Cleisthenes herzensteini is a flatfish of the family Pleuronectidae. It is a demersal fish that lives on bottoms in the temperate waters of the northwest Pacific, from the Sea of Okhotsk to the Sea of Japan, Yellow Sea, Gulf of Bohai and the East China Sea. It can grow up to 47 centimetres (19 in) in length, though its length is typically around 31 centimetres (12 in). Its maximum recorded weight is 1.215 kilograms (2.68 lb), and it can live for up to 15 years.