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 April 2025 Mussel of the Month is Neotrigonia bednalli. Neotrigonia (Trigoniidae) isn’t really a freshwater mussel genus at all, but it is the marine sister-group of freshwater mussels (Unionoida).

This month, the topic for our mussel musings is the evolutionary relationship between Neotrigonia and the freshwater mussels.

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).