Annelida Lamarck, 1809 - segmented worms "polychaetes" see Class Polychaeta Grube, 1850 Palpata G.W. Rouse & K. Fauchald, 1997 Canalipalpata G.W. Rouse & K. Fauchald, 1997 Spionida see Order Spionida Rouse & Fauchald, 1997 Genus Apistobranchus Levinsen, 1883[1884]