What might i have here?

Got this thing in my quick crew

Looks like a snail but seems to have flaps or shingles on his back.
He caused the snail he perched on to attempt to wiggle him off

 

...On the left? Same thing as on the right. The one at left has algae(I think that's what it is) on its shell.

 

Limpets.;D

 

small bivalve, that is how they begin to form.

 

Really I was wondering about that, it kinda of looks similar to a type of oyster you see. Is it related, do you know the specific name of the bi-valve.

TIA

 

i think they call them "western atlantic oysters", but I can try to find the right species name.

 

No thats good enough for me.

Thanks

 

Thanks for the info

 

no problem, hope it grows in for you. Usually larger bivavles just putter out b/c of lack of food, but not all, I have had a few reach adulthood.