Excerpt from Description of a New British Annelide: Belonging to the Tribe Rapacea of Grube Annelida Errantia of Milne-Edwards The genus Serpula of Linnaeus, as established by the illustrious Swede, contained several species now known to belong to the genus Vermetus, a genus of mollusks. After these were with drawn, there still remained many forms of shelly tubes which, though bearing a general resemblance to each other, were difficult to be arranged under one single genus. The animals, however, the architects of these ...
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Excerpt from Description of a New British Annelide: Belonging to the Tribe Rapacea of Grube Annelida Errantia of Milne-Edwards The genus Serpula of Linnaeus, as established by the illustrious Swede, contained several species now known to belong to the genus Vermetus, a genus of mollusks. After these were with drawn, there still remained many forms of shelly tubes which, though bearing a general resemblance to each other, were difficult to be arranged under one single genus. The animals, however, the architects of these tubes, after a time began to be a little more studied; and thus Lamarck, Blainville, Savigny, and some other naturalists were enabled to construct, upon good grounds, several genera to contain what might otherwise have been con sidered similar forms. The last author who has paid particular attention to this Linnean genus is Dr. A. Philippi. His sub divisions of Semula are founded upon a character which has been discovered by malacologists to be of great value in the class Mol lusca. The animals of the greater number of the species of Serpula which have been described possess a similar organ to that which characterizes so many of the Gasteropodous Mollusca. This is the operculum, which varies considerably in structure in the different species, and which thus forms an excellent character for dividing them into genera. As Philippi justly observes, this character has, moreover, the advantage that it may still be fre quently observed in dried specmens preserved in museums. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at ... 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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