I was wondering if some one can help ID these snails? I noticed them 1st last night when the lights were off. It was seemed to be easily a hundred black dots on the sand. At closer look the seemed to be sails. Trying to ID them I found pictures of snail eggs on glass and realized I've been dealing with the same thing thinking it was algae. Attached are pictures of the snails next to a sand sifting starfish and one of the eggs. Right now I have Turbos, Nassarius, and Cerith Snails.