The rakali (Hydromys chrysogaster) is an Australian native rodent first described in 1804. Having adapted to and colonized a unique niche of a semiaquatic and nocturnal lifestyle, this rakali lives in burrows on the banks of rivers, lakes and...
The western water rat (Hydromys hussoni ) is a semiaquatic species of rodent in the family Muridae.It is found in West Papua, Indonesia and Papua New Guinea.It is threatened by habitat loss.
The New Britain water rat (Hydromys neobritannicus ) is a species of semiaquatic rodent in the family Muridae.It is found only on the island of New Britain in Papua New Guinea. It is threatened by habitat loss.
Ziegler's water rat (Hydromys ziegleri ), discovered in the mid-2000s, is a semiaquatic species of rodent native to the mountains Papua New Guinea of which little is known.
