Horsefish \Horse"fish`\, n. (Zool.)
      (a) The moonfish ({Selene setipinnis}).
      (b) The sauger.
          
[1913 Webster]

Moonfish \Moon"fish`\, n. (Zool.)
   (a) An American marine fish ({Vomer setipennis}); -- called
       also {bluntnosed shiner}, {horsefish}, and {sunfish}.
   (b) A broad, thin, silvery marine fish ({Selene vomer}); --
       called also {lookdown}, and {silver moonfish}.
   (c) The mola. See {Sunfish}, 1.
       
[1913 Webster]