Phylum Annelida Lamarck, 1809 - segmented worms Class Polychaeta Grube, 1850 - polychaetes Order Capitellida Fauchald, 1977 see Order Scolecida Rouse & Fauchald, 1997 1 Family Capitellidae Grube, 1862 2 Family Arenicolidae Johnston, 1835 3 Family Maldanidae Malmgren, 1867 - bamboo worms