Cristaria is a genus of freshwater mussels or pearl mussels, aquatic bivalve mollusks in the family Unionidae.

Species in the genus Cristaria include:[1] In China, one of the species in this genus, Cristaria plicata is "one of the most important freshwater mussels for pearl production" in the country.

[2] It is also used for medicinal purposes.

[3] This Unionidae-related article is a stub.

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