Chapter 1. An Introduction to the Dytiscidae: Their Diversity, Historical Importance, Cultural Significance, and Other Musings -- Chapter 2. Larval Chaetotaxy of World Dytiscidae (Coleoptera: Adephaga) and Implications for the Study of Hydradephaga -- Chapter 3. The Phylogeny and Classification of Predaceous Diving Beetles (Coleoptera: Dytiscidae) -- Chapter 4. Predaceous Diving Beetle Sexual Systems -- Chapter 5. Morphology, Anatomy, and Physiological Aspects of Dytiscids -- Chapter 6. Chemical Ecology and Biochemistry of Dytiscidae -- Chapter 7. Community Patterns in Dytiscids -- Chapter 8. Predator-Prey Ecology of Dytiscids -- Chapter 9. The Unique Australian Subterranean Dytiscidae: Diversity, Biology, and Evolution -- Chapter 10. Habitats Supporting Dytiscid Life -- Chapter 11. Dispersal in Dytiscidae -- Chapter 12. The Conservation of Predaceous Diving Beetles: Knowns, Unknowns and Anecdotes.