Mackerel guide

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]
    

Mackerel \Mack`er*el\, n. [OF. maquerel, F. maquereau (LL.
   macarellus), prob. for maclereau, fr. L. macula a spot, in
   allusion to the markings on the fish. See {Mail} armor.]
   (Zool.)
   Any species of the genus {Scomber} of the family
   {Scombridae}, and of several related genera. They are finely
   formed and very active oceanic fishes. Most of them are
   highly prized for food.
   [1913 Webster]

   Note: The common mackerel ({Scomber scombrus}), which
         inhabits both sides of the North Atlantic, is one of
         the most important food fishes. It is mottled with
         green and blue. The Spanish mackerel ({Scomberomorus
         maculatus}), of the American coast, is covered with
         bright yellow circular spots.
         [1913 Webster]

   {Bull mackerel}, {Chub mackerel}. (Zool.) See under {Chub}.
      

   {Frigate mackerel}. See under {Frigate}.

   {Horse mackerel} . See under {Horse}.

   {Mackerel bird} (Zool.), the wryneck; -- so called because it
      arrives in England at the time when mackerel are in
      season.

   {Mackerel cock} (Zool.), the Manx shearwater; -- so called
      because it precedes the appearance of the mackerel on the
      east coast of Ireland.

   {Mackerel guide}. (Zool.) See {Garfish}
   (a) .

   {Mackerel gull} (Zool.) any one of several species of gull
      which feed upon or follow mackerel, as the kittiwake.

   {Mackerel midge} (Zool.), a very small oceanic gadoid fish of
      the North Atlantic. It is about an inch and a half long
      and has four barbels on the upper jaw. It is now
      considered the young of the genus {Onos}, or {Motella}.

   {Mackerel plow}, an instrument for creasing the sides of lean
      mackerel to improve their appearance. --Knight.

   {Mackerel shark} (Zool.), the porbeagle.

   {Mackerel sky}, or {Mackerel-back sky}, a sky flecked with
      small white clouds; a cirro-cumulus. See {Cloud}.
      [1913 Webster]

            Mackerel sky and mare's-tails
            Make tall ships carry low sails.      --Old Rhyme.
      [1913 Webster] mackerel scad