Big mediterranean Barrel jellyfish
Big mediterranean Barrel jellyfish, Rhizostoma pulmo, It typically is up to 40 cm. in diameter, but can exceptionally reach 150 cm. or larger, making it the largest jellyfish in British waters, is moderately venomous but not as deadly as other species. Effects include a burning sensation on the skin, dermatitis, and ulcers which confirms it is toxic to humans. However, it does not pose a serious threat to humans.



































