This is the list of rodents of Australia. Australia has a large number of indigenous rodents, all from the family Muridae. The "Old endemics" group are member of tribe Hydromyini. They have reached Australasia between 11 - 9 million years ago from asia. And the "New endemics" group are member of tribe rattini. They are presumed to have arrived more recently between 4 - 3 million years from Asia. The black rat, brown rat, Pacific rat and house mouse were accidentally introduced to Australia with European settlement, as was a small population of the five-lined palm squirrel near Perth.