Billfish n. (Zool.) A name applied to several distinct fishes: (a)The garfish (Tylosurus longirostris, or Belone longirostris) and allied species.
(b)The saury, a slender fish of the Atlantic coast (Scomberesox saurus).
(c)The Tetrapturus albidus, a large oceanic species related to the swordfish; the spearfish.
(d)The American fresh-water garpike (Lepidosteus osseus).