Cnidaria Hatschek, 1888 - cnidarians Class Scyphozoa Goette, 1887 - jellyfish Order Rhizostomae see Order Rhizostomeae Cuvier, 1799 Family Cassiopeidae L. Agassiz, 1862 1 Genus Cassiopeia Péron & Lesueur, 1810 see Genus Cassiopea Péron & Lesueur, 1810