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  • 1
    Online Resource
    Online Resource
    San Diego :Elsevier Science & Technology,
    Keywords: Mollusks. ; Electronic books.
    Type of Medium: Online Resource
    Pages: 1 online resource (535 pages)
    Edition: 1st ed.
    ISBN: 9781483289373
    Series Statement: The Mollusca Series ; v.Volume 11
    Language: English
    Note: Front Cover -- Form and Function -- Copyright Page -- Table of Contents -- General Preface -- Preface -- C. M. Yonge: A Tribute -- Contents of Other Volumes -- Chapter 1. Introduction -- I. Molluscan Characters -- II. Molluscan Origins -- III. The Skin -- IV. The Foot -- V. The Shell -- VI. Body Cavities and the Circulatory System -- VII. Summary -- References -- Chapter 2. Molluscan Skin (excluding Cephalopods) -- I. Introduction and Perspectives -- II. Structure of the Epidermis -- III. Functional Activities of the Epidermis -- IV. Conclusions -- References -- Chapter 3. The Skin of Cephalopods (Coleoids): General and Special Adaptations -- I. Introduction and Perspectives -- II. General -- III. Other Special Structures -- IV. The Skin as a Barrier -- V. Behavior: The Skin as an Organ of Expression and Concealment -- References -- Chapter 4. Shell Structure -- I. Introduction -- II. Outer Shell Layer (Periostracum) -- III. Inner Shell Layers -- IV. Tubulation -- V. Hinge System -- VI. Distribution of Shell Structures -- VII. Structure of Organic Matrix -- VIII. Cephalopod Shell Structure -- IX. Eggshells -- X. Larval Shell -- References -- Chapter 5. Adaptive Morphology of the Shell in Bivalves and Gastropods -- I. Introduction and Perspectives -- II. Locomotion -- III. Fixation and Stability -- IV. Thwarting Predation -- V. Feeding and Respiration -- VI. Reproduction -- VII. Evolutionary Convergence -- References -- Chapter 6. Form and Function of the Nautilus Shell: Some New Perspectives -- I. Introduction -- II. Shell Morphology -- References -- Chapter 7. Functional Morphology and Adaptive Patterns of the Teuthoid Gladius -- I. Summary and Perspectives -- II. Introduction -- III. Chemical Composition -- IV. Adaptive Patterns of Functional Morphology -- V. Fin Support -- VI. Sexual Dimorphism -- VII. Other Functions -- References. , Chapter 8. Shell Form and Strength -- I. Perspectives -- II. Mechanical Properties of Molluscan Shell Materials -- III. Shell Architecture -- References -- Chapter 9. The Arrangement and Function of Molluscan Muscle -- I. Introduction -- II. Mechanics of Hydrostatic Skeletons -- III. Examples of Muscular-Hydrostats -- IV. Hydrostatic Skeletons with Extensive Fluid-Filled Cavities -- V. Summary and Perspectives -- References -- Chapter 10. The Pallial Cavity -- I. Introduction -- II. Early Evolution -- III. Gastropoda -- IV. Scaphopoda -- V. Bivalvia -- References -- Chapter 11. The Mantle Muscle and Mantle Cavity of Cephalopods -- I. Introduction -- II. The Mantle Cavity of Nautilus -- III. The Mantle Cavity in Coleoids -- References -- Chapter 12. The Structure and Function of Molluscan Digestive Systems -- I. Introduction -- II. Caudofoveata -- III. Solenogastres -- IV. Placophora -- V. Tryblidiida -- VI. Gastropoda -- VII. Scaphopoda -- VIII. Bivalvia -- IX. Siphonopoda -- X. Comparative Analysis -- XI. Conclusions and Perspectives -- References -- Chapter 13. Excretory Systems of Molluscs -- I. Introduction -- II. Monoplacophora -- III. Polyplacophora -- IV. Aplacophora -- V. Scaphopoda -- VI. Bivalvia -- VII. The Descendants of Cyclomyan Monoplacophorans -- VIII. Cephalopoda -- IX. Gastropoda -- X. The Site of Filtration in Gastropods -- XI. Perspectives -- References -- Chapter 14. Luminescent Organs -- I. Introduction -- II. Gastropoda -- III. Bivalvia -- IV. Cephalopoda -- V. Conclusions and Perspectives -- References -- Index to Genera -- Subject Index.
