Spermophilus pallidicauda (Satunin, 1903)

Augugliaro, Claudio, Worsøe Havmøller, Rasmus, Monti, Ibra E., Worsøe Havmøller, Linnea, Janchivlamdan, Choikhand & Badamjav, Lkhagvasuren, 2020, Non-volant mammal inventory of western Mongolian-Manchurian Grassland Ecoregion: a biogeographic crossroad worth preserving, Check List 16 (2), pp. 287-301 : 297-298

Spermophilus pallidicauda (Satunin, 1903)

New record. MONGOLIA • Province of Tov; 46°54.55′N, 105°42.39′E; 7 Aug.2017; opportunistic observation .

Identification. Characteristic stocky body and short tail (tail <55 mm; Smith et al. 2010). It has reddish spots beneath the eyes with a yellow chin and hairless hind feet ( Batsaikhan et al. 2014; Smith et al. 2010).

Rodentia (Scuridae)

Urocitellus undulatus (Pallas, 1778)

Figure 6D

New record. MONGOLIA • Province of Tov; 46°55.08′N, 105°51.99′E; 15 May 2017; opportunistic observation .

Identification. Identified by morphological character- istics. It can be distinguished from Spermophilus pallidicauda by its considerably longer and larger tail (tail length: 3.5–5.3 cm for S. pallidicauda ; tail length: 10–14 cm for U. undulatus ) ( Batsaikhan et al. 2014; Smith et al. 2010).

Largomorpha ( Leporidae )

Lepus tolai (Pallas, 1778)

Figure 6E

New record. MONGOLIA • Province of Tov; 43°15.19′N, 106°7.03′E; 12 May 2017; opportunistic observation .

Identification. During the summer the fur color of L. tolai is lighter than Lepus timidus (Linnaeus,1758) , the only other Leporidae occurring in Mongolia. Tail color is typically all white with black tips and a golden edge ( Batsaikhan et al. 2014). The only species of Leporidae recorded from the study area.

Largomorpha ( Ochotonidae )

Ochotona dauurica (Pallas, 1776)

Figure 6F

New record. MONGOLIA • Province of Tov; 46°55.08′N, 105°51.99′E; 13 May 2017; opportunistic observation .

Identification. Two species of pikas occur, Ochotona pallasii (Gray, 1867) and O. dauurica in the Province of Tov, the largest part of our study area. The dorsal fur

in O.dauurica is brown and in O. pallasi ocherous gray, ventral side is white in O. dauurica and sandy in O. pallasi ( Lissovsky 2016) .