Phylum Annelida Lamarck, 1809 - segmented worms Class Polychaeta Grube, 1850 - polychaetes Order Phyllodocida Dales, 1962 Superfamily Nereidoidea see Suborder Nereidiformia Family Pilargiidae Saint-Joseph, 1899 see Family Pilargidae de Saint-Joseph, 1895 Subfamily Synelminae Salazar-Vallejo, 1986 1 Genus Synelmis Chamberlin, 1919