Cricetulus sokolovi
Sokolov's Dwarf Hamster (Cricetulus sokolovi)
Featured photosokolovs-dwarf-hamster.jpgCricetulus sokolovi, Sokolov's dwarf hamster, is a small Cricetulus species described in 1988 from the southern Mongolian semi-desert. Adults are paler than the closely related C. barabensis, with a less distinct dorsal stripe and a buff-grey overall coat better matched to the sandy substrate of the range. The species was named after the Russian zoologist Vladimir Sokolov. The IUCN Red List assesses the species as Least Concern.
Quick facts
- Lifespan
- 1.5–2 years
Overview
Adults reach 8 to 11 cm in body length with a short tail. The dorsal coat is pale buff-grey with only a faint darker dorsal stripe, the field mark that most reliably separates Sokolov's from the more easterly C. barabensis. The underside is white.
Distribution
The wild range covers the southern Mongolian semi-desert, with disjunct records reaching the Inner Mongolian autonomous region of China. Habitat is sandy semi-desert and adjacent steppe with sparse Stipa and Artemisia vegetation, between 1000 and 1700 m elevation.
Behaviour
Crepuscular and partly nocturnal. The species nests in shallow burrows with multiple entrances, often constructed in sandy mounds at the base of shrubs. Population density tracks rainfall and seed production with a one-year lag.
Taxonomy
Cricetulus sokolovi was described by Orlov and Malygin in 1988 on the basis of cranial and karyotypic differences from C. barabensis. The two species are sister taxa and may have diverged during the Pleistocene aridification of central Asia.
Sources & further reading (2)
- iucn-red-list — accessed 2026-04-29
- encyclopedia — accessed 2026-04-29
Frequently asked questions
When was the species described?
Cricetulus sokolovi was described in 1988 by the Russian zoologists Vladimir Orlov and Leonid Malygin, based on type specimens from the southern Mongolian semi-desert. It is one of the most recently described Cricetinae.
How does Sokolov's compare to the striped dwarf?
Sokolov's dwarf carries a paler, more uniform coat with only a faint dorsal stripe, vs. the sharply defined stripe of C. barabensis. The two species have non-overlapping ranges, with sokolovi restricted to the southern Mongolian semi-desert.
Where does the name come from?
The species is named after Vladimir Sokolov, a Russian zoologist who directed the Severtsov Institute of Ecology and Evolution and led many of the central Asian small-mammal expeditions of the late twentieth century.
