The Cytogeny of Podarke Obscura (Verrill)
The Cytogeny of Podarke Obscura (Verrill)

Author: Aaron Louis Treadwell

Publisher: Forgotten Books

Published: 2018-03-20

Total Pages: 92

ISBN-13: 9780365097150

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Excerpt from The Cytogeny of Podarke Obscura (Verrill): A Dissertation While emitting the sexual products, the female usually crawls slowly along the bottom of the dish, the eggs stream ing out from both sides of the body through openings at the base of the parapodia. Occasionally one will be found swim ming with considerable rapidity during this process. The males are usually much more active at this time, though there is never anything like the amount of activity displayed by some other free-swimming annelids, e.g., Nereis. 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.

The Cytogeny of P O D A R K E O B S C U R a (Verrill)
The Cytogeny of P O D A R K E O B S C U R a (Verrill)

Author: Aaron Louis Treadwell

Publisher: Palala Press

Published: 2016-05-17

Total Pages: 112

ISBN-13: 9781356912636

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This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work was reproduced from the original artifact, and remains as true to the original work as possible. Therefore, you will see the original copyright references, library stamps (as most of these works have been housed in our most important libraries around the world), and other notations in the work.This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work.As a reproduction of a historical artifact, this work may contain missing or blurred pages, poor pictures, errant marks, etc. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.

Animal Evolution : Interrelationships of the Living Phyla
Animal Evolution : Interrelationships of the Living Phyla

Author: Claus Nielsen

Publisher: OUP Oxford

Published: 2001-03-08

Total Pages: 578

ISBN-13: 0191588520

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Animal Evolution is a complete analysis of the evolutionary interrelationships and myriad diversity of the animal kingdom. Using modern phylogenetic reasoning based on characters from an extensive review of morphology, including ultrastructure, and embryology, each phylum is analysed to ascertain its monophyly and hence its ancestral characters. These ancestral characters are then used to construct a complete phylogenetic tree of the extant animal phyla. This new edition of Animal Evolution brings the subject fully up to date including some new ideas and emphases, as well as new bibliographic data. It also includes new chapters on the use of computer programmes and on the use of the new molecular techniques to create phylogenies, both techniques that have grown in prevalence in the field since the first edition was published. Illustrated throughout with finely detailed line drawings and clear diagrams. From reviews of the first edition of Animal Evolution: 'A clear and engaging style exemplified by a series of superbly concise descriptions of the phyla.... These are complemented by excellent illustrations.... The volume belongs on every biologist's bookshelf.' Simon Conway- Morris, Nature 'Texts like these constitute the very cream of taxonomic literature.... It really is a joy to read... and in my opinion it constitutes a highly recommended book for all zoologists. I think it is also particularly suited for seminars on animal classification for both undergraduate and graduate students.' JC von Vaupel Klein, Crustaceana 'I highly recommend this book as a fascinating theory of animal relationships, and an excellent summary of the phylogenetically informative aspects of the biology of the whole animal kingdom.' Maximilian J Telford, Systematic Entomology