Australian swamp rat

[3] Its ventral surface is cream to brown color and it has small ears nearly concealed by hair.

The diet is vegetarian;[6] consisting of reeds, seeds, and swamp grass stems.

[3] During the summer months, the species will increase its intake of insects as well as fungi; however, during spring months the rats switch to eating an increased amount of seeds due to their abundance and possible nutritional value in breeding season.

[8] The rats reach sexual maturity around August and start to breed come October.

[8] The species has a litter size ranging from one to eleven on average with a gestation period lasting around 23 to 25 days.

An illustration of the Australian swamp rat published in John Gould 's The Mammals of Australia