Hydrachnidia Krantz, 1978 - water mites
   Superfamily Arrenuroidea Thor, 1900
     Family Momoniidae Viets, 1926
       Subfamily Momoniinae Viets, 1926
         1 Genus Austromomonia Harvey, 1998
         2 Genus Hesperomomonia Harvey, 1998
         3 Genus Momonia Halbert, 1906
         4 Genus Momoniella Viets, 1931
         5 Genus Momonisia Petrova, 1974
         6 Genus Neomomonia Cook, 1968
         7 Genus Notomomonia Cook, 1988
         8 Genus Partidomomonia Cook, 1985