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MUSSELpdb
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Unionidae
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Species Richness & Endemism by Geography
Data last updated Thu 18 Dec 2025
Bivalvia | Unionoida
1 genus, 4 families
Guo, 1981. 12th Ann. Conf. Palaeo. Soc. China: 61.Type genus: Nakamuranaia Suzuki, 1943 = Nakamuranaia
Guo, 1986. Yunnan Geol. 5(4): 342, 347.Type genus: Americunio Guo, 1986 = Americunio
Chen, 1987. unknown publication: ??.Type genus: Nippononaia Suzuki, 1941 = Nippononaia
Chen, 1987. unknown publication: ??.Type genus: Plicatounio Kobayashi & Suzuki, 1936 = Plicatounio
Chen, 1987. unknown publication: ??.Type genus: Sinonaia Guo, 1981 = Sinonaia
Cox, 1952. unknown publication: ??.Type genus: Trigonioides Kobayashi & Suzuki, 1936 = Trigonioides