Spermophilus undulatus (Pallas, 1778) . Nova Spec. Quad. Glir. Ord., p. 122.

TYPE LOCALITY: "Selenga River valley," [Buryat ASSR, Russia].

DISTRIBUTION: E Kazakhstan; S Siberia, Transbaikalia (Russia); N Mongolia; Heilungjiang and Xinjiang (China).

SYNONYMS: altaicus (Brandt, 1841); eversmanni (Brandt, 1841); intercedens (Ognev, 1937); jacutensis (Brandt, 1844); menzbieri (Ognev, 1937); stramineus (Obolenskii, 1927); transbaikalicus (Obolenskii, 1927).

COMMENTS: Subgenus Urocitellus according to Gromov et al. (1965:162), but see Hall (1981:381) who included Urocitellus in subgenus Spermophilus . Formerly included parryii (Hall and Kelson, 1959:343); but see Nadler et al. (1974) and comments under parryii . Chromosomes described by Nadler et al. (1975a).