APHOTOMARINE

An educational resource dedicated mainly to the photography
and diversity of marine life that can be found in coastal waters
and intertidal areas of Great Britain and Ireland by David Fenwick.

APHOTO Wildlife Stock Image Libraries
Rhizostoma octopus (Gmelin, 1791) - Barrel, Rootmouth or Dustbin-lid Jellyfish (Jellyfish images)
Rootmouth, Dustbin Lid
or Barrel Jellyfish
Rhizostoma octopus
- stranded / dorsal view 1

Rootmouth, Dustbin Lid
or Barrel Jellyfish
Rhizostoma octopus
- stranded / dorsal view / with identiciation guide 1

Rootmouth, Dustbin Lid
or Barrel Jellyfish
Rhizostoma octopus
- stranded / dorsal view / with identiciation guide 2

Rootmouth, Dustbin Lid
or Barrel Jellyfish
Rhizostoma octopus
- stranded / dorsal view / with boot as size guide 1

The specimen above was found stranded on the shore at Sennen Cove, West Cornwall, 19.12.14.

The determination based on -

"Rhizostoma octopus (Linnaeus) and R. pulmo (Macri) (Scyphozoa: Rhizostomeae) are closely related and frequently misidentified, with the sole difference being the number of marginal lappets around the bell, generally 8 per octant in R. pulmo and 10 in R. octopus, but up to 16 have been recorded.

Ref: Distribution, extent of inter-annual variability and diet of the bloom-forming jellyfish Rhizostoma in European Waters. M.K.S. Lilley, J.D.R. Houghton and G.C. Hays. Journal of the Marine Biological Association of the UK ยท February 2009.

Scientific and European Names:
Rhizostoma octopus, Barrel Jellyfish, Rhizostome, Rhizostome Jellyfish, Zeepaddestoel, Poumons de Mer, Rhizostome, Rhizostome de Mer, Blaue Lungenqualle, Blumenkohlqualle and Lungmanet.

Rhizostoma octopus Northern Rootmouth Dustbin Lid Barrel Jellyfish Images
The main objective of this website is in furthering environmental awareness and education through the medium of photography. To increase awareness and access to the wildlife of the region and help
people find and identify it. Sometimes the difference between species is obvious but many species can only be determined by observing microscopic characteristics that are specific to any one species.