Pleuronectidae and they sink to the bottom. They are found on the bottoms of oceans around the world, with some species, such as the Atlantic halibut, "Hippoglossus hippoglossus", being found down to . The smaller species eat sea-floor invertebrates such as polychaetes and crustaceans, but the larger righteye flounders, such as "H. hippoglossus", which grows up to in length, feed on other fishes and cephalopods, as well. They include many important commercially fished species, including not only the various fish called flounders, but also the European plaice, the halibuts, the lemon sole, the common dab, the Pacific Dover sole, and the
Permit (fish) Permit (fish) The permit ("Trachinotus falcatus") is a game fish of the western Atlantic Ocean belonging to the family Carangidae. Adults feed on crabs, shrimp, and smaller fish. The permit was first described by the "father of taxonomy", Carl Linnaeus in his tenth edition of the work "Systema Naturae", which was published in 1758. He originally classified it as "Labrus falcatus", though the fish has since been placed in the genus "Trachinotus". The permit's genus name, "Trachinotus" comes from a fusion of the Greek words ' (), which means "rough", and ' (), meaning "back". The species name for the