Annelida Lamarck, 1809 - segmented worms
   "polychaetes" see Class Polychaeta Grube, 1850
     Scolecida G.W. Rouse & K. Fauchald, 1997 see Order Scolecida Rouse & Fauchald, 1997
       Family Arenicolidae Johnston, 1835
         1 Genus Arenicola Lamarck, 1801
         2 Genus Abarenicola Wells, 1959
         3 Genus Arenicolides Mesnil, 1898
         4 Genus Branchiomaldane Langerhans, 1881
         5 Genus †Archarenicola