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
         01 Genus Asclerocheilus Ashworth, 1901
         02 Genus Cryptosclerocheilus Blake, 1972
         03 Genus Hyboscolex Schmarda, 1861
         04 Genus Kebuita Chamberlin, 1919
         05 Genus Neolipobranchius Hartman & Fauchald, 1971
         06 Genus Oligobregma Kudenov & Blake, 1978
         07 Genus Parasclerocheilus Fauvel, 1928
         08 Genus Polyphysia Quatrefages, 1865
         09 Genus Pseudoscalibregma Ashworth, 1901
         10 Genus Scalibregma Rathke, 1843
         11 Genus Scalibregmella Hartman & Fauchald, 1971
         12 Genus Scalibregmides Hartmann-Schröder, 1965
         13 Genus Sclerocheilus Grube, 1853
         14 Genus Sclerobregma Hartman, 1965
         15 Genus Axiokebutia
         16 Genus Speleobregma Bertelsen, 1986