A species to fresh-water fish of the Cyprinidæ or Carp family. The common European species is Leuciscus cephalus; the cheven. In America the name is applied to various fishes of the same family, of the genera Semotilus, Squalius, Ceratichthys, etc., and locally to several very different fishes, as the tautog, black bass, etc.
- Any of various freshwater fishes of the family Cyprinidae related to the carps and minnows, especially a Eurasian species, Leuciscus cephalus.
- Any of various North American fishes, such as a freshwater whitefish of the genus Coregonus or a marine fish of the genus Kyphosus.