bivalves id ?

[BubikolRamios]

Thanks for id.
Nothing to excuse, I get driven away by reflection thing (-:
In process of getting black clay & another black glass, so photos will get better regarding id oriented shooting.

Edit: see this:
http://agrozoo.net/jsp/Galery.jsp?id_tezaver=149961
The first does not look compatible with other two t.d. ?
2,3 seems compatible with what google images throws out - looking at shell surface.