Phylum Annelida Lamarck, 1809 - segmented worms Class Polychaeta Grube, 1850 - polychaetes Order Capitellida Fauchald, 1977 see Order Scolecida Rouse & Fauchald, 1997 Family Arenicolidae Johnston, 1835 Genus Arenicolides Mesnil, 1898