Barrel jelly fish (Rhizostoma pulmo) in United Kingdom waters, Devon, England, United Kingdom, Europe

Barrel jelly fish (Rhizostoma pulmo) in United Kingdom waters, Devon, England, United Kingdom, Europe

Split shot of a large barrel jellyfish (Rhizostoma pulmo) with the wreck of the small steam ship Kaffir in the background. A moody cloudy sky with textured clouds is above. Ayr, Scotland.

Jellyfish, Rhizostoma pulmo

Jellyfish, Rhizostoma pulmo

Dustbin-lid jellyfish (Rhizostoma pulmo) in shallow water, Catalonia, Spain, Europe

Jellyfish (Rhizostoma octopus) on the water surface, Catalonia, Spain, Europe

Jellyfish, Rhizostoma pulmo, Spain, Mediterranean Sea, Costa Brava

Jellyfish, Rhizostoma pulmo, Spain, Mediterranean Sea, Costa Brava

Detail of a cauliflower jellyfish, Boueni Pass, Mayotte