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RE: Crossing paths with the endangered freshwater pearl mussel (Margaritifera margaritifera)

in #nature • 7 years ago

Swan mussel
The swan mussel, Anodonta cygnea, is a large species of freshwater mussel, an aquatic bivalve mollusc in the family Unionidae, the river mussels.
Because of its morphological variability and its wide range of distribution, there are over 500 synonyms for this species.

7 years ago in #nature by
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