noun (n)

• marine eellike mostly bottom-dwelling fishes of northern seas(noun.animal)

  Synonym:
  pout
  

  source: wordnet30
• elongate freshwater cod of northern Europe and Asia and North America having barbels around its mouth(noun.animal)

  Synonym:
  burbot, cusk, ling, lota lota
  

  source: wordnet30
• A European fish (Zoarces viviparus), remarkable for producing living young; -- called also greenbone, guffer, bard, and Maroona eel. Also, an American species (Z. anguillaris), -- called also mutton fish, and, erroneously, congo eel, ling, and lamper eel. Both are edible, but of little value.(noun)

  source: webster1913