Front Cover; Advances in Parasitology, Volume 19; Copyright Page; Contents; Contributors to Volume 19; Preface; Chapter 1. Copepoda (Crustacea) Parasitic on Fishes: Problems and Perspectives; I. Introduction; II. Morphology and Anatomy; III. Classification and Phylogeny; IV. Some Interesting New Forms; V. Life Cycles; VI. Host-parasite Relationships; VII. Interspecific Relationships of Parasitic Copepods; VIII. Biology; References; Chapter 2. Aspects of Acanthocephalan Reproduction; I. Introduction; II. Sexual Dimorphism; III. Sex Determination and Sex Ratio.

IV. Development and Functional Morphology of the Reproductive SystemV. Gametogenesis; VI. Mating; VII. Fertilization; VIII. Development of the Egg (Shelled Acanthor); IX. Egg Release and Patency; X. Suggestions for Further Work; Acknowledgements; References; Chapter 3. Caryophyllidea (Cestoidea): Evolution and Classsfication; I. Introduction; II. Perspective; III. Characteristics and Possible Evolutionary Significance; IV. Archigetes Evolution; V. Evolutionary Schemes (1971-1979); VI. Discussion; VII. Conclusions; Acknowledgements; References; Subject Index.