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Excerpt from A Monograph of the Tertiary Entomostraca of England The Tertiary Entomostraca of Britain have hitherto received but little notice. In my 'Monograph of the Cretaceous Entomostraca, ' 1849, published by the Palaeontographical Society, I referred to the occurrence of some of the Cretaceous species in our Tertiary deposits. Dr. Reuss, about the same time, figured and described two forms which he had received from the Barton Clay of Hampshire; and I have since described a few species from Woolwich and Colwell. Several of the Post-tertiary fresh-water Entomostraca, however, have been noticed by me, in 1850, in the 'Annals of Natural History.' To these latter species I have now to add two others; and of the Tertiary Entomostraca I am enabled, from my own collection and with the aid of my friends, to enumerate 50 species; altogether amounting to 58 species. Of these, 30 (including three described by me in the 'Memoirs of the Geological Survey' whilst preparing this Monograph) are new. The Post-tertiary species are included in this Monograph for the sake of convenience, and to render the subject as perfect as circumstances will permit. The recent forms which have become fossilized in the Post-tertiary deposits, either of fresh-water, estuarine, or marine origin, not only complete the geological series up the present day, but are of considerable value in assisting us in the identification of some carapace-remains, otherwise obscure in their relations. The list of these later species of Ostracoda may be also regarded as a not uninteresting addition to the valuable resume of the Molluscan fauna of the Post-tertiary and Pleistocene eras, with which Mr. S. V. Wood has enriched his elaborate and valuable 'Monograph on the Mollusca of the Crag.' 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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Excerpt from A Supplementary Monograph: Of the Tertiary Entomostraca of England The Tertiary Bntomostraca (Ostracoda) of England, at first treated of in a Monograph for the Palontographical Society in 1857, were revised by one of us in the 'Geological Magazine, ' 1870, pp. 155 - 159. The researches of G. O. Sars and G. S. Brady, with D. Robertson and others, elucidating the relationships of the genera and species among recent forms, gave effect in a great degree to that revision; and their continued labours have further helped us. Since the publication of the Revision, eighteen years ago, besides there being some additional corrections to be noticed, several new species have come to hand, late research in the fossiliferous deposits of Tertiary age having enabled our friends to add to the collections we have made for ourselves, so that the known English Tertiary forms are now upwards of one hundred in number. The British Post-Tertiary species are still more numerous. Some of the latter were described in the Monograph for year 1855 (dated on title-page 1856, but issued in 1857), and what relates to them in the new researches is here noticed. The notices and descriptions of revised and new forms will be arranged according to their alliances, and as far as possible in a Natural Order, in accordance with the grouping of genera adopted by Dr. G. S. Brady in his latest memoirs on recent Ostracoda. 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.