Nudi ID and info please.

[Pippi2773]

I found this on the ceiling of a cave in my tank, I though it was a suction cup at first. It looks kind of like a small luttuce nudibranch but black with a long white spot on its back. If anyone can tell me how dangerous this is let me know please.
Thanks,

<a href="http://photobucket.com" target="_blank"><img src="http://i203.photobucket.com/albums/aa38/stilllife14/nudi.jpg" border="0" alt="Photo Sharing and Video Hosting at Photobucket"></a>

 

[LeslieH]

Your link goes to the home page of Photobucket - can you attach your photo here?

The description sounds more like a Scutus. Do a search here on RC and you'll find many pictures for comparison. If so it's a limpet, a harmless grazer.

 

[Pippi2773]

Yeah, you nailed it, it's a scutus. I'm so glad he's harmless since he looks so interesting.
Thank you.