Morphological and optical properties and evolutionary changes of the eye lenses of terrestrial gastropod molluscs (Pulmonata, Stylommatophora)
Morphological and optical properties were studied and also evolutionary changes of the eye lenses of some species of terrestrial gastropod pulmonate molluscs were traced. It was demonstrated that all examined properties of the lenses are typical for terrestrial pulmonates. In the course of evolution due to habitat shift by mollusks the lenses were changed only slightly.