Phylum Annelida Lamarck, 1809 - segmented worms
   Class Polychaeta Grube, 1850 - polychaetes
     Order Eunicida Ushakov, 1955
       Superfamily Eunicoidea
         Family Dorvilleidae Chamberlin, 1919
           Genus Arenotrocha Westheide & von Nordheim, 1985