Different kinds of Seashells?

[Mantis]

How many different kinds of shells can be found by combing through the sand on the beach? So far, I've found a clam shell, a conch shell, and a starfish...any more seashells you've found?

[blscott2]

that is all i found also

[crocobaura]

I only found clams and some starfish. I'd love a conch though. The shells make nice deco for the bathrooms. :)