What is this? Snail ID

[landon]

I think it looks exactly like an olive snail

 

[kirru]

i just know for now its is going to clean up the sand bed in my fuge.. its nasty looking. maybe it will do better in there than in my DT since the sand isn't that great either.. of course, the pistol shrimp and goby could have something to do with that as well

 

[Jaycen B.]

I was wrong on my first guess. I agree olive snail, they may eat good snails and possible clams.