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.
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Paperback. Zustand: New. Print on Demand. This book explores the history of shell classification from its origins to the present day, with a focus on the work of seminal researchers. The author traces the evolution of knowledge about shells, from Aristotle's early observations to the detailed taxonomic systems developed by Linnaeus and Lamarck. Specific chapters address the contributions of key figures like Born, Bruguiere, and Schumacher, as well as the impact of shell collecting and specimen exchanges on the development of the field. The book also examines the influence of new technologies, such as the microscope and photography, on shell study, and discusses the role of museums and institutions in the preservation and dissemination of knowledge. Through a comprehensive analysis of primary sources, the author sheds light on the fascinating history of shell classification, providing insights into the development of scientific thought and the enduring fascination with these beautiful natural objects. This book is a reproduction of an important historical work, digitally reconstructed using state-of-the-art technology to preserve the original format. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in the book. print-on-demand item. Bestandsnummer des Verkäufers 9781332309986_0
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