Also known as plaice, it lives on the sandy bottom of shallow sea and preys on small fish and shrimp. They are especially suitable for benthic organisms on the sea floor. Because their bodies are flat. Both eyes are on the upward side of the body, and the color of this side matches well with the surrounding environment; Their downward side is white. Flatfish has extremely fine scales on its body surface. The flounder has only one dorsal fin, extending almost from the head to the caudal fin. They mainly live in temperate waters and are important economic fish in temperate waters.

The flounder is a strange fish with two eyes on one side. It is a large class of marine fish, and it is called A fish in the north. Guangdong calls its fresh product "left-mouthed fish", its dried product "native fish", and some people call it "sole fish" because it looks like sole. Flatfish was also called king fish in ancient times. Including catfish, Sole Sole and Sole Sole Sole. The common flounder families are Scophthalmus maximus and PARALICHTHYS olivaceus. Common halibut families are "high-eyed halibut (drum-eyed halibut)", "stone sole (stone clip)" and "wood leaf halibut"; The common species of the sole family is "tongue sole (tongue fish)".