A bivalve mollusk belonging to the class or subclass Eulamellibranchia, characterized by well-developed gill structures.
From Greek eu- (well) + lamella (thin plate) + branchia (gill), literally meaning 'well-plated gills,' referring to the efficient gill structure these mollusks possess.
Eulamellibranch gills are engineering marvels—they're so efficient at filtering that a single mussel can clean up to 15 gallons of water per day, making them nature's water purifiers!
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