Excerpt from Archiv für Molluskenkunde als Nachrichtsblatt der Deutschen Malakozoologischen Gesellschaft, 1920, Vol. 52Der Einfluß eines Höhenklimas macht sich bei den Formen dieses Genus dadurch geltend, daß Falten und Lamellen der Mündung kürzer und niedriger, das Clausilium verhältnismäßig kleiner, die Lappen des selben kleiner bis undeutlich werden.About the PublisherForgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.comThis book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully, any imperfections that remain are intentionally left to preserve the state of such historical works.