Kingdom Animalia Linnaeus, 1758 - animals
   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 Tanaidacea Dana, 1849 - tanaids
               Genus Apseudes Leach, 1814
               Genus Heterotanais Sars, 1882
               Genus Paratanais Dana, 1852
               Genus Tanais Latreille, 1831