A cewar ƙamus, Black Marlin wani babban kifin namun daji ne da ake samu a cikin wurare masu zafi da na wurare masu zafi na Tekun Atlantika da Pacific. Yana da dogo, kunkuntar jiki mai duhu shudi zuwa baki a rabi na sama da fari-fari a rabin rabin. Yana da daraja sosai daga masunta na wasanni saboda girmansa, saurinsa, da tsalle-tsalle na acrobatic lokacin da aka kama shi. Sunan kimiyya na Black Marlin shine Istiompax indica.