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This volume deals exclusively with the phylum Cnidaria, the group of animals that, among others, contains corals, anemones and jellyfishes. All three classes in the phylum - the Hydrozoa, Scyphozoa, and Anthozoa - are discussed in details. Chapters on evolution and reproduction biology of the cnidarians are also included. Several scientists, all experts in their individual fields, have contributed to this volume. With their help and that of scientific and popular literature, we have tried to make the content as up to date as possible. You will therefore find, not only an extensive list of references, but also a wealth of information never before grouped together in a popular book dealing with the cnidarians. The text is focused, both on the biology of the group, as well as on how to keep cnidarians successfully in aquaria. The book also contains more than 960 high-quality photographs showing different groups of animals in their natural habitat and illustrating details of their biology, as well as their growth and survival in "The Modern Coral Reef Aquarium".

What light do fossils shed on the deep history of life's most diverse phylum, the Arthropoda? Are the interrelationships between major groups of arthropods―crustaceans, chelicerates, and tracheates―resolved the same way whether or not fossils are included? How should we combine evidence from extinct and extant taxa? These are the central questions of Arthropod Fossils and Phylogeny.Many recent controversies in arthropod evolution have been initiated by new fossil discoveries and new interpretations of early fossils. This book examines the role that these finds and ideas have played in understanding the deep evolutionary history of arthropods. The authors of the book's seven chapters have been at the forefront of this research.Contributions include phylogeny based on DNA sequence data for living groups, cladistic analysis of the major lineages of arthropods, detailed case studies of crustaceans, chelicerates, and lobopodians, and the evolutionary significance of arthropods in Cambrian fossil sites with exceptional preservation. All contributors use cladistic methods, presenting copious new data to stimulate further research.The book will be a vital resource for paleontologists, researchers on extant arthropods interested in fossil history, and evolutionists concerned with how different kinds of systematic data should be analyzed.

The majority of undergraduate texts in invertebrate zoology (of which there are many) fall into one of two categories. They either offer a systematic treatment of groups of animals phylum by phylum, or adopt a functional approach to the various anatomical and physiological systems of the better known species. The Invertebrates is the first and only textbook to integrate both approaches and thus meet the modern teaching needs of the subject. This is the only invertebrate textbook to integrate systematics and functional approaches. The molecular systematics sections have been completely updated for the new edition. Strong evolutionary theme which reflects the importance of molecular techniques throughout. Distills the essential characteristics of each invertebrate group and lists diagnostic features to allow comparisons between phyla. New phyla have been added for the new edition. Stresses comparisons in physiology, reproduction and development. Improved layout and illustration quality. Second edition has sold 14000 copies. Nature of the first edition: 'Students will like this book. It deserves to succeed.'

Terrestrial mollusks, the second largest phylum in the animal kingdom, are vitally important to the earth’s ecology. With the publication of Land Snails and Slugs of the Pacific Northwest, a definitive and comprehensive guide to snails and slugs of Oregon, Washington, Idaho, and western Montana is finally available.  Primarily an identification guide, this richly illustrated volume offers complete information on the range of terrestrial mollusk shapes, sizes, and characteristics. It presents an overview of their habitat requirements as well as details of land snail and slug ecology, collection and preservation methods, and biogeography.  Land Snails and Slugs of the Pacific Northwest is an essential reference for biologists, horticulturalists, gardeners, and naturalists, and anyone wishing to identify species in the field.· Identification keys and species accounts for most of the 245 taxa of terrestrial slugs and snails in the region · 280 full-color photographs of 155 species and subspecies  · Range maps for most species

Terrestrial mollusks, the second largest phylum in the animal kingdom, are vitally important to the earth’s ecology. With the publication of Land Snails and Slugs of the Pacific Northwest, a definitive and comprehensive guide to snails and slugs of Oregon, Washington, Idaho, and western Montana is finally available.  Primarily an identification guide, this richly illustrated volume offers complete information on the range of terrestrial mollusk shapes, sizes, and characteristics. It presents an overview of their habitat requirements as well as details of land snail and slug ecology, collection and preservation methods, and biogeography.  Land Snails and Slugs of the Pacific Northwest is an essential reference for biologists, horticulturalists, gardeners, and naturalists, and anyone wishing to identify species in the field.· Identification keys and species accounts for most of the 245 taxa of terrestrial slugs and snails in the region · 280 full-color photographs of 155 species and subspecies  · Range maps for most species

The articles in the present volume offer an updated view of the breadth of theoretical and empirical research being carried on in the different subgroups of the Afroasiatic phylum. They are written by leading specialists and are representative of widely different perspectives and interests, from the analysis of data from scarcely known varieties to the reappraisal of old debates (such as the value of the Classical Arabic verbal forms).Reflecting a great diversity of language structures and functions, the articles are grouped into three broad areas: the phylum as such in its classificatory and typological aspects; the analysis of the intricate morphology of Afroasiatic and its developments; and the syntax of Afroasiatic in its widest sense, from the clause to the sentence and beyond. They witness how Afroasiatic, with its unsurpassed historical depth and immense geographical breadth, keeps representing a constant source of fascinating data and implications for linguistic theory.

