What is the name of this oyster?

Thanks

Looks like a Lisa to me...

Would help a lot if you told us where you found it.

Well,It is from the atoll of French polynesia(Tahiti)-Lagoon of Rangiroa.

Here is another close up of the.....?????

Well, I'm pretty sure it's a scallop and not an oyster. Might get you started.

Cheers

James

Looks like a thorny oyster (they look like scallops)...Spondylus sp. of some kind. The colouration doesn't match any reference I have.

Cheers,

Marli