Huys, 2002
Nitocra Boeck, 1864
Nitocrella Chappuis, 1923
Nitocrellopsis Petkovski, 1976
Nitokra Boeck, 1864
Nitrocrellopsis Cottarelli & Forniz, 1993
Novanitocrella Karanovic, 2004
Paraleptomesochra Wells, 1967
Parameiropsis Becker, 1974
Paranitocrella Tang & Knott, 2009
Parapseudoleptomesochra Lang, 1965
Parevansula Gulle & Soyer, 1966
Praeleptomesochra Lang, 1965
Proameira Lang, 1948
Psammameira Noodt, 1952
Psammoleptomesochra Mielke, 1994
Psammonitocrella Rouch, 1992
Pseudameira G. O. Sars, 1911
Pseudoameiropsis Pallares, 1982
Pseudoleptomesochra Lang, 1965
Pseudoleptomesochrella Lang, 1965
Psyllocamptus T. Scott, 1899
Raoleptomesochra Karanovic, 2004
Reidnitocrella Karanovic & Hancock, 2009
Sarsameira C. B. Wilson, 1924
Sicameira Klie, 1950
Stenocopia Sars, 1907
Stygonitocrella Petkovski, 1976
