A class or subclass of bivalve mollusks including oysters, mussels, and clams, characterized by having well-developed, efficient gills.
Plural or collective form derived from the Greek roots eu- (well) + lamella (thin plate) + branchia (gill), naming the group defined by their superior gill structure.
Eulamellibranchia includes some of the most economically important sea creatures—oysters and mussels filter-feed so effectively they've been used to clean polluted harbors and estuaries!
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