[Class] Cestoda - tapeworms see Infraclass Cestoda
   Order Onchoproteocephalidea Caira, Jensen, Waeschenbach, Olson & Littlewood, 2014
     Family Proteocephalidae La Rue, 1911
       Subfamily Proteocephalinae La Rue, 1911 [non-monophyletic]
         Genus Frezella Alves, de Chambrier, Scholz & Luque, 2015 [monotypic]
           1 Frezella vaucheriᵀ Alves, de Chambrier, Scholz & Luque, 2015