#eel  voracious snakelike marine or freshwater fishes with smooth slimy usually scaleless skin and having a continuous vertical fin but no ventral fins
  supertype:  soft-finned_fish__malacopterygian  any fish of the superorder Malacopterygii
  member of:  order_Anguilliformes
  subtype:  elver  young eel
  subtype:  common_eel__freshwater_eel  eels that live in fresh water as adults but return to sea to spawn; found in Europe and America; marketed both fresh and smoked
  subtype:  Anguilla_sucklandii__tuna  New Zealand eel
  subtype:  moray_eel__morayeel__moray  family of brightly colored voracious eels of warm coastal waters; generally nonaggressive to humans but larger species are dangerous if provoked
  subtype:  conger_eel__conger  large somber-colored scaleless marine eel found in temperate and tropical coastal waters; some used for food

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