Ridged-eye flounder
The ridged-eye flounder, also known as the frog flounder, is a species of flatfish in the family Pleuronectidae. It is a demersal fish that lives on sand and mud coastal bottoms at depths of between. Its native habitat is the temperate waters of the north-western Pacific, from southern Hokkaido to the Korean peninsula, the Bohai Sea, the Yellow Sea and the South China Sea. It can grow up to in length, and can weigh up to.