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The Portuguese man o' war (Physalia physalis), also known as the man-of-war [6] or bluebottle, [7] is a marine hydrozoan found in the Atlantic Ocean and the Indian Ocean. It is considered to be the same species as the Pacific man o' war or bluebottle , which is found mainly in the Pacific Ocean . [ 8 ]
Portuguese man o' war (Physalia physalis) Organisms in the order of Siphonophorae have been classified into the phylum Cnidaria and the class Hydrozoa. [3] The phylogenetic relationships of siphonophores have been of great interest due to the high variability of the organization of their polyp colonies and medusae.
The family Physaliidae is monotypic, consisting of only one genus, Physalia. [2] The genus is also monotypic, containing only P. physalis. [1] [3] There is a long history of the genus being described with multiple species, such as the Pacific man o' war (P. utriculus), however most of these species are now considered synonyms for P. physalis.
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This small cnidarian is part of a specialised ocean surface community that includes the better-known cnidarian siphonophore, the Portuguese man o' war. Specialized predatory gastropod molluscs prey on these cnidarians. Such predators include nudibranchs (sea slugs) in the genus Glaucus [4] and purple snails in the genus Janthina. [5]
HARVEY CEDARS, N.J. — Watch where you step, beachgoers. A Portuguese Man o' War washed up on the Jersey Shore on the first day of summer, prompting lifeguards to sound the alarm that potentially ...
The species is able to feed on the Portuguese man o' war due to its immunity to the venomous nematocysts. The slug consumes chunks of the organism and appears to select and store the most venomous nematocysts for its own use against future prey. [23] The nematocysts are collected in specialized sacs at the tip of the animal's cerata.
It is a distinct species characterized by an elongated body, large eyes, and blackish-blue stripes, growing up to 39 cm long. Inhabiting warm, deep pelagic zones of the Atlantic, Pacific, and Indian Oceans between 200 and 1,000 meters deep, this fish lives within the tentacles of the Portuguese man o' war, feeding on its tentacles and gonads ...