Mexican turbos? Breeding?

I took a look at my tank tonight after the lights had been off for 2 hrs. I have over 100 (I stopped trying to count at 100) 1/8" diam snails on the glass and on my fuji rock. They are not on a single piece of my artificialy cultured LR<????> . The only snail in my tank that their shells resemble are my mexican turbos. What the duece? I was under the assumption that turbos would not breed in a tank. Or is this another type of snail altogether?

 

Maybe their was eggs on the fuji and they were hatching? Their are many wonders and unanswered questions when dealing with a saltwater aquarium.