Phenetic population structure of the land snail Helix albescens (Gastropoda, Pulmonata, Helicidae) in the Crimea
Journal: Russian Journal of Ecology
Year: 2011

The polymorphism of shell banding pattern has been studied in Crimean populations of the land snail H. albescens. The results show that snails from different regions of the Crimea are characterized by specific types of shell polymorphism, the differences between them concerning mainly the number of observed shell morphs rather than their occurrence frequency. In particular, the proportion of snails with darkly colored shells increases in relatively cool habitats. However, among the microevolutio