The Laotian rock rat or kha-nyou ( `` Laonastes aenigmamus '' ) , sometimes called the `` rat-squirrel '' , is a rodent species of the Khammouan region of Laos .
The Laotian rock rat or kha-nyou ( `` Laonastes aenigmamus '' ) is a rodent species of the Khammouan area of Laos , first named in 2005 .