Brought together by Winston F. Ponder and David R. Lindberg, thirty-six experts on the evolution of the Mollusca provide an up-to-date review of its evolutionary history. The Mollusca are the second largest animal phylum and boast a fossil record of over 540 million years. They exhibit remarkable anatomical diversity and include the bivalves (scallops, oysters, and clams), gastropods (limpets, snails, and slugs), and cephalopods (squid, cuttlefish, and octopus). This study treats each major taxon and supplies general information as well as overviews of evolution and phylogeny using data from different sources―morphological, ultrastructural, molecular, developmental, and from the fossil record.

This fourth volume of the encyclopedia of the Modern Coral Reef Aquarium covers important invertebrate groups: Mollusks, such as snails, slugs and bivalves, commonly found in the trade are discussed in detail. Like in previous volumes of this book series, also more obscure and rare members of the phylum are covered to the extent that this can be of value to the marine aquarist. Echinoderms ? or spiny skinned animals ? are shown in spectacular photos and the biology and aquarium care of the many interesting brittle stars, starfishes, sea cucumbers, and sea urchins are described in detail. This book also discusses the interesting group of sea squirts, or tunicates. These organisms, which are very insufficiently covered in most aquarium books, are dealt with in detailed accuracy and illustrated with over 700 magnificent color photos. As an introduction to the book, Dr. Bruce Carlson (former director of the Waikiki Aquarium/Hawaii) has written a fascinating chapter on ?The Future of Coral Reef Aquarium?. Buy this 440-page book and complete your knowledge on the invertebrates of ?The Modern Coral Reef Aquarium?!

What light do fossils shed on the deep history of life's most diverse phylum, the Arthropoda? Are the interrelationships between major groups of arthropods―crustaceans, chelicerates, and tracheates―resolved the same way whether or not fossils are included? How should we combine evidence from extinct and extant taxa? These are the central questions of Arthropod Fossils and Phylogeny.Many recent controversies in arthropod evolution have been initiated by new fossil discoveries and new interpretations of early fossils. This book examines the role that these finds and ideas have played in understanding the deep evolutionary history of arthropods. The authors of the book's seven chapters have been at the forefront of this research.Contributions include phylogeny based on DNA sequence data for living groups, cladistic analysis of the major lineages of arthropods, detailed case studies of crustaceans, chelicerates, and lobopodians, and the evolutionary significance of arthropods in Cambrian fossil sites with exceptional preservation. All contributors use cladistic methods, presenting copious new data to stimulate further research.The book will be a vital resource for paleontologists, researchers on extant arthropods interested in fossil history, and evolutionists concerned with how different kinds of systematic data should be analyzed.

Brought together by Winston F. Ponder and David R. Lindberg, thirty-six experts on the evolution of the Mollusca provide an up-to-date review of its evolutionary history. The Mollusca are the second largest animal phylum and boast a fossil record of over 540 million years. They exhibit remarkable anatomical diversity and include the bivalves (scallops, oysters, and clams), gastropods (limpets, snails, and slugs), and cephalopods (squid, cuttlefish, and octopus). This study treats each major taxon and supplies general information as well as overviews of evolution and phylogeny using data from different sources―morphological, ultrastructural, molecular, developmental, and from the fossil record.

Slugs and snails are part of the great Phylum Mollusca, a group that contains creatures as varied as the fast-moving squid or the sedentary clams, cockles and mussels. The largest group, however, are the gastropods, animals originally with a single foot and a single coiled shell.

Sponges are animals of the phylum Porifera. They are multicellular organisms which have bodies full of pores and channels allowing water to circulate through them, consisting of jelly-like mesohyl sandwiched between two thin layers of cells.

Appropriate for a laboratory course in invertebrate zoology. * Invertebrate Zoology continues to be the most current, up-to-date manual available. The popular phylum- by-phylum approach has been retained, providing a solid conceptual framework for advanced work in behavior, ecology, physiology, and related subjects. Numerous exercises for studying the structure and function of invertebrates are used. To complete each exercise, students must make observations, conduct investigations, and ask and answer questions -- all of which helps them gain a comprehensive understanding of invertebrates.

Appropriate for a laboratory course in invertebrate zoology. * Invertebrate Zoology continues to be the most current, up-to-date manual available. The popular phylum- by-phylum approach has been retained, providing a solid conceptual framework for advanced work in behavior, ecology, physiology, and related subjects. Numerous exercises for studying the structure and function of invertebrates are used. To complete each exercise, students must make observations, conduct investigations, and ask and answer questions -- all of which helps them gain a comprehensive understanding of invertebrates.

