banded trochus snail, breeds in aquarium and its common. keep the wrasses away, or they will be lunch.
If you are not sure, you can keep those snails with a zoa in a confine area and see if they go after the zoa
yah from what research I've been doing seems like they are collonista snail, dunno how they got in my tank( dip everything) but happy to know they are harmless.