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
                     Genus Sapha Marcus, 1959
                       Sapha amicorum E. Marcus, 1959