], member of the Salmonidae, a family of marine fish that spawn in freshwater, including the salmons, the trouts, and the chars. Many authorities have placed the whitefish and the grayling
among the Salmonidae, so similar are they in structure and habits. The Salmonidae are the most highly developed of the herringlike fishes, characterized by soft, rayless adipose fins, and are denizens of cold, oxygen-rich waters. In general they are silvery in the sea and more brightly hued in brooks and lakes.
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