In the Australian Aboriginal mythology of Arnhem Land, Julunggul is a rainbow snake goddess, who oversaw the maturing and initiation of boys into manhood. She was a fertility goddess, associated with rebirth and the weather.
She is also known as Kalseru-Dupa.
Another name for this deity, Yurlunggur, is also the name of an extinct genus of madtsoiid snakes (Yurlunngur), specifically named after the Aboriginal myth.
References
Julunggul Wikipedia(Text) CC BY-SA