I think it's a .....
The whatthefuckarewe tribe eat em ,they're a delicasey apparently you usually can only find them in the sea of secrets,
Sorry mate couldn't resist that little joke.
It does look a bit like a snail.
Yeah it's a snail.
Seriously it looks a bit similar to a cerith snail,(baby one obviously) it's hard to recognise being so small,all you have to go on is the shape really,like I said there's thousands of species of snails out there ,but that's my guess,
Looks like a tiny baby cerith snail.sorry can't help much more than that at this time,
I'll do a bit of searching for you see if I can find out any more because I'm good like that.