Guardian Nature School Contact Blog Project Noah Facebook Project Noah Twitter

A global citizen science platform
to discover, share and identify wildlife

Join Project Noah!
nature school apple icon

Nature School For Teachers - Fall 2020 Launch! visit nature school

Portuguese Man-of-war, Portuguese man o' war.

Physalia physalis

Description:

The Portuguese man o' war (Physalia physalis), also known as the Portuguese man-of-war, man-of-war, or bluebottle, is a marine cnidarian of the family Physaliidae. Its venomous tentacles can deliver a painful sting. Despite its outward appearance, the Portuguese man o' war is not a common jellyfish but a siphonophore, which is not actually a single multicellular organism, but a colony of specialized minute individuals called zooids. These zooids are attached to one another and physiologically integrated to the extent that they are incapable of independent survival.

Habitat:

The Portuguese man o' war lives at the surface of the ocean. The gas-filled bladder, or pneumatophore, remains at the surface, while the remainder is submerged. Since the Portuguese man o' war has no means of propulsion, it is moved by a combination of winds, currents, and tides. Although it is most commonly found in the open ocean in tropical and subtropical regions, it has been found as far north as the Bay of Fundy and the Hebrides.

Notes:

These are two beaches specimens. A strong onshore wind was blowing many men o' war on to the beach.

Species ID Suggestions



Sign in to suggest organism ID

No Comments

Duprasi
Spotted by
Duprasi

Texas, USA

Spotted on Apr 26, 2015
Submitted on Apr 27, 2015

Related Spottings

Blue Bottle Blue Bottle Man of war Portuguese Man O' War

Nearby Spottings

Violet snail, common purple snail Coquina Willet Coyote
Noah Guardians
Noah Sponsors