Spearfish \Spear"fish`\, n. (Zo["o]l.)
   (a) A large and powerful fish (Tetrapturus albidus) related to the swordfish, but having scales and ventral fins. It is found on the American coast and the Mediterranean.
   (b) The carp sucker.

Source: Webster's Revised Unabridged Dictionary (1913)
 

Quillback \Quill"back`\, n. (Zo["o]l.) An American fresh-water fish (Ictiobus, or Carpiodes, cyprinus); -- called also carp sucker, sailfish, spearfish, and skimback.

Source: Webster's Revised Unabridged Dictionary (1913)