Fish Osmoregulation in Special Environments: A.J.R. Pequeux; Alcolapia grahami: A Fish Inhabiting a Highly Alkaline Environment of Lake Magadi, Kenya: Daniel W. Onyango and S.M. Kisia; Cave Fishes: The Consequences of the Life in Darkness: Jakob Parzefall; Circadian Rhythms in Hypogean Fish: With Special Reference to the Cave Loach, Nemacheilus evezardi: A.K. Pati; Hemoglobinless Antarctic Icefish: Adaptations to Living at Sub-zero Temperatures: S.M. Kisia and Daniel W. Onyango; Fish Life in Special Environments: Mitochondrial Function in the Cold: Helga Guderley and Edouard Kraffe; Hypoxic Survival in Two Extremes: Ice Cold Lakes in Northern Europe and Tropical Coral Reefs: Goran Nilsson and Sara Ostlund-Nilsson; Endocrinology of Migratory Fish Life Cycle in Special Environments: The Role of Metamorphoses: Karine Rousseau and Sylvie Dufour; Fish Muscle Function and Pressure: Philippe Sebert; Alepocephaloids, a Key Teleostean Group: Their Myology, Functional Anatomy, Phylogeny and Specialization to Deep-water Environments: Rui Diogo; Diversity and Adaptation in Deep Channel Neotropical Electric Fishes: William G.R. Crampton.