Id help. Clam.?

[ducati1212]

put live rock in to cycle my tank 3 weeks ago. so far nothing in there but some snails I put in. Tonight my first hitch hikers howed up on my glass not sure what it is looks like a clam.?

 

[Devilishturtles]

Maybe a Whelk? Are the shells flat or are the conical?

 

[ducati1212]

More flat I guess. It looks like a tiny clam. But that picture is the best view I can get of him he is at a weird angle. Its definatley 2 shells with a foot coming out.

This might be a better pic.?

 

[ntswift]

Looks like a cleaner clam to me.