What is this crawling on my rock?

[bhoskins]

I bought some live rock today and tonight I noticed this crawling on my rock...what is it is it safe to keep?

 

[saxman]

Back off some so your camera/phone will focus...or focus it, whichever you can do.
If you noticed the critter moving, from what I can see of it, it may be a Stomatella, could be a small abalone, might be a cowrie, but I wouldn't say for sure without seeing it.

 

[bhoskins]

These are about as good as I can get with my crappy iPhone camera. It appears to have a hard shell.

 

[bang guy]

Looks like a Turkey-Wing Clam that is repositioning. How far has it crawled?

 

[bhoskins]

I noticed it last night but haven't seen it all all today so far. It moves very slow. I tried looking from every angle possible and I can't manage to see any legs or anything...I'm clueless

 

[saxman]

I agree with Bang...it's some type of bivalve...a turkey wing clam or thorny oyster.

 

[bhoskins]

Ok thank you very much!