sea monster?

Rare sea creatures made up of thousands of clones

A translucent, cylindrical free-floating monster lurks underneath the sea. It has a mouth large enough that it could devour adult humans, if it chooses to do so.

Read more: http://www.foxnews.com/science/2013/08/02/rare-sea-creatures-made-up-thousands-clones/#ixzz2b5Bab9Ie