WordNet sense 1 (primitive predaceous North American fish covered with hard scales and having long jaws with needlelike teeth):

gar, garfish, garpike, Lepisosteus osseus

WordNet sense 2 (slender long-beaked fish of temperate Atlantic waters):

saury, Scomberesox saurus

WordNet sense 3 (elongate European surface-dwelling predacious fishes with long toothed jaws; abundant in coastal waters):

needlefish