Eight spices of terraneous mollusca are revealed as a result of our collecting in linden-spruce woodsorrel and derivative spruce extractions (aged 1−30 years). All the spices collected are known as phenophyllophilus or inhabitants of softwood (some of them represented the following types N. hammonis, N. petronella, Bradybaena fruticum) and wet meadows. The population of terraneous mollusca in our collecting is not huge (0,3–0,8 species per square meter). Meanwhile, the adaptability of mollusca to various conditions of the environment and low ability to disperse allow to use them in characteristics of hydrothermal regime of biotopes and soil-forming process.