A Monograph of the Cretaceous Lamellibranchia of England Vol. 2 (Classic Reprint)

Excerpt from A Monograph of the Cretaceous Lamellibranchia of England Vol. 2<br><br>Description. - Shell large rather compressed ovate height greater than length; antero-dorsal margin straight the remainder forming a regular curve. Anterior area deeply depressed. Apical angle apparently about Anterior ear small; posterior ear larger with a few ribs.<br><br>Ornamentation consists of about 40 rather strong narrow ribs with rounded summits which in places are slightly tubercular. The ribs are closer together on the anterior part of the valves than elsewhere. The interspaces are much broader than the ribs and are ?at or slightly concave; they are marked by numerous fine concentric ridges.<br><br>About the Publisher<br><br>Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com<br><br>This 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.