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Lithasia

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Lithasia armigera (Say 1821), ( ) U.S.A.,

Freshwater Molluscan

Lithasia duttoniana (Lea 1841), ( ) U.S.A.,

Freshwater Molluscan

Lithasia geniculata (Haldeman 1841), ( ) U.S.A.,

Freshwater Molluscan

Lithasia geniculata fuliginosa (Lea 1841), ( ) U.S.A.,

Freshwater Molluscan

Lithasia obovata (Say 1829), ( ) U.S.A.,
Lithasia verrucosa (Rafinesque 1820), ( ) U.S.A.,