An important Japanese food-fish, the Hirame, also known as the olive flounder, bastard halibut or Japanese halibut is a temperate marine species of large-tooth flounder native to the north-western Pacific Ocean. It is often referred to as the Japanese flatfish or Korea(n) flatfish (광어) when mentioned in the context of those countries. It can reach a length of 41 inches and a weight of 20 lbs. It is the most common flatfish species raised in aquaculture in Korea. They are raised in Japan and China as well. It is the most highly prized of the Japanese flounders.