Phylum Annelida Lamarck, 1809 - segmented worms Class Polychaeta Grube, 1850 - polychaetes Order Terebellida Rouse & Fauchald, 1977 Family Ampharetidae Malmgren, 1865 Subfamily Ampharetinae (Malmgren, 1865) Chamberlin, 1919 Genus Sosanopsis Hessle, 1917