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  • 2
    Online Resource
    Online Resource
    San Diego :Elsevier Science & Technology,
    Keywords: Mollusks. ; Electronic books.
    Type of Medium: Online Resource
    Pages: 1 online resource (382 pages)
    Edition: 1st ed.
    ISBN: 9781483275529
    Language: English
    Note: Front Cover -- Paleontology and Neontology of Cephalopods -- Copyright Page -- Table of Contents -- General Preface -- Preface -- Dedication -- Contents of Other Volumes -- Chapter 1. Introduction -- References -- Chapter 2. Main Features of Cephalopod Evolution -- I. Introduction -- II. Generalities about Fossil Cephalopods -- III. Classification of Fossil Cephalopods -- IV. The Oldest Cephalopods -- V. The Wanwankou Explosion -- VI. The Eclipse of the Cephalopods in the Latest Cambrian and Their Early Ordovician Revival -- VII. The Arenigian (Middle Canadian) Explosion -- VIII. Middle Ordovician Acme -- IX. Post-Middle Ordovician Patterns -- X. Origin of Ammonoids -- XI. Later Paleozoic Cephalopods -- XII. Mesozoic Patterns -- XIII. Fossil Coleoidea -- Acknowledgments -- References -- Chapter 3. Fossil "Octopods"- A Critical Review -- I. Introduction -- II. Fossil Specimens -- IIl. Discussion -- IV. Summary and Perspectives -- Acknowledgments -- References -- Chapter 4. The Gladius in Coleoid (Cephalopoda) Evolution -- I. Introduction -- II. Early Coleoids -- III. Archaic "Squids -- IV. Plesioteuthis: The First Modern Squid? -- V. The Gladius in Recent Teuthids -- VI. Evolution of Recent Teuthid Diversity -- Acknowledgments -- References -- Chapter 5. The Buccal Mass of Fossil and Recent Cephalopoda -- I. Introduction -- II. Mouthparts of Recent Cephalopoda -- III. Mouthparts of Fossil Cephalopoda -- IV. Discussion -- V. Summary and Perspectives -- Acknowledgments -- References -- Chapter 6. Beaks of Living Coleoid Cephalopoda -- I. Introduction -- II. Evolution of Structural Features -- III. Evolution of Shape -- IV. Conclusions -- V. Summary and Perspectives -- Acknowledgments -- References -- Chapter 7. Cephalopod Hooks, Both Recent and Fossil -- I. Introduction -- II. Fossil Hooks -- III. Hooks of Recent Coleoids. , IV. Evolution of the Hook -- V. Discussion -- VI. Summary and Perspectives -- Acknowledgments -- References -- Chapter 8. Statoliths of Fossil Coleoid Cephalopods -- I. Introduction -- II. General Description -- III. Cenozoic Statoliths -- IV. Jurassic Statoliths -- V. General Conclusions -- VI. Summary and Perspectives -- Acknowledgment -- References -- Chapter 9. Statoliths from Living Species of Cephalopods and Evolution -- I. Introduction -- II. Statolith Structure and Form -- III. Variation in Shape of the Decapod Statolith -- IV. Function and Form -- V. Evolution of Statoliths -- VI. Summary and Perspectives -- References -- Chapter 10. Cephalopod Development and Evolutionary Concepts -- I. Introduction -- II. Process of Development -- III. Homologies with Other Mollusca -- IV. Conclusions -- References -- Chapter 11. Evolution of Buoyancy and Locomotion in Recent Cephalopods -- I. Introduction -- II. Methods of Maintaining Position in Midwater -- III. Evolution -- IV. Conclusions -- V. Summary and Perspectives -- References -- Chapter 12. Evolution of the Cephalopod Brain -- I. Introduction -- II. Structure and Function -- III. Evolution of the Cephalopod Brain -- References -- Chapter 13. Evolution of the Cephalopod Statocyst -- I. Introduction -- II. Structure and Function -- III. Evolution of Statocysts -- References -- Chapter 14. Photophore Structure and Evolution within the Enoploteuthinae (Cephalopoda) -- I. Introduction -- II. Structure of Integumental Photophores -- III. Discussion -- IV. Summary and Perspectives -- Acknowledgments -- References -- Chapter 15. Evolution and Phylogenetic Relationships of Deep-Sea Octopods (Cirrata and Incirrata) -- I. Introduction -- II. Modifications for Life in the Deep Sea -- III. The Cirrates -- IV. The Incirrates -- V. General Evolutionary Considerations -- Acknowledgments -- References. , Chapter 16. Generic Interrelationships within the Ommastrephidae (Cephalopoda) -- I. Introduction -- II. Selected Characters -- III. Discussion -- Acknowledgments -- References -- Chapter 17. Evolution of the Cephalopod Family Cranchiidae (Oegopsida) -- I. Introduction -- II. Intergeneric Relationships -- III. Biogeography -- IV. Concluding Remarks -- Acknowledgments -- Note Added in Proof -- References -- Chapter 18. Mediterranean Cephalopod Fauna -- I. Introduction -- II. Gross Morphology of the Mediterranean and Faunal Exchange -- III. Numerical Representation of Cephalopod Taxa in the Mediterranean -- IV. Species Records and Geographic Distribution -- V. Origins and Dispersion of the Fauna -- VI. Concluding Remarks -- References -- Chapter 19. Evolution of Recent Cephalopods- A Brief Review -- I. Introduction -- II. The Major Groups -- III. Family Relationships -- IV. Subfamily Relationships -- V. Conclusions and Prospects -- References -- Index to Genera -- Subject Index.
