Kingdom Animalia Linnaeus, 1758 - animals
   Phylum Arthropoda Siebold, 1848 - arthropods
     Subphylum Crustacea Brünnich, 1772 - crustaceans see Superclass Crustacea Pennant, 1777
       Class Branchiopoda Latreille, 1817 - branchiopods
         Order Cladocera Latreille, 1829 - water fleas see Suborder Cladocera Latreille, 1829
           Genus Anchistropus Sars, 1862
           Genus Daphnia Müller, 1785
           Genus Leptodora Lilljeborg, 1861
           Genus Moina Baird, 1850
           Genus Polyphemus Müller, 1776