Golden jellyfish (Mastigias papua etpisoni), in Jellyfish Lake, a marine lake located on Eil Malk island, Rock Islands, Palau, Micronesia, Pacific

Golden jellyfish (Mastigias papua etpisoni), in Jellyfish Lake, a marine lake located on Eil Malk island, Rock Islands, Palau, Micronesia, Pacific

Crab preying on dead portuguese man-of-war, Physalia physalis, Praia do Forte, Bahia, Brazil (South Atlantic)

Anemone feed Jellyfish, Entacmaea medusivora, Mastigias papua etpisonii, Jellyfish Lake, Micronesia, Palau

Anemone feed Jellyfish, Entacmaea medusivora, Mastigias papua etpisonii, Jellyfish Lake, Micronesia, Palau

Detail of a cauliflower jellyfish, Boueni Pass, Mayotte

Helmet jellyfish (Periphylla periphylla) is a luminescent, red-colored jellyfish of the deep sea. Trondheimsfjord, Norway, Atlantic Ocean