It was initially thought that the extra eye was the result of two separate heads being forged together.
However, this theory was later ruled out after x-rays revealed the snake had been born with an additional eye socket.
"It was generally agreed that the eye likely developed very early during the embryonic stage of development," the Northern Territory Parks and Wildlife said.
"It is extremely unlikely that this is from environmental factors and is almost certainly a natural occurrence as malformed reptiles are relatively common."