Browse the MUSSELp Database!
The Freshwater Mussels (Unionoida) of the World
(and other less consequential bivalves)

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The searching function is handled by a Google Custom Search Engine.

The February 2025 Mussel of the Month is Simpsonasus nankingensis. Simpsonanus (Unionidae) is a monotypic genus known from the Lower Yangtze in China (East Asia).

This month, we’ll review the recent taxonomic turmoil associated with this species, and then point out how the MUSSEL Project Web Site has useful resources to deal with (and discover!) classification conundra.

The MUSSEL Project Database Dashboard

The MUSSELpdb-db is a quick summary of the current state of freshwater mussel species & genus richness, according to the MUSSEL Project Database (the MUSSELpdb).