#flatfish  any of several families of fishes having flattened bodies that swim along the sea floor on one side of the body with both eyes on the upper side
  supertype:  #spiny-finned_fish__acanthopterygian  a teleost fish with fins that are supported by sharp inflexible rays
  member of:  #order_Heterosomata
  subtype:  #flounder.flatfish  any of various European and non-European marine flatfish
  subtype:  #righteye_flounder__righteyed_flounder__righteyedflounder  flounders with both eyes on the right side of the head
     subtype:  #Pleuronectes_platessa__plaice  large European food fish
     subtype:  #European_flatfish__Platichthys_flesus  important food fish of Europe
     subtype:  #Limanda_ferruginea__yellowtail_flounder  American flounder having a yellowish tail
     subtype:  #blackback_flounder__blackbackflounder__winter_flounder__lemon_sole__lemonsole__Pseudopleuronectes_americanus  important American food fish in the winter
     subtype:  #Microstomus_kitt__lemon_sole__lemonsole  European flatfish highly valued as food
     subtype:  #American_plaice__Hippoglossoides_platessoides  large American food fish
     subtype:  #Atlantic_halibut__Hippoglossus_hippoglossus  largest United States flatfish
     subtype:  #Pacific_halibut__Hippoglossus_stenolepsis  a righteye flounder found in the Pacific
  subtype:  #holibut  marine food fish of North Atlantic or North Pacific; the largest flatfish and one of the largest teleost fishes
  subtype:  #lefteye_flounder__lefteyeflounder__lefteyed_flounder  flatfishes with both eyes on the left side of the head
     subtype:  #southern_flounder__Paralichthys_lethostigmus  flounder of southern United States
     subtype:  #summer_flounder__Paralichthys_dentatus  flounder of eastern coast of North America
     subtype:  #gray_flounder__Etropus_rimosus  flounder found from North Carolina to Florida and the eastern Gulf of Mexico
     subtype:  #whiff.lefteye_flounder  a lefteye flounder found in coastal waters from New England to Brazil
        subtype:  #horned_whiff__Citharichthys_cornutus  whiff found in waters from the Bahamas and northern Gulf of Mexico to Brazil
     subtype:  #sand_dab  small food fishes of the Pacific coast of North America
     subtype:  #Scophthalmus_aquosus__windowpane  very thin translucent flounder of the Atlantic coast of North America
     subtype:  #brill__scophthalmusrhombu  European food fish
     subtype:  #Psetta_maxima__turbot  a large brownish European flatfish
  subtype:  #tonguefish  left-eyed marine flatfish whose tail tapers to a point; of little commercial value
  subtype:  #sole.flatfish  right-eyed flatfish; many are valued as food; most common in warm seas especially European
     subtype:  #European_sole__Solea_solea  highly valued as food
     subtype:  #Solea_lascaris__lemon_sole__lemonsole  small European sole
     subtype:  #Parophrys_vitulus__English_sole__lemon_sole__lemonsole  popular pale brown food flatfish of the Pacific coast of North America
     subtype:  #sand_sole__Psettichthys_melanostichus  common flatfish of North American Pacific coast
     subtype:  #hogchoker__Trinectes_maculatus  useless as food; in coastal streams from Maine to Texas and Panama

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