[Class] Cestoda - tapeworms see Infraclass Cestoda Order Onchoproteocephalidea Caira, Jensen, Waeschenbach, Olson & Littlewood, 2014 Family Proteocephalidae La Rue, 1911 Subfamily Monticelliinae Mola, 1929 [non-monophyletic] Genus Spatulifer Woodland, 1934 Spatulifer rugosa (Woodland, 1935)