Caspian trout
The Caspian trout is a disputed species of fish in the family Salmonidae. It is native to Eurasia, where it occurs only in the southern Caspian Sea basin. It reaches 25 cm in standard length. While historically considered a distinct species, recent evidence suggests that the Caspian trout, as well as the Black Sea salmon and the Abant trout are not distinct species but are instead morphs of the brown trout.