Molluscs of the Krkonoše Mts. (Czech Republic)

As a result of recent malacological research of 47 sites combined with commented list of earlier published and unpublished data 90 mollusc species were found in the Krkonoše Mts. altogether. In comparison to snail communities from comparable mountain ranges of the Bohemian Upland the mollusc fauna of Krkonoše is rather poor both in species and in a number of fully developed woodland assemblages. The richest molluscan assemblages occur in the Krkonoše foothills. The subalpine and particularly alpine belts are permanently very poor in molluscan diversity due to highly acidic soils and bedrock.