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 January 2025 Mussel of the Month is Plethobasus cicatricosus. Plethobasus is a genus of three species known from the Ohio and upper Mississippi basins of North America.

Classification & Geography: Unionidae, North America
Topic: Classification of the genus Plethobasus.

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).

Current Number of Freshwater Mussel Species:

1015

Current Number of Freshwater Mussel Genera:

210

Last Updated
Wed 2 Jan 2025

Click here for a detailed summary of species and genus richness by taxonomy.

Click here for a detailed summary of species richness and endemism by geography.

"Making the world a better place, one mollusk at a time."
	The MUSSEL Project — Home Page http://www.mussel-project.net/. Site developed and maintained by Dan Graf & Kevin Cummings. Hosted by The University of Wisconsin-Stevens Point. Funded by The National Science Foundation.

Search the database pages:

The MUSSEL Project Database Dashboard

Current Number of Freshwater Mussel Species:

1015

Current Number of Freshwater Mussel Genera:

210

"Making the world a better place, one mollusk at a time."