Can someone identify these bivalves (attached to Placuna shells) from Arabian Sea? Do they belong to Pinctada (Pteriidae)?

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Alan R Kabat

Looks almost like a Capulidae or even Amathinidae! Can you lift or remove the shells to expose the underside?

Norma Afiati

Dear Shanawaz

Not sure for the big picture of the 3 individuals, might be Capulidae. But the two smaller pictures at the bottom are Pinctada species to me..good luck.

Saedul Bibi

Very nice collection...For my humble openion, Unidentified bivalve – 18 (It could be Pinctada margaritifera cf. I’m not sure about that) and Ub- 17 it seems to Capulidae family agree with @ Allan R Kabat.