Boschung, Herbert T. Department of Biological Sciences, University of Alabama, Tuscaloosa, Alabama.
Last reviewed:January 2021
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A very large superorder of actinopterygian (ray-finned) fishes containing close to 30% of all known fishes of the world and accounting for about 70% of the freshwater species. Although the perciforms dominate modern seas, the members of the superorder Ostariophysi (ostariophysans) command preeminent faunal importance in freshwaters. At least one-half of the freshwater fishes of each continent, with the exception of Australia, belong to this group. See also: Actinopterygii; Osteichthyes; Perciformes
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