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Taxonomy

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Unionidae

Margaritiferidae

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Species & Genus Richness of
freshwater mussels
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Species & Genus Richness of
freshwater bivalves
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Geography

Summary

North America

Central America

South America

Afrotropics

North Eurasia

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Species Richness & Endemism of
freshwater mussels
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Data last updated
Wed 04 February 2026

Bivalvia | Unionida | Trigonioidoidea

family NAKAMURANAIADIDAE Guo, 1981: synonymy

7 genera

Synonyms

NAKAMURANAIADIDAE Guo, 1981

Guo, 1981. 12th Ann. Conf. Palaeo. Soc. China: 61.
Type genus: Nakamuranaia Suzuki, 1943 = Nakamuranaia

NIPPONONAIIDAE Chen, 1987

Chen, 1987. unknown publication: ??.
Type genus: Nippononaia Suzuki, 1941 = Nippononaia

SINONAIIDAE Chen, 1987

Chen, 1987. unknown publication: ??.
Type genus: Sinonaia Guo, 1981 = Sinonaia

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