Bivalve growing on snail

[MNJP]

Just noticed that one of my Turbo Snails has a Bivalve growing on it. Does anybody know what type of Bivalve it is?

 

[ISpeakForTheSeas]

Just noticed that one of my Turbo Snails has a Bivalve growing on it. Does anybody know what type of Bivalve it is?

Good pic of the mouth there - do you think you could get some top-down shots of the shell so we can see the whole thing? If you can show the hinge of the bivalve, that'd be helpful too.

Does your bivalve here have a siphon like clams do or not?

From what I can see, I'd guess it's probably some kind of oyster, but more pics would likely be helpful.

 

[Hats_]

this is pretty cool!