Are these snails ok ?

[SaltISlife]

Bought a palm sized cyphastrea and before i dipped it i noticed i had these two snail looking things on it. Theyre fast too. So i put them ina little cup and not the dip. I think ive seen these before ages ago but i cant remember if theyre good or bad

 

[fishguy242]

hi,one on left looks like stomatella ,if so safe,cannot really see rt one enough