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 Mollusca Linnaeus, 1758 - molluscs
           Class Gastropoda Cuvier, 1795 - snails and slugs
             Subclass Opisthobranchia Milne-Edwards, 1848 - opisthobranchs see Order Opisthobranchia Milne-Edwards, 1848
               Order Acochlidioidea Küthe, 1935 see Order Acochlidia Odhner, 1937
                 Superfamily Philinoglossacea see Superfamily Philinoidea Gray, 1850 (1815)
                   Family Philinoglossidae Hertling, 1932
                     1 Genus Philinoglossa Hertling, 1932
                     2 Genus Sapha Marcus, 1959