Deutsch: Eine Portugiesische Galeere (Physalia physalis).
English: Portuguese man-of-war (Physalia physalis)
Date
Source U.S. Department of Commerce, National Oceanic and Atmospheric Administration
Source: https://commons.wikimedia.org/wiki/File:Portuguese_Man-O-War_(Physalia_physalis).jpg

The Atlantic Portuguese man o' war (Physalia physalis), also known as the man-of-war, blue bottle, or floating terror, is a marine hydrozoan of the family Physaliidae found in the Atlantic Ocean, as well as the Indian and Pacific Oceans.