Barrel jellyfish Rhizostoma pulmo

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 Jellyfish are always fascinating! whether they are dangerous or completely harmless like the Barrel jellyfish (Rhizostoma pulmo). Every time we find this jellyfish and publish the film on (and on the YouTube channel) we register a lot of visits and receive many emails from curious people, simple enthusiasts, divers and marine biologists. So we are happy to publish this video even if it is not exactly recent, in fact made in 2022.

Barrel jellyfish Rhizostoma pulmo Polmone di mare

Barrel jellyfish Rhizostoma pulmo Polmone di mare


Barrel jellyfish is one of the easiest jellyfish to encounter in the Mediterranean Sea and it is also one of the largest jellyfish, so if you are interested in this species, continue to follow this site because we will continue to publish photos and videos of this splendid jellyfish.

Rhizostoma pulmo (Macri, 1778), also known as sea lung or barrel jellyfish, is a scyphomedusa of the Rhizostomatidae family.

Distribution and habitat
It is a pelagic species widespread in the eastern Atlantic Ocean, the Mediterranean Sea, the Adriatic and the White Sea.

Barrel jellyfish Rhizostoma pulmo Polmone di mare

Barrel jellyfish Rhizostoma pulmo Polmone di mare


This jellyfish has a hemispherical hat that is opalescent but tending towards transparency, with blue-purple fringed edges. Under the hat the body is called the manubrium and is composed of eight extensions of curled and lumpy white-transparent tissue, from which eight elongated, fringed and semi-transparent tentacles emerge.

oung specimens tend to have a more transparent color, adults much more opalescent. The common name of sea lung is due to the typical throbbing movement made by the jellyfish to move. The dimensions are noteworthy: being able to reach 50–60 cm in diameter and 10 kg in weight, it represents the largest jellyfish in the Mediterranean.




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Questo articolo è stato scritto il / This article was written on 27/09/2023
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