Indo-Pacific Portuguese Man-of-War (Physalia utriculus) Български: Португалска галера (Physalia utriculus)
English: Portuguese Man-of-War Sail (Physalia utriculus)
Date 26 June 2009
Source http://www.flickr.com/photos/usfwssoutheast/7609467928/
Author USFWS Endangered Species
Source: https://commons.wikimedia.org/wiki/File:Physalia_utriculus.jpg
Physalia utriculus, also called Blue Bottle or (Indo-Pacific) Portuguese Man-of-War, is a marine hydrozoan of the order Siphonophora found in the Indian and Pacific oceans. A gas filled bladder allows it to float on the surface, propelled by currents, tides, and by a sail at the top of the bladder. A single long tentacle of venomous cnidocytes, hanging below the float, provides the animal with a means of capturing prey.