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Annulosa By W E Leach Extracted From Vol 1 Of The Supplement To The Encyclopaedia Britannica
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Book Synopsis Annulosa. [By W. E. Leach. Extracted from vol. 1 of the Supplement to the Encyclopædia Britannica.] by :
Download or read book Annulosa. [By W. E. Leach. Extracted from vol. 1 of the Supplement to the Encyclopædia Britannica.] written by and published by . This book was released on 1824 with total page 86 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Proceedings of The Academy of Natural Sciences (Vol. 145, 1994) by :
Download or read book Proceedings of The Academy of Natural Sciences (Vol. 145, 1994) written by and published by Academy of Natural Sciences. This book was released on with total page 244 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Nineteenth Century Short-title Catalogue: phase 1. 1816-1870 by :
Download or read book Nineteenth Century Short-title Catalogue: phase 1. 1816-1870 written by and published by . This book was released on 1984 with total page 780 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Annelida Basal Groups and Pleistoannelida, Sedentaria I by : Günter Purschke
Download or read book Annelida Basal Groups and Pleistoannelida, Sedentaria I written by Günter Purschke and published by Walter de Gruyter GmbH & Co KG. This book was released on 2019-03-18 with total page 1241 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is the first in a series of 4 volumes in the Handbook of Zoology series about morphology, anatomy, reproduction, development, ecology, phylogeny and systematics of Annelida. This first volume covers members of the so-called basal radiation and the first part of Sedentaria. It is supplemented by chapters on the history of annelid research, their fossil record, and an introduction to the phylogeny of annelids and their position in the tree of life. In the latter chapter the history of their systematic is reviewed giving an almost complete picture of systematic-scientific progress especially in the past years which changed our view on annelid phylogeny dramatically. The most basal annelids, lately united as Palaeoannelida, represent two families of aberrant polychaetes formerly often suggested to be highly derived which now give us a fresh look on how the ancestral annelid may have looked like. These lack certain key characters such as nuchal organs and possess rather simple nervous systems which now likely represent primitive character states. In this basal radiation the first taxon of apparently unsegmented and achaetigerous animals is positioned, the Sipuncula. Most likely another group of platyhelminth-like and unsegmented and even chaeta-lees annelids, Lobatocerebridae falls into this basal radiation. The section of Sedentaria starts with Orbiniida, a taxon characterized by elongated, thread-like worms which do not have anterior appendages like palps and comprises several families representing members of the Meiofauna. These minute worms often inhabiting the interstitial spaces in marine sands are suggested to have evolved by progenesis. The second higher taxon is represented by Cirratuliformia comprising nine families of typical sedentary polychaetes each of which showing a remarkable variation of the annelid body plan. Members of this taxon usually exhibit many annelid characters but certain also lack the most typical prostomial appendages, the palps.
Book Synopsis Supplement to the Fourth, Fifth, and Sixth Editons of the Encyclopædia Britannica. With Preliminary Dissertations on the History of the Sciences. Ilustrated by Engravings. Volume First [- Sixth] by :
Download or read book Supplement to the Fourth, Fifth, and Sixth Editons of the Encyclopædia Britannica. With Preliminary Dissertations on the History of the Sciences. Ilustrated by Engravings. Volume First [- Sixth] written by and published by . This book was released on 1824 with total page 956 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The British Library General Catalogue of Printed Books to 1975 by : British Library
Download or read book The British Library General Catalogue of Printed Books to 1975 written by British Library and published by . This book was released on 1977 with total page 536 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The British Library General Catalogue of Printed Books to 1975 by : British Library (London)
Download or read book The British Library General Catalogue of Printed Books to 1975 written by British Library (London) and published by . This book was released on 1979 with total page 534 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Encyclopaedia Britannica: Or A Dictionary Of Arts, Sciences, And Miscellaneous Literature; Enlarged And Improved by :
Download or read book Encyclopaedia Britannica: Or A Dictionary Of Arts, Sciences, And Miscellaneous Literature; Enlarged And Improved written by and published by . This book was released on 1810 with total page 1816 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis General Catalogue of Printed Books by : British Museum. Department of Printed Books
Download or read book General Catalogue of Printed Books written by British Museum. Department of Printed Books and published by . This book was released on 1965 with total page 642 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Proceedings of the Academy of Natural Sciences of Philadelphia by : Academy of Natural Sciences of Philadelphia
Download or read book Proceedings of the Academy of Natural Sciences of Philadelphia written by Academy of Natural Sciences of Philadelphia and published by . This book was released on 1994 with total page 252 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Publications of the Academy of Natural Sciences of Philadelphia": v. 53, 1901, p. 788-794.