This compact marvel covers the animal kingdom from the tiniest protozoan to the mightiest mammal. Organized by classification and packed with vibrant photographs and informative detail, this visual safari covers the gamut of phylums, classes, orders, families, and genuses, including invertebrates, insects, amphibians, mammals, birds, and reptiles.Special feature panels that focus on various aspects of animal behavior including camouflage, migration, and hibernation enhance the clear layout. Easy-to-use, authoritative and a perfect gift for young animal lovers, this colorful volume is an ideal resource for the whole family.Special features include- Text that can be read section by section or as a complete article- Cross-references- Color-coded "Fact" boxes and fully annotated diagrams- Glossary and index

This fourth volume of the encyclopedia of the Modern Coral Reef Aquarium covers important invertebrate groups: Mollusks, such as snails, slugs and bivalves, commonly found in the trade are discussed in detail. Like in previous volumes of this book series, also more obscure and rare members of the phylum are covered to the extent that this can be of value to the marine aquarist. Echinoderms ? or spiny skinned animals ? are shown in spectacular photos and the biology and aquarium care of the many interesting brittle stars, starfishes, sea cucumbers, and sea urchins are described in detail. This book also discusses the interesting group of sea squirts, or tunicates. These organisms, which are very insufficiently covered in most aquarium books, are dealt with in detailed accuracy and illustrated with over 700 magnificent color photos. As an introduction to the book, Dr. Bruce Carlson (former director of the Waikiki Aquarium/Hawaii) has written a fascinating chapter on ?The Future of Coral Reef Aquarium?. Buy this 440-page book and complete your knowledge on the invertebrates of ?The Modern Coral Reef Aquarium?!

This book is about the major groups of animals, their structure, physiology and ways of life. Each chapter, except the first, deals with a taxonomic group of animals, usually a phylum or class. Brief descriptions of a few examples are followed by more detailed discussion of selected topics. Some of the topics are peculiarities of the groups (for example, the shells of molluscs and the flight of insects). Others are more widespread features or properties of animals which can be illustrated particularly well by reference to the group. Many experiments are described, on the grounds that it is as important and interesting to know how information is obtained, as to know the information itself. The text demonstrates the extraordinary diversity of animals, without becoming encumbered with excessive morphological and taxonomic information.

Invertebrates, Second Edition presents a modern survey of the 34 animal phyla (plus the Protista) and serves as both a college course text and a reference on invertebrate biology. Thorough and up-to-date, it is organized around the themes of bauplans (body plans) and evolution (phylogenetics). Each phylum is organized in a standardized fashion, treating the systematics, bauplan (support and movement, feeding and digestion, circulation and gas exchange, excretion and osmoregulation, nervous system, reproduction and development), and phylogeny. Detailed classifications, phylogenetic trees, and references for all phyla are provided. Tables summarize each phylum's defining attributes. The text is accompanied by an abundance of detailed line drawings and new to this edition color photographs. Other key changes from the First Edition (1990) include: * the incorporation of new developments in phylogenetics, developmental biology, and molecular genetics * major changes at the highest levels among the invertebrates. Three phyla that appeared in the original book—Pentastomida, Pogonophora, and Vestimentifera—no longer exist, and a new phylum, Cycliophora, has been erected. Moreover, this edition discusses recent work in molecular systematics that has shaken classic views on animal classification. * a large new section on "Kingdom Protista" (replacing "Protozoa") containing new contemporary views of these organisms (arranged in 18 phyla).

Slugs and snails are part of the great Phylum Mollusca, a group that contains creatures as varied as the fast-moving squid or the sedentary clams, cockles and mussels. The largest group, however, are the gastropods, animals originally with a single foot and a single coiled shell.

Most neurobiological research is performed on vertebrates, and it is only natural that most texts describing neuroanatomical methods refer almost exclusively to this Phylum. Nevertheless, in recent years insects have been studied intensively and are becoming even more popular in some areas of research. They have advantages over vertebrates with respect to studying genetics of neuronal development and with respect to studying many aspects of integration by uniquely identifiable nerve cells. Insect central nervous system is characterized by its compactness and the rather large number of nerve cells in a structure so small. But despite their size, parts of the insect eNS bear structural comparisons with parts of vertebrate eNS. This applies particularly to the organization of the thoracic ganglia (and spinal cord), to the insect and vertebrate visual sys­ tems and, possibly, to parts of the olfactory neuropils. The neurons that make up these areas in insects are often large enough to be impaled by microelectrodes and can be injected with dyes. Added to advantages of using a small eNS, into which the sensory periphery is precisely mapped, are the many aspects of insect behaviour whose components can be quan­ titized and which may find both structural and functional correlates within clearly defined regions of neuropil. Together, these various features make the insect eNS a rewarding object for study. This volume is the first of two that describe both classic and recent methods for neuroanatomical research on insect eNS.