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
Western Flat, South Australia Western Flat, South Australia Western Flat is a locality in the Australian state of South Australia located in the state's south-east within the Limestone Coast region about south east of the state capital of Adelaide and about south of the municipal seat of Bordertown. Boundaries for the locality were created on 16 March 2000 for the “long established name.” Its name is ultimately derived from the ‘Western Flat Run’ pastoral lease which was established in 1868 by T. Brown. The land use in the locality is ‘primary production’. The 2016 Australian census which was conducted in August 2016 reports that