living organisms see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
Count: 4k;54p;156c;911o;7123f;17,575g;4762s;36ss;8v;19; ‡1f;6g;7s;1ss; †1c;10o;10f;19g;1s
   Superkingdom Eukaryotae see Domain Eukaryota Chatton, 1925
  Count: [c] 2k;51p;154c;900o;7001f;17,209g;4300s;33ss;8v; ‡1f;6g;7s;1ss; †1c;10o;10f;19g;1s
     Kingdom Animalia Linnaeus, 1758 - animals
    Count: [c] 38p;101c;595o;5766f;13,419g;3233s;32ss;3v; ‡1f;6g;7s;1ss; †1c;9o;10f;16g;1s
       Subkingdom Eumetazoa Butschli, 1910 see [unranked] Eumetazoa Bütschli, 1910
      Count: [c] 29p;70c;458o;5094f;11,476g;2933s;31ss;3v; ‡1f;6g;7s;1ss; †1c;8o;10f;11g;1s
         Phylum Nemertea Schultze, 1851 - ribbon worms
        Count: [g] 2c;4o;38f;176g;409s;5ss
           Class Enopla Schultze, 1851
          Count: [g] 2o;29f;118g;318s;5ss
             Order Hoplonemertea Hubrecht, 1879
            Count: [g] 28f;117g;314s;5ss
               Suborder Monostilifera Brinkmann, 1917
              Count: [g] 7f;64g;184s;5ss
                 Family Amphiporidae McIntosh, 1874
                Count: [g] 15g;38s;2ss
                   Genus Amphiporusᵀ Ehrenberg, 1831
                  Count: 11s
                     Subgenus Intestinonemertes
                    Count: [*] 6s
                       1 Amphiporus (Intestinonemertes) islandicus
                      Count: -
                       2 Amphiporus (Intestinonemertes) punnetti
                      Count: -
                       3 Amphiporus (Intestinonemertes) septentrionalis
                      Count: -
                       4 Amphiporus (Intestinonemertes) appendiculatus
                      Count: -
                       5 Amphiporus (Intestinonemertes) iwatai Friedrich, 1970
                      Count: -
                       6 Amphiporus (Intestinonemertes) arcticus
                      Count: -