
1) Guaraní legendary creature 2) Mythological dog
Found on
https://www.crosswordclues.com/clue/teju-jagua

Teju Jagua is the first son of Tau and Kerana and one of the seven legendary monsters of Guaraní mythology. Because of the curse placed upon Tau by Arasy for raping Kerana, Tau`s descendents were forever cursed to a derformed and monstrous appearance. Thus, the pair`s first son was a huge lizard with seven dog-heads and eyes that shoot out fire.....
Found on
http://en.wikipedia.org/wiki/Teju_Jagua

In Guarani mythology, Teju-Jagua was a great lizard with seven dog heads. He was master of the caves and protector of the fruits.
Found on
http://www.probertencyclopaedia.com/browse/DCT.HTM
No exact match found.