[Class] Cestoda - tapeworms see Infraclass Cestoda Order Diphyllobothriidea Kuchta, Scholz, Brabec & Bray, 2008 Family Diphyllobothriidae Lühe, 1910 Genus Adenocephalus Nybelin, 1931 [monotypic] Adenocephalus pacificusᵀ Nybelin, 1931