Cnidaria Hatschek, 1888 - cnidarians Class Scyphozoa Goette, 1887 - jellyfish Order Rhizostomae see Order Rhizostomeae Cuvier, 1799 Family Cepheidae Agassiz, 1862 Genus Cephea Péron & Lesueur, 1810 1 Cephea conifera Haeckel, 1880