Book Synopsis British Marine Amphipoda by : Roger J. Lincoln
Download or read book British Marine Amphipoda written by Roger J. Lincoln and published by . This book was released on 1979 with total page 672 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Bulletin of the British Museum (Natural History). by : British Museum (Natural History)
Download or read book Bulletin of the British Museum (Natural History). written by British Museum (Natural History) and published by . This book was released on 1970 with total page 88 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Revision of Sternaspis Otto, 1821 (Polychaeta, Sternaspidae) by : Kelly Sendall
Download or read book Revision of Sternaspis Otto, 1821 (Polychaeta, Sternaspidae) written by Kelly Sendall and published by PenSoft Publishers LTD. This book was released on 2013-04-08 with total page 82 pages. Available in PDF, EPUB and Kindle. Book excerpt: The peanut-shaped sternaspid polychaetes have been known since 1760 when Plancus named them as Mentula cucurbitacea marina. Sternaspids are common and abundant in soft bottoms. Some authors suggested that only one species should be recognized, whereas others regard a few species very widely distributed and variable depths. Delineating species was problematic; the ventro-caudal shield was disregarded or barely used for identifying species. In this contribution the ventral shield is evaluated and its diagnostic potential is confirmed. The revision of Sternaspis is based upon type or topotype materials. Sternaspid body, introvert hooks and shield show three distinct patterns: two genera have 7 abdominal segments and tapered introvert hooks, and one genus has 8 abdominal segments and spatulate introvert hooks. The ventro-caudal shield has 3 different patterns: stiff with ribs, and sometimes concentric lines, stiff with feebly-defined ribs but no concentric lines, and soft with firmly adhered sediment particles. Sternaspis is restricted to include species with 7 abdominal segments, falcate introvert hooks, and stiff shields, often exhibiting radial ribs, concentric lines or both. Two new genera incorporate the remaining species: Caulleryaspis has falcate introvert hooks, 7 abdominal segments, and soft shields with sediment particles firmly adhered on them. Petersenaspis has spatulate introvert hooks, 8 abdominal segments, and stiff shields with poorly-defined ribs but no concentric line. The geographic range of most species is smaller than previously indicated. Keys to genera and to all species are also included.
Book Synopsis Smithsonian Contributions to Zoology by :
Download or read book Smithsonian Contributions to Zoology written by and published by . This book was released on 1987 with total page 586 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis An Interdisciplinary Bibliography of Freshwater Crayfishes (Astacoidea and Parastacoidea) from Aristotle Through 1985 by : C. W. Hart
Download or read book An Interdisciplinary Bibliography of Freshwater Crayfishes (Astacoidea and Parastacoidea) from Aristotle Through 1985 written by C. W. Hart and published by . This book was released on 1987 with total page 458 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ruim 11.000 literatuurverwijzingen
Book Synopsis An Interdisciplinary Bibliography of Freshwater Crayfishes (Astacoidea and Parastacoidea) from Aristotle Through 1985, Updated Through 1987 by : C. W. Hart
Download or read book An Interdisciplinary Bibliography of Freshwater Crayfishes (Astacoidea and Parastacoidea) from Aristotle Through 1985, Updated Through 1987 written by C. W. Hart and published by . This book was released on 1989 with total page 512 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Catalogue of the Smaller Arachnid Orders of the World by : Mark S. Harvey
Download or read book Catalogue of the Smaller Arachnid Orders of the World written by Mark S. Harvey and published by CSIRO PUBLISHING. This book was released on 2003 with total page 400 pages. Available in PDF, EPUB and Kindle. Book excerpt: Contains a valuable summary of bibliographic information, enabling readers to access the worldwide literature for these smaller orders.