living organisms see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
   Superkingdom Eukaryotae see Domain Eukaryota Chatton, 1925
     Kingdom Animalia Linnaeus, 1758 - animals
       Subkingdom Eumetazoa Butschli, 1910 see [unranked] Eumetazoa Bütschli, 1910
         Phylum Arthropoda Siebold, 1848 - arthropods
           Subphylum Crustacea Brünnich, 1772 - crustaceans see Superclass Crustacea Pennant, 1777
             Subclass Malacostraca Latreille, 1802 see Class Malacostraca Latreille, 1802
               Superorder Peracarida Calman, 1904
                 Order Amphipoda Latreille, 1816 - amphipods
                   Suborder Gammaridea Latreille, 1802
                     Superfamily Corophioidea Leach, 1814 see Infraorder Corophiida Leach, 1814 () sensu Lowry & Myers, 2013
                       Family Photidae Boeck, 1871
                         01 Genus Ampelisciphotis Pirlot, 1938
                         02 Genus Bogenfelsia J.L. Barnard, 1962
                         03 Genus Cedrophotis Barnard, 1967
                         04 Genus Cheirophotis
                         05 Genus Chevalia Walker, 1904
                         06 Genus Gammaropsis Lilljeborg, 1855
                         07 Genus Goesia Boeck, 1871
                         08 Genus Haplocheira Haswell, 1879
                         09 Genus Kermystheus Barnard, 1962
                         10 Genus Kuphocheira Barnard, 1931
                         11 Genus Megamphopus Norman, 1869
                         12 Genus Microphotis Ruffo, [1953]
                         13 Genus Microprotopus Norman, 1867
                         14 Genus Pareurystheus Tsvetkova, 1977
                         15 Genus Photis Krøyer, 1842
                         16 Genus Podoceropsis Boeck, 1861
                         17 Genus Protomedeia Krøyer, 1842