wow Jovreefer, The one in the first pic is a black and white zebra maxima. IMHO they are the #2 hardest to find clam in the hobby.... Good find! What did you have to pay for it?
I have only ever seen two for sale online, one was $500 and I got mine off of ebay for $100, I got lucky, I guess the other bidders didn't know thier rareness.
BTW the middle clam is actually a crocea.
Just curious, what lighting are you using. And also do you know what kind of macro algae that is growning in your tank? One of my little maxima's has it growing on his shell.