Variability in the shell of the Lymnaea stagnalis (Mollusca; Gastropoda) from the Tasheba river (Yenisei river basin)

A list of statistical indicators characterizing five parameters of the Lymnaea stagnalis (Linnaeus, 1758) is presented. Mollusks were collected in the Tasheba River (Yenisei River basin) at a site near one of the dacha areas of Abakan. The results obtained supplement the regional malacological database on the size and age variability of gastropods. They are recommended for planning and carrying out biological monitoring of local water bodies and streams.