ID on this hitchhiker please!

[gemmasicolo]

This was on a piece of live rock I purchased today. Any idea what it is? I haven't had any corals yet. Thank you.

<a href="http://s114.photobucket.com/albums/n271/gemmasicolo/?action=view&current=22509007.jpg" target="_blank"><img src="http://i114.photobucket.com/albums/n271/gemmasicolo/22509007.jpg" border="0" alt="Photobucket"></a>

<a href="http://s114.photobucket.com/albums/n271/gemmasicolo/?action=view&current=22509010.jpg" target="_blank"><img src="http://i114.photobucket.com/albums/n271/gemmasicolo/22509010.jpg" border="0" alt="Photobucket"></a>

[Jmikitz]

im thinking some sort of monti... will be hard to tell till it grows up a bit ...not an acro for sure .