Download or read book Tubicolous Annelids of the Tribes Sabellides and Serpulides from the Pacific Ocean written by Katharine Jeannette Bush and published by . This book was released on 1905 with total page 246 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Reproductive Strategies and Developmental Patterns in Annelids written by Adriaan W.C. Dorresteijn and published by Springer Science & Business Media. This book was released on 2013-04-18 with total page 314 pages. Available in PDF, EPUB and Kindle. Book excerpt: The fascination of the Annelida to scientists lies in the beauty of their structures and the functionality of their body plan, the tremendous adaptive radiation which has made it possible for these animals to colonize almost all marine, limnic and terrestrial biotopes. In doing so they have evolved a great variety of life forms, and their reproduction and development are correspondingly diverse, with many modes and patterns unique in the animal kingdom. In this special volume recent progress in this broad research area is presented by 26 specialists, in general through surveys or treatments of selected examples. Some of them review important annelid taxa such as the Nereididae, Syllidae, Spionidae, Cirratulidae, Clitellata, and Pogonophora; others analyse reproductive and developmental structures and phenomena in annelids, e.g. segmental organs, sex pheromones, oogenesis, mating systems, sperm types, life cycles, larval settlement, cleavage and symmetry of embryos, or discuss controversial approaches to annelid systematics. The book will be of interest to all zoologists who work with annelids as well as to embryologists and other researchers in reproductive biology.

Download or read book Bibliography of Polychaeta Volume 3 written by and published by Charlene Long. This book was released on with total page 977 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book On Recent Deep Sea Dredging Operations in the Gulf of St Lawrence written by and published by . This book was released on 1874 with total page 9 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book International Catalogue of Scientific Literature written by and published by . This book was released on 1908 with total page 1440 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book A Systematic Revision of the Sabellidae Caobangiidae Sabellongidae Complex Annelida Polychaeta written by Kirk Fitzhugh and published by . This book was released on 1989 with total page 112 pages. Available in PDF, EPUB and Kindle. Book excerpt: "A cladistic analysis is conducted, encompassing a series of hierarchical levels within the Sabellidae-Caobangiidae-Sabellongidae complex. Generic relationships within this complex are examined using 36 genera and 43 characters. Outgroup comparisons with the Serpulidae s.s. and Spirorbidae are initially suggested. It is argued, however, that maintaining the Spirorbidae results in the Serpulidae being paraphyletic. Therefore, the Serpulidae s.l. (including spirorbids) are used as the outgroup. The possibility of using the Terebellomorpha (= Terebellida) as an outgroup is discussed. The more inclusive relationship between the orders Sabellida and Spionida is examined, leading to the conclusion that the Spionida is paraphyletic by way of recognizing the Sabellida. Sixteen most parsimonious cladograms are found, differing only slightly in the placement of some genera. Caobangia Giard and Sabellonga Hartman, representing the monotypic Caobangiidae and Sabellongidae, respectively, fall within the Sabellidae. In order to define the Sabellidae as monophyletic, Caobangia and Sabellonga must be placed in this family. Present sabellid subfamilies are either paraphyletic or polyphyletic, except for the monotypic Myxicolinae. Revised monophyletic subfamilies are suggested, comprising a more restricted Fabriciinae and expanded Sabellinae. Caobangia is placed into the former subfamily, while Sabellonga is moved to the latter. The Myxicolinae is not recognized, with Myxicola Koch in Renier being placed in the Sabellinae. Genera of the revised Sabellidae are reviewed in light of the characters used in the cladistic analysis. Several genera are poorly defined in terms of monophyly (e.g., Oriopsis Caullery and Mesnil, Jasmineira Langerhans), while six genera are not defined by synapomorphies: Chone Kröyer, Sabellastarte Kröyer, Perkinsiana Knight-Jones, Pseudopotamilla Bush, Eudistylia Bush, and Schizobranchia Bush. Setal transformation series are discussed, suggesting the presence of regulatory mechanisms localized within a particular body region or operating throughout the thorax and abdomen. Such mechanisms appear to allow for considerable structural lability, resulting in convergence of thoracic and abdominal setal forms from different plesiomorphic states. In some cases, it also appears as though abdominal setal forms may be controlled by segment age and location along the body. Changes in thoracic or abdominal setal forms in notopodia and neuropodia within a particular segment appear to be independent of one another"--P. 4.

Download or read book Contemporary Review written by and published by . This book was released on 1879 with total page 726 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Scientific Memoirs by Officers of the Medical and Sanitary Departments of the Government of India written by India. Medical department and published by . This book was released on 1901 with total page 216 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Contemporary Review written by and published by . This book was released on 1879 with total page 736 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Report of the President written by Queen's University of Belfast and published by . This book was released on 1870 with total page 124 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Webster s New International Dictionary of the English Language Based on the International Dictionary 1890 and 1900 written by William Torrey Harris and published by . This book was released on 1911 with total page 1394 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book International Catalogue of Scientific Literature 1901 1914 written by and published by . This book was released on 1907 with total page 1200 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The American Journal of Science written by and published by . This book was released on 1907 with total page 524 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Systematics and Diversity of Annelids written by Maria Capa and published by MDPI. This book was released on 2021-08-18 with total page 520 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this Special Issue, we address the state of the art of the systematics of the main annelid groups and the improvements in the diversity they hold, with special emphasis on the latest discoveries in well-studied areas, expeditions to unsurveyed areas or environments, or the use of novel techniques that allow for the improvement of biodiversity knowledge. We are hoping that this Special Issue will provide a platform facilitating a review of current knowledge on the subject, identifying current research problems, as well as indicating directions and research trends for the future.

Download or read book The Polychaete Worms written by Kristian Fauchald and published by . This book was released on 1977 with total page 206 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Notes on the Natural History of the Strait of Magellan and West Coast of Patagonia Made During the Voyage of H M S Nassau in the Years 1866 67 68 69 written by Robert Oliver Cunningham and published by . This book was released on 1871 with total page 940 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Zoological Record written by and published by . This book was released on 1908 with total page 1402 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Zoological Record is published annually in separate sections. The first of these is Comprehensive Zoology, followed by sections recording a year's literature relating to a Phylum or Class of the Animal Kingdom. The final section contains the new genera and subgenera indexed in the volume." Each section of a volume lists the sections of that volume.