After Aquarium Atlas Volumes 1 and 2, no enhancement seemed possible. However, after laborious work we have again successfully collected over 1,000 color photographs of species not presented in the previous volumes of the Aquarium Atlas. This volume again emphasizes catfishes, killifishes and, naturally, the cichlids - the eternal favorites of most aquarists. But Russian species, hereto almost unknown in Western Europe, the United States, Canada, and the Far East, have been included to a larger degree than previously.