white snail

[got bait?]

I saw the coolest little snail in my nano this weekend. About the size of a bumble bee snail, but all white with little black eyes. Also, has a row of spikes running laterally down each side, like a hedge hog. I gues the most intriguing this is where did it come from, I have not added any LR, LS or new inhabitants for 5 mos or so. Took a picture but it was too blurry, it was on the galss with a bunch of star polyps behind it, so the camera wouldn't focus right.

 

[got bait?]

got it it's a Stomatella. Did some more searching here, found what I thought was it. Did a Google and Whalla!
Thanks again