Coral boring worms?
 

Does anyone know of any species of worms that bore into Euphylia or other corals?
I was fragging some coral the other day. Cut through a branch with the ringsaw, put the frag into some seawater and out pops this:

http://i22.photobucket.com/albums/b3...ps11fa70eb.jpg

Here's a link to a short video of it flailing around the tupperware container.
http://s22.photobucket.com/user/Amemaru/media/VID_20140102_121929_zpscda8e421.mp4.html


Pretty sure it came out of here (it was rather unexpected and I'm not sure if I trust what I think I saw):
http://i22.photobucket.com/albums/b3...psad31311d.jpg

My distrust of my memory aside I did notice little holes in the skeleton.
http://i22.photobucket.com/albums/b3...psa176f500.jpg

I dipped the frags after but did not find anymore worms.

I had a similar worm in an encrusting monti

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