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Excerpt from Thesaurus Conchyliorum, or Monographs of Genera of Shells, Vol. 5 Generic character - Tesla angulatim fusiformis vel tur binata, canali extus late umbilicato, varice spirali, exfoliata marginato. - The shells associated in our plate, and mostly supposed to belong to this genus, have one or more of certain characters which link them together so as to form in ap pearance a natural group. The type is Py'rula. Mawm, re markable for the breadth of its umbilicated disc in the region of the canal. This character appears more or less in all the species but two, which otherwise resemble the umbilicated species so closely as to be scarcely separable. The exceptions are L. Fruticosus, Gould, and L. Pagoda, Adams. The species are all peculiarly sloped down towards the angle excepting. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com 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.

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