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- ›Unionoidea

River Mussels
Unionidae
The Unionidae are a family of freshwater mussels, the largest in the order Unionida, the bivalve molluscs sometimes known as river mussels, or simply as unionids.
The range of distribution for this family is world-wide. It is at its most diverse in North America, with about 297 recognised taxa, but China and Southeast Asia also support very diverse faunas.
9 branches of this family, most-observed first

Ambleminae
subfamilyAmbleminae

Unioninae
subfamilyUnioninae

Gonideinae
subfamilyGonideinae

Parreysiinae
subfamilyParreysiinae

Pseudodontinae
subfamilyPseudodontinae

Rectidentinae
subfamilyRectidentinae
Germainaia
genusGermainaia

Modellnaiinae
subfamilyModellnaiinae
Haasodonta
genusHaasodonta
Where it lives
Recorded sightings
—
geo-referenced records in GBIF, from museums, herbaria and field observers.
Drag the globe to turn it. Dots are where records exist, not a range map; darker means more records.
In the stacks
Searching the stacks…
Every page naming Unionidae in the Biodiversity Heritage Library →
This page is assembled live from iNaturalist, GBIF, Wikipedia, the Source Library and the Internet Archive. It is not yet part of the hand-edited codex. iNaturalist taxon 51903.