Advances in Comparative and Environmental Physiology helps biologists, physiologists, and biochemists keep track of the extensive literature in the field. Providing comprehensive, integrated reviews and sound, critical, and provocative summaries, this series is a must for all active researchers in environmental and comparative physiology.

1 Cellular Mechanisms of Salivary Gland Secretion.- 1 Introduction.- 2 Secretory Endpieces.- 3 Salivary Ducts.- References.- 2 Mechanism of Nematocyst Discharge and Its Cellular Control.- 1 Introduction.- 2 Hypotheses Regarding the Mechanism of Nematocyst Discharge.- 3 Role of Calcium in Nematocyst Discharge.- 4 Mechanics of Nematocyst Discharge.- 5 Biochemical Nature of the Capsule and Intracapsular Fluid.- 6 The Donnan Equilibrium and Ionic Mechanism of Nematocyst Discharge.- 7 Cellular Control of Nematocyst Discharge.- 8 Conclusions.- References.- 3 Physiological Adaptations in Decapodan Crustaceans for Life in Fresh Water.- 1 Introduction.- 2 Biogeography and Evolution of Freshwater Decapods.- 3 Physicochemical Challenges of Living in Fresh Water.- 4 Osmoregulation and Ionoregulation.- 5 Acid-Base Balance.- 6 Molting Physiology.- 7 Gas Exchange: Ventilation and Circulation.- 8 Aerial Exposure.- 9 Freshwater Challenges Attributable to Man.- References.- 4 Neurochemical Differences in Two Steroid-Sensitive Areas Mediating Reproductive Behaviors.- 1 Introduction.- 2 The Biochemistry of Testosterone Action in the Quail Brain.- 3 Steroid-Neurotransmitter Interactions in the POM and ICo.- 4 Discussion.- References.