Boreoelona contortrix (Lindholm, 1909) (Bithyniidae, Gastropoda, Mollusca) in the waterbodies of Western Siberia and Kazakhstan

Svetlana I. Andreeva, Nikolai I. Andreev, Ekaterina A. Lazutkina

Abstract


The locations of Boreoelona contortrix in the waterbodies of Western Siberia and Kazakhstan are reported as well as the data on morphology of shells
and copulatory apparatus of the species from different parts of its range. The interpopulation variation is considered. On the basis of anatomical and morphometric study, it has been shown that there are no statistically
significant differences between males and females of B. contortrix. Problems of taxonomy of the Boreoelona species are discussed.


Keywords


sexual dimorphism; variation; taxonomy

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