Chemical Zoology, Volume VII, Mollusca, provides zoologists and chemists with an overview of the state of knowledge in chemistry and zoology and an introduction to the existing literature. The treatise is arranged by phyla, an arrangement which seemed most suitable for presenting chemical information of zoological significance and for bringing to the attention of chemists those aspects of biochemical diversity of greatest potential interest. Each section, dealing with a major phylum, is introduced by a discussion of the biology and systematics of the group. This is followed by chapters dealing with various aspects of the biochemistry of the group. This volume contains 14 chapters and begins with a discussion of the molluscan framework. This is followed by separate chapters on shell structure and formation, respiratory proteins, and nitrogen metabolism in molluscs. Subsequent chapters deal with molluscan byssus fibers, chemical embryology, pigments, carbohydrate metabolism, lipid metabolism and distribution, endocrinology, anisosmotic and isosmotic cellular regulation, pharmacology, and biochemical ecology.