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  • 3
    Online Resource
    Online Resource
    Saint Louis :Elsevier Science & Technology,
    Keywords: Mollusks -- Evolution. ; Mollusks -- Origin. ; Electronic books.
    Description / Table of Contents: FROM THE GENERAL PREFACE: This multivolume work, The Mollusca, had its origins in the mid 1960s with the publication of two volumes entitled Physiology of Mollusca and edited by Wilbur and Yonge. In those volumes, 27 authors collaborated to summarize the status of the conventional topics of physiology as well as biochemistry, reproduction and development, and ecology. Within the past two decades, there has been a remarkable burgeoning of molluscan research generally and with it the development of new fields of investigation. During the same period, several excellent books on molluscs have appeared. However, they do not provide adequate information on the many recent advances or give the breadth of perspective of current knowledge of the phylum. Clearly, there was need for a larger work with a comprehensive treatment of major areas of molluscan research. The Mollusca, as a series of 12 volumes, attempts to fulfill this objective. Even here, practical considerations have meant that certain aspects of molluscan research have not been included. Each major area is treated by several authors, each reviewing his or her special field. The areas are structure and function, metabolic biochemistry, molecular biomechanics, environmental biochemistry, physiology, ecology, reproduction and development, neurobiology and behavior, and evolution. Throughout, the authors have given emphasis to recent advances and present status of molluscan biology. In so doing, directions of future research have become evident. The Mollusca is intended to serve several disciplines--zoology, biochemistry, physiology, and paleontology. It will prove useful to researchers and to all others with interests in molluscs. FROM THE PREFACE TO VOLUME 10: Recent events that have stimulated a great surge of investigation into the evolution of the Mollusca include the discovery of
    Type of Medium: Online Resource
    Pages: 1 online resource (512 pages)
    Edition: 1st ed.
