Plains Mouse
Pseudomys australis
- Vulnerable
- Card rarity: Rare
- Mammals

The plains rat, also known as the palyoora, plains mouse and eastern mouse, is a conilurine rodent native to arid and semi-arid Australia. Referred to as the pallyoora or yarlie by Indigenous groups, the plains rat was once widely distributed across central Australia, including north-west New South Wales and south-west Queensland; however, habitat degradation due to grazing, introduced predators and drought have contributed to its decline. Consequently, the plains rat has been listed as 'presumed extinct' in New South Wales and Victoria, 'endangered' in the Northern Territory and Queensland and 'vulnerable' in Western Australia and South Australia.
Classification
- Class
- Mammalia
- Order
- Rodentia
- Family
- Muridae
- Genus
- Pseudomys