#snaileggs

I've noticed just yesterday these black spiral things in a few of our coral frags that seemed to appear overnight, could someone identify them please? I am thinking they may be vermetid snails but really hoping not! Second question, found these on the glass this morning, are they snail eggs?

My Zombie snails keep laying eggs all over my glass. Will these hatch - will they survive, or should i just clean them off with everything else? Thanks

Found 3 groups of eggs on my glass today can anyone help me identify them? The only inverts I have in my tank are stomatella snails, margarita snails, conchs, and Narssisus snails.