[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 Euzetiella de Chambrier, Rego & Vaucher, 1999 [monotypic]
           1 Euzetiella tetraphylliformisᵀ de Chambrier, Rego & Vaucher, 1999