Chemical composition of shells of Cepaea vindobonensis (Férussac, 1821) (Gastropoda: Pulmonata: Helicidae) from localities with different substrata

Chemical composition of shells of Cepaea vindobonensis (Férussac) from sites with carbonate and carbonate-silica bedrock in central and south-eastern Poland and from alluvial deposits of the Vistula River indicates a relation between the chemism of the environment in which the species occurs and the chemical composition of the shells. The ability to accumulate heavy metals in the shell of C. vindobonensis makes this species a potential bioindicator.