The MUSSELp is the MUSSEL Project, an internet resource to support research on the systematics of freshwater mussels (and other bivalves). Find out more about the MUSSEL Project
The MUSSELpdb is the MUSSEL Project Database, providing current information on the the taxonomy, nomenclature, literature, specimens, phylogeny, and other data supporting research on freshwater mussel evolution and ecology. Find out more about the MUSSEL Project Database
Browse the MUSSEL Project Database! Navigate the taxonomy hierarchy to explore data on the taxonomy, nomenclature, specimen vouchers, phylogeny, and literature on the Freshwater Mussels (Unionida) of the World (and other less consequential bivalves).
Search the MUSSEL Project Database! The MUSSEL Project Database Search Engine (MUSSELpdb-se) can search taxa, localities, and publications by keywords. A Google Search Engine is also available.
The January 2026 Mussel of the Month is Leila blainvilliana by Daniel Graf
Leila blainvilliana has peculiar posterior “siphons,” distinct from those of typical neotropical Mycetopodidae
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:
1005
Current Number of Freshwater Mussel Genera:
219
Last Updated
Thu 22 January 2026
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.
