About 95 per cent of all known animal species are invertebrates. A knowledge of their sexual, reproductive, and developmental biology is essential for the effective management of species that are economically useful to man or are harmful to him, his crops, and livestock. This treatise is the first to cover all aspects of reproduction and development of the entire spectrum of invertebrates terrestrial, marine, freshwater, brackish-water, free-living, and parasitic. The chapters, by leading world experts in their fields, are up-to-date and informative, and suggest a number of problems for future research.Platyhelminthes (I. Fairweather). Nemertina (M. Tarpin). Nematoda (M. Fleming). Mollusca (S. Smith R. Croll). Annelida--Polychaeta (P. Olive). Annelida--Oligochaeta and Hirudinea (R. Marcel). Arthropoda--Chelicerata (W. Kaufman). Arthropoda--Crustacea (F. Van Herp D. Soyez). Arthropoda--Insecta (T. Adams). Indexes.About the Editors Dr. K.G. Adiyodi, formerly Professor of Reproductive Physiology and Dean, Faculty of Science, Calicut University, Kerala, India and Vice-Chancellor, Cochin University of Science and Technology, Kochi, is now Public Service Commissioner to Government of India, New Delhi. A distinguished invertebrate reproductive biologist, who gave the discipline of invertebrate reproductive biology a global distinctiveness and identity of its own, Dr. K.G. Adiyodi is Founder Secretary of the International Society of Invertebrate Reproduction, Founder-Editor-in-Chief of the International Journal of Invertebrate Reproduction and Development, and Founder President of the Indian Society of Invertebrate Reproduction. Dr. Rita G. Adiyodi, formerly Rhodes Visiting Fellow, Somerville College, Oxford (1976-78), is Professor of Zoology at Calicut University. She served as President of the Crustacean Reprobiology and Aquaculture Bureau of India and as Vice-President of the IndianlS