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Use "bivalves" in a sentence
"And, by the way, they cling to the rock, when they turn back their operculum, for this operculum seems like a lid; in fact this structure represents the one part, in the stromboids, of that which in the bivalves is a duplicate shell."
"Why should a dealer in "bivalves" be usually serious?"
"But it also bodes ill for other species, such as bivalves and sponges."