Snail with a Snout O_o

[SaltwaterNoobs]

Just discovered a small, white-shelled snail in our cycling 55 gallon tank (must have hitch-hiked in on the liverock). Wouldn't bother me normally, but this one has a worm-like snout it keeps sticking in and out of the shell, like it's using it to sniff it's way around. I have never seen anything like it before. Does anyone know what type of snail this is? And if so, is it safe in my tank, or will it end up being a pest down the road? I tried taking a picture, but my crappy digital won't take a clear shot.

 

[Inconservatory]

Is the shell rounded in the front with a tapered end? Hopefully you have a nassarius snail, which would be a good sand-stirrer. Just hope it's not predatory. Even a blurry picture would help.

 

[SaltwaterNoobs]

Is the shell rounded in the front with a tapered end? Hopefully you have a nassarius snail, which would be a good sand-stirrer. Just hope it's not predatory. Even a blurry picture would help.

Yes, it's booty comes to a point The blurry picture comes out showing the snail as a white dot, so I felt it probably wouldn't do any good >.<

So is it safe to say this guy is okay? The snout just threw me off. I thought maybe it was expelling waste or something, but when it retracted and came back, I was like, "Whoa!" and of course, immediately came here to find answers