[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 Ophiotaenia La Rue, 1911 Ophiotaenia crotali Lopez-Neyra & Diaz-Ungria, 1958