I'm going to try and take a pic so, I know this is harder without one but, my digital camera is a small pocket one and I can't zoom in enough with out it blurring.
Anyway, I have a couple (2 now that I've found) snails that are identical in shape to a "Cerith" but, are snow white in color and have brilliant, pinpoint, black dots? Only about 1/4" in length.
Waaaaaa Daaaaaa.....is it, them, they, ahhhh?
Bueller......Anyone....