A little Google work turned up this brief snippet, though I can't guarentee its authenticity:
The 'two men' who came from the mountains in the Dreamtime. They are lizard-men and the iguana is their totem (and are therefore also called Men Iguana). They made many cult-objects (tjurunga) and gave them to the Aboriginals. On their travels they created trees, plants, physiographic features, and ceremonial objects. Ceremonies now depict events in these travels. A particular myth tells of when the man in the moon (Kidili) attempted to rape the first woman, Wati-kutjara threw a magical boomerang which severed the rapist's genitals. The woman disappeared in the heavens and formed the constellation of the Pleiades. They are known to the tribes of central-western Australia in the Great Western Desert.
http://www.pantheon.org/articles/w/wati-kutjara.html
The 'two men' who came from the mountains in the Dreamtime. They are lizard-men and the iguana is their totem (and are therefore also called Men Iguana). They made many cult-objects (tjurunga) and gave them to the Aboriginals. On their travels they created trees, plants, physiographic features, and ceremonial objects. Ceremonies now depict events in these travels. A particular myth tells of when the man in the moon (Kidili) attempted to rape the first woman, Wati-kutjara threw a magical boomerang which severed the rapist's genitals. The woman disappeared in the heavens and formed the constellation of the Pleiades. They are known to the tribes of central-western Australia in the Great Western Desert.
http://www.pantheon.org/articles/w/wati-kutjara.html