Mound-building Mouse
Mus spicilegus
- Least concern
- Card rarity: Common
- Mammals

The steppe mouse or mound-building mouse is a species of rodent in the family Muridae. It is found in grassland and other open areas in Austria, Bosnia and Herzegovina, Albania, Bulgaria, Croatia, Greece, Hungary, Moldova, Romania, Russia, Serbia, Montenegro, North Macedonia, Slovakia, and Ukraine.
Classification
- Class
- Mammalia
- Order
- Rodentia
- Family
- Muridae
- Genus
- Mus