Vinarski M.V., Glöer P., Andreyeva S.I. & Lazutkina E.A. (2013) Taxonomic notes on Euro-Siberian molluscs. 5. Valvata (Cincinna) ambigua Westerlund 1873 - A distinct species of the group of Valvata piscinalis O.F. Müller 1774. Journal of Conchology 41(3): 295-303.
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Vinarski, M. V.; Glöer, P.; Andreyeva, S. I.; Lazutkina, E. A.
2013
Taxonomic notes on Euro-Siberian molluscs. 5. <i>Valvata (Cincinna) ambigua</i> Westerlund 1873 - A distinct species of the group of <i>Valvata piscinalis</i> O.F. Müller 1774