freshwater mussel

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freshwater mussel

mollusk

Also known as: Unionacea, naiad

Learn about this topic in these articles:

distribution

In mussel
The largest family of freshwater mussels is the Unionidae, with about 750 species, the greatest number of which occur in the United States. Many unionid species also live in Southeast Asian waters. Several North American unionids are threatened by habitat degradation, damming, and the invasion of zebra mussels.
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