The ahuizotl (from the Classical Nahuatl: āhuitzotl for "spiny aquatic thing", a.k.a. "water dog") is a legendary creature in Aztec mythology. It is said to lure people to their deaths. The creature was taken as a mascot by the ruler of the same name, and was said to be a "friend of the rain gods".The conquistador Hernán Cortés once reported to the King of Castile that one of his men had been killed by an ahuizotl.
In Norse mythology, Garmr or Garm (Old Norse "rag") is a wolf or dog associated with both Hel and Ragnarök, and described as a blood-stained guardian of Hel's gate.
