Cnidaria Hatschek, 1888 - cnidarians Class Hydrozoa Owen, 1843 Order Siphonophora Eschscholtz, 1829 - siphonophorans Family Physaliidae Brandt, 1835 Genus Physalia Lamarck, 1801 Physalia physalis (C. Linnaeus, 1758) Totton, 1965