Annelida Lamarck, 1809 - segmented worms "polychaetes" see Class Polychaeta Grube, 1850 Scolecida G.W. Rouse & K. Fauchald, 1997 see Order Scolecida Rouse & Fauchald, 1997 Family Scalibregmatidae Malmgren, 1867 Genus Sclerocheilus Grube, 1853 Sclerocheilus antarcticus Ashworth, 1915