The Collaborative International Dictionary of English v.0.48:

Garfish \Gar"fish`\, n. [See Gar, n.] (Zool.)
   (a) A European marine fish (Belone vulgaris); -- called
       also gar, gerrick, greenback, greenbone,
       gorebill, hornfish, longnose, mackerel guide,
       sea needle, and sea pike.
   (b) One of several species of similar fishes of the genus
       Tylosurus, of which one species (T. marinus) is
       common on the Atlantic coast. T. Caribb[ae]us, a very
       large species, and T. crassus, are more southern; --
       called also needlefish. Many of the common names of the
       European garfish are also applied to the American
       species.
       [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Sauger \Sau"ger\, n. (Zool.)
   An American fresh-water food fish (Stizostedion Canadense);
   -- called also gray pike, blue pike, hornfish, land
   pike, sand pike, pickering, and pickerel.
   [1913 Webster] Saugh

The Collaborative International Dictionary of English v.0.48:

Hornfish \Horn"fish`\, n. [AS. hornfisc.] (Zool.)
   The garfish or sea needle.
   [1913 Webster]