Historic illustration, tablet 17, title Siphonophorae, Jellyfish, name Porpema, Discalia medusina, side view, Ernst Haeckel, Kunstformen der Natur, "Art Forms in Nature".
Historic illustration, tablet 17, title Siphonophorae, Jellyfish, name Porpema, Discalia medusina, side view, Ernst Haeckel, Kunstformen der Natur, "Art Forms in Nature"