Sailfish

  • dark blue along the upper half of the body
  • fading to brownish-blue on the lower sides to silver white on the belly
  • first dorsal fin is high, sail-like and blue-black, and covered in many small black spots
  • retains high dorsal fin throughout life
  • other fins are silver blue
  • on sides there are 15 to 20 vertical bars consisting of several small spots