Flatfish Flatfish A flatfish is a member of the order Pleuronectiformes of ray-finned demersal fishes, also called the Heterosomata, sometimes classified as a suborder of Perciformes. In many species, both eyes lie on one side of the head, one or the other migrating through or around the head during development. Some species face their left sides upward, some face their right sides upward, and others face either side upward. Many important food fish are in this order, including the flounders, soles, turbot, plaice, and halibut. Some flatfish can camouflage themselves on the ocean floor. Over 700 species are in the 11
Remo flounder Remo flounder The Remo flounder, "Oncopterus darwinii", is an edible flatfish of the family Pleuronectidae. It is a demersal fish that lives on bottoms at depths of between . Its native habitat is the southwestern Atlantic along the southeast coast of South America, from Santa Catarina, Brazil in the north to the San Matías Gulf, Argentina in the south. It can reach in length. The Remo flounder is a righteyed flounder and so has both its eyes on the right-hand side of its body. Its upper surface is pale brown in colour with small white spots, and large white spots