Amuropaludina Moskvicheva, 1979

Examined species: Amuropaludina praerosa (Gerstfeldt, 1859)

(Figs 2H, 3H, 6H).

Remarks: Within Viviparidae, Amuropaludina is the only genus with an operculum that has a central nucleus. All other genera of Viviparidae have an operculum with a subcentral nucleus. The wide semi-elliptical shape of Amuropaludina is also a useful diagnostic character.