    ISBN: 9781483289366
    Series Statement: The Mollusca Series ; v.Volume 10
    DDC: 594
    Language: English
    Note: Front Cover -- Evolution -- Copyright Page -- Table of Contents -- Contributors -- General Preface -- Preface -- Outline Classification of Mollusca -- Contents of Other Volumes -- Chapter 1. Origin and Diversification of the Mollusca -- I. Introduction -- II. Origin of the Mollusca -- III. The Development of Higher Taxa -- IV. Ultrastructural Evolution of the Molluscan Shell -- V. Classification of Cambrian Molluscs -- VI. Summary and Perspective -- References -- Chapter 2. Early Evolution and the Primitive Groups -- I. Introduction -- II. Basic Organization of the Primitive Groups -- III. Early Evolution of Mollusca -- IV. Final Synopsis -- References -- Chapter 3. Evolution within the Gastropoda: Prosobranchia -- I. Introduction -- II. Basic Organization -- III. Adaptive Radiation -- IV. Evolutionary Processes -- V. Classification -- References -- Chapter 4. Limpets: Evolution and Adaptation -- I. Introduction -- II. Modes of Feeding -- III. Limpet Form and Physical Factors -- IV. Adaptations to Predators -- V. Competition -- VI. Future Research -- References -- Chapter 5. Aspects of Evolution within the Opisthobranchs -- I. Introduction -- II. Origins and Paleontology -- III. Comparative Anatomy and Embryology -- IV. Cytotaxonomy -- V. Discussion of Some Orders -- VI. Possible Phylogenesis of Orders and Organs -- References -- Chapter 6. Origin and Diversification of Pulmonate Land Snails -- I. Introduction -- II. Origin of the Land Pulmonates -- III. Diversification of the Land Pulmonates -- IV. Summary and Prospectus -- References -- Chapter 7. The Early Evolution of Diasome Molluscs -- I. Introduction -- II. Origin of Rostroconchs -- III. Stratigraphy and Evolution of Rostroconchs -- IV. Evolution of Early Paleozoic Pelecypods -- V. Evolution of Scaphopods -- VI. Summary and Perspective -- References. , Chapter 8. Recent Bivalvia: Their Form and Evolution -- I. Introduction -- II. The Class Bivalvia -- III. Subclass Protobranchia -- IV. Subclass Lamellibranchia -- V. Perspective -- References -- Chapter 9. Adaptive Radiation in the Anomalodesmata -- I. Introduction -- II. Classification -- III. Anomalodesmatan Characters -- IV. The Fossil Anomalodesmata -- V. The Extant Superfamilies -- VI. Phylogenetic Origins and Lineages -- VII. Discussion -- References -- Chapter 10. Distribution of Adaptations: A Comparison between the Functional Shell Morphology of Freshwater and Marine Pelecypods -- I. Introduction -- II. Functional Shell Morphology -- III. Shell Form in Freshwater Clams -- IV. Geographical Differences among Regions -- V. Selection in the Freshwater Environment -- VI. Possible Artifacts -- VII. Summary and Conclusions -- References -- Index to Genera -- Subject Index.
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  • 4
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 165 (1950), S. 397-398 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] The ligament of Anodonta, like that of many other bivalves, consists of two main layers, the outer and the inner6. The former is amber in colour and appears to consist largely of tanned proteins ; the inner layer is calcified, is white in colour and only occasionally shows signs of slight tanning. ...
    Type of Medium: Electronic Resource
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  • 5
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 266 (1977), S. 852-853 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] When Scrobicularia were transferred from aerated 30 %0 seawater to aerated 6%0 seawater, the concentrations of Na+ and other ions, except Ca2+, in mantle cavity fluid and blood fell gradually to the level of the external medium within 14 d (Fig. 1). At first the valves remained closed for long ...
    Type of Medium: Electronic Resource
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  • 6
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 218 (1968), S. 96-98 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] This mechanism occurs in such diverse soft-bodied burrowing animals as, for example, the anemone, Peachia5, the polychaete worms, Arenicola3 and Nephtys6, a variety of molluscs including Ensis7, Dentalium8, Natica9, the holothurian, Thione and Sipunculus2. Most of these animals are circular in ...
    Type of Medium: Electronic Resource
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  • 7
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 214 (1967), S. 832-833 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] In this investigation, an impedance pneumograph, designed to detect pulsatile changes in volume, was connected to a pair of electrodes attached to an experimental animal and the voltage fluctuations caused by movements were fed to a multichannel pen recorder. Fine wire electrodes were attached by ...
    Type of Medium: Electronic Resource
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  • 8
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 213 (1967), S. 1050-1051 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Using an impedance pneumograph, a small oscillatory current (2 (jiamp, 25 kc/s) may be passed between two fine wire electrodes attached one to each valve of a bivalve (Fig. 1, E-L). Any movement of the valves affected the impedance between the electrodes and a voltage pro-portional to the change in ...
    Type of Medium: Electronic Resource
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  • 9
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 180 (1957), S. 1492-1492 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] One type of cell stains blue in Mallory's triple stain, gives positive results with both alcian blue and the periodic acid-Schiff reaction, and shows gamma meta-chromasia with toluidine blue. The contents of these cells also exhibit a capacity to bind methylene blue at below pH 4, which indicates ...
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  • 10
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 171 (1953), S. 73-75 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] THE ligament in the Lamellibranchia should be considered in relation to the different layers of the shell, of which it is an integral part, and so in terms of the areas responsible for the secretion of these layers. As is well known, the shell consists of a superficial periostracum and underlying ...
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