Beaun
It's pronounced Bone
Not a photo, and not by me obviously. But here is a nice BBC video of some sea dragons, and figured this would be a good spot for it. It's from the new series Life by the BBC.
http://news.bbc.co.uk/earth/hi/earth_news/newsid_8330000/8330705.stm
http://news.bbc.co.uk/earth/hi/earth_news/newsid_8330000/8330705.stm