Prozorova L.A., Zasypkina M.O.
Bulletin of the Russian Far East Malacological Society 2008; (12): 106-111
Species composition of the genus Pisidium Pfeiffer, 1821 in Upper Yenisei River drainage is examined. In Bol’shoi Yenisei River drainage, two species, Pisidium amnicum (Müller, 1774) and Pisidium decurtatum Lindholm, 1909 are found. P. decurtatum is new for both Tuva Republic and Yenisei R. drainage. Origin and distribution of the species P. decurtatum is discussed.
