Sundial?

[Llyod276]

These were in my filter socks. I'm guessing sundials. Larger one is about 1/2 inch or so.

 

[fishguy242]

hi, look like trochus .

 

[Llyod276]

They all look the same to me. But don't see them mowijg down my zooas, so whatever.

 

[TnFishwater98]

They all look the same to me. But don't see them mowijg down my zooas, so whatever.

I have similar and to me kinda of look like Sundials. I can only find so many pics of sundial snails to compare.

 

[mfinn]

The best way to tell if a snail is a sundial snail is to flip it over and look at the operculum.
If it is cone shaped, then it is a sundial snail, these in the picture.