Phylum Annelida Lamarck, 1809 - segmented worms Class Polychaeta Grube, 1850 - polychaetes Order Sabellida Fauchald, 1977 Family Sabellidae Malmgren, 1867 Subfamily Sabellinae (Malmgren, 1867) Rioja, 1923 Genus Pseudopotamilla Bush, 1904