Thelepus cincinnatus - <i><a href="//commons.wikimedia.org/w/index.php?title=Thelepus_cincinnatus&amp;action=edit&amp;redlink=1" class="new" title="Thelepus cincinnatus (page does not exist)">Thelepus cincinnatus</a></i>. "This is a parchment worm that is out of its tube. It is also called a Bristleworm and puts out its tentacles to collect its microscopic food. If you want to learn about worms, sign up for Helminthology." © jkirkhart35 - CC BY 2.0 - Wikimedia Commons