Hydromys

Hydromys is a genus of semiaquatic rodents in the subfamily Murinae. Three species are endemic to New Guinea and nearby islands. The fourth species, the rakali, is also found on Australia. The most recently discovered member of this genus was described in 2005.

Hydromys Temporal range: Middle Pliocene - Recent
Rakali (Hydromys chrysogaster)
Scientific classification
Kingdom:	Animalia
Phylum:	Chordata
Class:	Mammalia
Order:	Rodentia
Family:	Muridae
Tribe:	Hydromyini
Genus:	Hydromys É. Geoffroy, 1804
Type species
Hydromys chrysogaster É. Geoffroy, 1804
Species
Hydromys chrysogaster Hydromys hussoni Hydromys neobritannicus Hydromys ziegleri
red=Hydromys chrysogaster green=Xeromys sp. and Hydromys chrysogaster blue= Hydromys spp.

List of species

Genus Hydromys - water rats:

• Rakali, Hydromys chrysogaster E. Geoffroy, 1804^[1]
• Western water rat, Hydromys hussoni Musser and Piik, 1982^[1][2]
• New Britain water rat, Hydromys neobritannicus Tate and Archbold, 1935^[1]
• Ziegler's water rat, Hydromys ziegleri Helgen, 2005^[2]

Note: Hydromys habbema Tate and Archbold, 1941 and Hydromys shawmayeri (Hinton, 1943) are placed within Baiyankamys after Helgen, 2005.^[1][2]