Although most species glow green or blue, one species of siphonophore belonging to the genus Erenna was the first marine ...

Not only is it not a jellyfish, it's not even an "it," but a "they." The Portuguese man-of-war is a siphonophore, an animal made up of a colony of organisms working together. The man-of-war ...

In a groundbreaking discovery, scientists have documented the first appearance of the rare siphonophore Rhizophysa eysenhardtii in False Bay, extending the known range of this elusive organism by ...

The siphonophore is known as Rhizophysa eysenhardtii. Siphonophores are fascinating marine organisms belonging to the phylum Cnidaria, which includes jellyfish, corals, and sea anemones.