#genus_Carcharhinus__Carcharhinus  type genus of the Carcharhinidae
  supertype:  #fish_genus  any of various genus of fish
  member of:  #family_Carcharhinidae
  member:  #bull_shark__cub_shark__cubshark__Carcharhinus_leucas  a most common shark in temperate and tropical coastal waters worldwide; heavy-bodied and dangerous
  member:  #sandbar_shark__sandbarshark__Carcharhinus_plumbeus  most common gray shark along coasts of middle Atlantic states; sluggish and occasionally caught by fishermen
  member:  #blacktip_shark__sandbar_shark__sandbarshark__Carcharhinus_limbatus  widely distributed shallow-water shark with fins seemingly dipped in ink
  member:  #oceanic_whitetip_shark__whitetip_shark__white-tipped_shark__Carcharinus_longimanus  large deep-water shark with white-tipped dorsal fin; worldwide distribution; most dangerous shark
  member:  #dusky_shark__duskyshark__Carcharhinus_obscurus  relatively slender blue-gray shark; nearly worldwide in tropical and temperate waters

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