river mussel

English

Noun

river mussel (plural river mussels)

  1. Certain Any bivalve mollusks of family Unionidae, found in flowing fresh water:
    1. (US) especially of genera Unio and Anodonta, both found in rivers of the central U.S. with a shell lined with mother-of-pearl.
    2. (Australia) especially of species Alathyria jacksoni.

References

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