Definition
The term *Placuna* refers to a genus of thin-shelled bivalves. These mollusks are known for their flat, translucent shells. They are commonly called 'windowpane oysters' because their shells were historically used as a glass substitute. πͺ They live in shallow coastal waters, particularly in Southeast Asia. Theyβre filter feeders, playing an important role in their ecosystems. Think of them as the stained glass of the sea.