[Kingdom] Animalia Linnaeus, 1758 - animals
   Grade Enterozoa
     Grade Cœlomata
       Phylum Appendiculata {Lankester}
         Branch Chætopoda
           Class Polychœta
             Order Vagantia
               1 Genus Nereis Linnaeus, 1758
               2 Genus Polynoe Savigny, 1818