Color Change Mechanisms of Cold-Blooded Vertebrates

Color Change Mechanisms of Cold-Blooded Vertebrates

1st Edition - January 1, 1963

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  • Author: H. Waring
  • eBook ISBN: 9781483258386

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Color Change Mechanisms of Cold-Blooded Vertebrates focuses on color change in vertebrates and its relation to endocrine control. The book first tackles physiological color changes in amphibians, elasmobranchs, teleosts, and cyclostomes. Topics include description of responses, nonvisual response, criticisms of the two-hormone hypothesis as applied to amphibians and elasmobranchs, and summary of teleost color change mechanisms. The publication then elaborates on physiological color changes in reptiles and biological assay of melanin-dispersing hormones, as well as generalities about reptilian color change, general statement on biological assay, and theoretical considerations. The manuscript ponders on the chemistry of melanin-dispersing hormones, mechanism of the melanophore, and actions of melanin-dispersing hormones on functions other than color change. Discussions focus on glandular origin of melanin-dispersing hormones, energy sources for melanin movement, and metabolism. The text is highly recommended for readers interested in color change in vertebrates.

Table of Contents

  • Contents



    Chapter 1. Introduction

    Chapter 2. Resume of Responses

    Origin and Nomenclature of Chromatophores

    Physiological and Morphological Color Changes and Their Measurement Classification of Responses

    Anatomy of the Pituitary and Nomenclature of Its Lobes

    Pituitary Hormones and Their Nomenclature

    Chapter 3.1 Physiological Color Changes in Amphibians

    Description of Responses

    Analysis of Ocular (Background) Responses


    Chapter 3.2 Physiological Color Changes in Elasmobranchs

    Nonvisual Response

    Secondary Ocular (Black Background) Response

    Tertiary Ocular (White Background) Response

    Criticisms of the Two-Hormone Hypothesis as Applied to Amphibians and Elasmobranchs

    Chapter 3.3 Physiological Color Changes in Teleosts





    General Summary of Teleost Color Change Mechanisms

    Appendix on Flatfish

    Chapter 3.4 Physiological Color Changes in Cyclostomes

    Chapter 3.5 Physiological Color Changes in Reptiles




    Generalities about Reptilian Color Change

    Evolution of Coordinating Mechanisms for Ocular (Background) Responses in Fish, Amphibians, and Reptiles

    Chapter 4. Biological Assay of Melanin-Dispersing Hormones

    General Statement on Biological Assay

    Historical Resume of Attempts to Assay M.D.H

    Theoretical Considerations

    In Vivo Method

    In Vitro Method

    Assay of Melanin-Dispersing Substances in Urine and Blood

    Chapter 5. Chemistry of Melanin-Dispersing Hormones

    Glandular Origin of Melanin-Dispersing Hormones

    Source Material for Preparing Extracts

    Chemistry of the Hormones

    Appendix: The Pineal Excitant Melatonin

    Chapter 6. Information About the Mechanism of the Melanophore

    Structure and Mechanics


    Energy Sources for Melanin Movement

    Chapter 7. Morphological Color Change in Response to Background



    Hormonal Basis for Morphological Change

    Chapter 8. Has Color Change Any Biological Advantage?

    Protective Coloration

    Temperature Regulation

    Chapter 9. Actions of Melanin-Dispersing Hormone on Functions other than Color Change



    Miscellaneous Effects

    Selected References: Chromatophores in Invertebrates and Warm-Blooded Vertebrates


    Subject Index

Product details

  • No. of pages: 280
  • Language: English
  • Copyright: © Academic Press 1963
  • Published: January 1, 1963
  • Imprint: Academic Press
  • eBook ISBN: 9781483258386

About the Author

H. Waring

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