The one-toothed shew mouse (''Pseudohydromys ellermani'') is a species of

rodent Rodents (from Latin , 'to gnaw') are mammals of the Order (biology), order Rodentia ( ), which are characterized by a single pair of continuously growing incisors in each of the upper and Mandible, lower jaws. About 40% of all mammal specie ...

in the family

Muridae The Muridae, or murids, are either the largest or second-largest family of rodents and of mammals, containing approximately 870 species, including many species of mice, rats, and gerbils found naturally throughout Eurasia, Africa, and Australia. ...

. It is found in West Papua,

Indonesia Indonesia, officially the Republic of Indonesia, is a country in Southeast Asia and Oceania, between the Indian Ocean, Indian and Pacific Ocean, Pacific oceans. Comprising over List of islands of Indonesia, 17,000 islands, including Sumatra, ...

and

Papua New Guinea Papua New Guinea, officially the Independent State of Papua New Guinea, is an island country in Oceania that comprises the eastern half of the island of New Guinea and offshore islands in Melanesia, a region of the southwestern Pacific Ocean n ...

, at elevations from 1,200 to 3,000 m. It is most closely related to ''

Pseudohydromys germani ''Pseudohydromys'' is a genus of rodents in the family Muridae endemic to New Guinea. It contains the following species: * Bishop's moss mouse (''Pseudohydromys berniceae'') * Huon small-toothed moss mouse (''Pseudohydromys carlae'') * Laurie' ...

''.

References

Pseudohydromys Rodents of Papua New Guinea Mammals of Western New Guinea Mammals described in 1954 Taxa named by John Edwards Hill Taxonomy articles created by Polbot Taxa named by Eleanor Mary Ord Laurie Rodents of New Guinea {{Murinae-stub