[Class] Cestoda - tapeworms see Infraclass Cestoda
   Order Onchoproteocephalidea Caira, Jensen, Waeschenbach, Olson & Littlewood, 2014
     Family Proteocephalidae La Rue, 1911
       Subfamily Monticelliinae Mola, 1929 [non-monophyletic]
         01 Genus Ageneiella de Chambrier & Vaucher, 1999 [monotypic]
         02 Genus Chambriella Rego, Chubb & Pavanelli, 1999 [monotypic]
         03 Genus Choanoscolex La Rue, 1911 [monotypic]
         04 Genus Goezeella Fuhrmann, 1916
         05 Genus Manaosia Woodland, 1935 [monotypic]
         06 Genus Monticellia La Rue, 1911
         07 Genus Regoella Arredondo, de Chambrier & Gil de Pertierra, 2013 [monotypic]
         08 Genus Riggenbachiella Alves, de Chambrier, Luque & Scholz, 2017
         09 Genus Spasskyellina Freze, 1965
         10 Genus Spatulifer Woodland, 1934