Slug or Naudibranch?

[sdellin]

Before this thing slithered into the rock, I saw that it was oblong with two of the spots on it's back that you can see in the pic. FYI, it's the tan colored spot in the middle with the black spot on it, you can only see half of it as the other half is hidden. Best pic I could get before it disappeared.

Any idea on whether or not I should let this thing live? (I'm kidding, of course) Is it dangerous to my reef and inverts?

 

[oyf709]

It is hard to tell... with so many kind of slug out there, I will always keep an eye on ur coral, if anything missing then u need to remove it from the tank. It doesn't matter if u want to kill it or not, if it is those kind of coral eating slug, after it consume all coral it will eat, it willjust starve to death.

 

[sdellin]

Here is a better pic. It's actually much longer than I thought. It's tan with three black spots, then it turns darker with what looks like a red spot. Help! I put this rock in my QT until I know it's safe for my corals.

Also, it seems to be burrowed into the rock, so I have no idea how long it is, but I believe it's hard, not soft like a slug.

 

[Fluff]

Wow, it's been a long time since I've ID'd one of these. That's a chiton. Great algae grazer. Definately let it live.

 

[sdellin]

Wow! Okay, I'll put the rock back in the big tank!

 

[steve-s]

http://www.seaslugforum.net/display.cfm?base=chitons&id=8502

Cheers
Steve

 

[sdellin]

Thanks, Steve. It looks just like the one I have.