Is this a clam on my snail

[elijah scot]

I’ve had this snail for a while now and a little while back

I noticed a bump on its shell and didn’t think anything of it till I saw the clam or what ever it is open
Does anyone know what it is?

 

[blaxsun]

Kind of looks like a tiny clam.

 

[ISpeakForTheSeas]

It's definitely a bivalve of some variety - a clam is a good guess. It's definitely a harmless filter feeder.