Siphonophores are a class of invertebrates belonging to the phyla Cnidaria, which means they are related to corals, hydroids, and true jellyfish. Although a siphonophore appears to be a single organism, it is actually a colony composed of many individual animals. The majority of siphonophores are long and thin, consisting mostly of a clear gelatinous material, but all siphonophores are predators, and use their many tentacles to capture crustaceans and small fish.
Recently, a team of researchers including MBARI’s Steven Haddock published a paper describing two new species of siphonophores using samples collected on the Western Flyer. These species of the genus Apolemia are abundant and conspicuous in Monterey Bay.
You can read the species description here.