Stinger: Jellyfish season arrives along Gulf Coast, a real pain for beachgoers

http://www.naplesnews.com/news/2010/sep/10/jellyfish-gulf-mexico-stings-beach-nettles/
- Naples News

The sea nettles apparently have some larger cousins in other parts of the world. The attached photo was taken from the deck of a NOAA vessel 50 miles off the Chilean coast, ca. 12 or so feet above the surface. Its bell diameter estimated to be 4-5 feet long.