[Class] Cestoda - tapeworms see Infraclass Cestoda
   Order Diphyllobothriidea Kuchta, Scholz, Brabec & Bray, 2008
     Family Diphyllobothriidae Lühe, 1910
       Genus Ligula Bloch, 1782
         1 Ligula intestinalisᵀ (Linnaeus, 1758)
         2 Ligula colymbi Zeder, 1803
         3 Ligula alternans Rudolphi, 1810
         4 Ligula nemachili (Dubinina, 1957)
         5 Ligula pavlovskii Dubinina, 1959