
1) Mythic aquatic creature
Found on
https://www.crosswordclues.com/clue/coi-coi-vilu

Coi Coi-Vilu or Caicai-Vilu (from Mapudungun Kaykayfilu: Kaykay a name, and filu `snake`) is the god of water (or goddess, in some versions found in Chiloé) and of all that inhabits it and is who rules the seas; according to Mapuche myths (later also found in Chiloé). This snake was a central figure in the Origin Of The Chiloean Archipelago. I.....
Found on
http://en.wikipedia.org/wiki/Coi_Coi-Vilu
No exact match found.