Mystery Mollusk Maybe

[ThunderGoose]

This came off the power head in my nano tank. Tank has live rock from LBS, a few hitchhikers that came with it (crabs, barnacles, clams - some of which are still alive) and some Turbo snails. I think those are the only things that might have anything to do with this...

They are hard and there were about a dozen of them on the power head. Any ideas? First image was taken under a microscope, the second is to give you an idea of size.

 

[Dsnakes]

Looks like a vermetid snail. See stringy stuff coming out when you feed?

 

[Maggie321]

Looks like a vermatid snail to me...

 

[ThunderGoose]

Thanks for the fast replies.

It looks a bit different from other pictures of vermetid snails I've seen so I didn't make the association myself but now that I look that long extending tube sure does look like a vermetid.

@Dsnakes I haven't observed any strings during feeding and I scrapped them all off the power head so I can't confirm the id. I'll be sure to keep an eye on them when they come back.

 

[Maritimer]

You almost certainly have them in your liverock as well.

They secrete a long "net" of mucus, in which they entrap particles which they draw in to feed on.

~Bruce