Source : Webster's Revised Unabridged Dictionary (1913)

Lamper eel \Lam"per eel`\ (Zo["o]l.)
   See {Lamprey}.

Source : WordNet®

lamper eel
     n : primitive eellike freshwater or anadromous cyclostome having
         round sucking mouth with a rasping tongue [syn: {lamprey},
          {lamprey eel}]