[Class] Cestoda - tapeworms see Infraclass Cestoda Order Onchoproteocephalidea Caira, Jensen, Waeschenbach, Olson & Littlewood, 2014 Family Proteocephalidae La Rue, 1911 Subfamily Corallobothriinae Freze, 1965 [non-monophyletic] Genus Megathylacoides Jones, Kerley & Sneed, 1954 Megathylacoides giganteumᵀ (Essex, 1928)