#billfish  giant warm-water game fish having a prolonged and rounded toothless upper jaw
  supertype:  #scombroid_fish__scombroidfish__scombroid  important marine food and game fishes found in all tropical and temperate seas; some are at least partially endothermic and can thrive in colder waters
  member of:  #family_Istiophoridae
  subtype:  #marlin__spearfish  large long-jawed oceanic sport fishes; related to sailfishes and spearfishes; not completely cold-blooded i.e. able to warm their brains and eyes
     subtype:  #blue_marlin__Makaira_nigricans  largest marlin; may reach 2000 pounds; found worldwide in warm seas
     subtype:  #Makaira_mazara__black_marlin__blackmarlin  Pacific marlin
     subtype:  #black_marlin__blackmarlin__Makaira_marlina  Pacific marlin
     subtype:  #striped_marlin__stripedmarlin__Makaira_mitsukurii  Pacific food and game fish marked with dark blue vertical stripes
     subtype:  #white_marlin__whitemarlin__Makaira_albida  small marlin (to 180 pounds) of western Atlantic
  subtype:  #spearfish  any of several large vigorous pelagic fishes resembling sailfishes but with first dorsal fin much reduced; worldwide but rare

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