Sicista severtzovi Ognev 1935

The Severtzov's birch mouse, or dark birch mouse (Sicista severtzovi) is a species of rodent in the family Sminthidae. It is endemic to East-European steppes (E Ukraine and S-W Russia).

References

• Holden, M.E.; Musser, G.G. (2005). "Family Dipodidae". In Wilson, D.E.; Reeder, D.M. (eds.). Mammal Species of the World: A Taxonomic and Geographic Reference (3rd ed.). Johns Hopkins University Press. pp. 871–893. ISBN 978-0-8018-8221-0. OCLC 62265494.