A Monograph of the British Spongiadæ, Vol. 2 (Classic Reprint)
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| Hersteller: | Forgotten Books (Bowerbank, J. S.) |
| Stand: | 2015-08-04 03:50:33 |
Produktbeschreibung
Excerpt from A Monograph of the British Spongiadæ, Vol. 2 In the first volume of this work, page 159, in the ´Tabular View of Systematic Arrangement,´ I included the exotic as well as the native genera; believing it highly probable that some of the species of the former would before long be found among our British Sponges; and this idea has been already realised, by my having since that period added two species of Ecionemia and one of Ophlitaspongia, an entirely new genus, to our list of British species. I have followed the same course in the synopsis of the genera in this volume, but to prevent any misconception regarding the British Genera, I have given a list of those which arc described in this volume, with the number of species in each, in the Table preceding the synopsis of the Genera. Generally speaking, there is no great difficulty in the determination of the genus, but in some cases more than ordinary caution is necessary in the examination of the specimen under consideration. The greatest difficulty in this respect lies in the determination of specimens belonging to the first section of Halichondria, and the first of Isodictya. 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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