Cricetulus longicaudatus (Milne-Edwards, 1867)

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 : 295-297

Cricetulus longicaudatus (Milne-Edwards, 1867) Figure 4H

New record. MONGOLIA • 1 ♂, 128 mm; Province of Tov; 46°57.11′N, 105°50.00′E; 15 Jul. 2017; caught in live trap .

Identification. Identified by morphological character- istics. Ventral fur white-grey and dorsal pelage grey to light brown without dorsal stripe. Long tail compared to other hamsters occurring in the area ( Pardiñas et al. 2017).

Rodentia (Cricetidae)

Lasiopodomys brandtii (Radde, 1861)

Figure 5A

New record. MONGOLIA • Province of Dundgovi; 46°57.66′N, 106°12.07′E; 7 Aug. 2017; opportunistic observation .

Identification. Identified by morphological characteris- tics. Fur on head and upper body sandy gray, underside white-gray. Tail fur uniformly yellowish. Sole of foot has six plantar pads, approximately three are covered by hair ( Lissovsky 2016).

Rodentia (Cricetidae)

Microtus limnophilus (Büchner, 1889)

Figure 5B

New record. MONGOLIA • 1 ♂, 98mm; Province of Dundgovi; 46°58.07′N, 106°12.44′E; 15 May 2017; caught in live trap .

Identification. Identified by morphological character- istics. Various color morphs are reported. Upper body often gray-brown with a rusty back. Short ears, blunt head, and small eyes. Six plantar pads on hint foot ( Lissovsky 2016).

Rodentia (Cricetidae)

Phodopus campbelli (Thomas, 1905)

Figure 5C

New record. MONGOLIA • 1 ♂, 76 mm; Province of Tov; 46°58.51′N, 105°55.32′E; 13 May 2017; caught in live trap .

Identification. Identified by morphological characteris- tics. Dorsal fur gray to wood-brown, underside white. Has a narrow black dorsal stripe, starting on the head going to the base of the tail. Tail and legs are cream and lighter than the body ( Pardiñas et al. 2017).

Rodentia (Cricetidae)

Phodopus roborovskii (Satunin, 1903)

Figure 5D

New record. MONGOLIA • 1 ♀, 40 mm; Province of Tov; 47°1.83′N, 105°57.36′E; 19 Jul. 2017; caught in live trap .

Identification. Identified by morphological characteris- tics. Dorsal fur light brown to yellow; underside white. No black stripe on back, P. roborovskii is smaller than Phodopus campbelli (Thomas, 1905) ( Pardiñas et al. 2017) .

Rodentia (Dipodidae)

Allactaga sibirica (Forster, 1778)

Figure 5E

New record. MONGOLIA • 1 ♂, 322 mm; Province of Tov; 46°58.51′N, 105°55.32′E; 17 Jul. 2017; caught in live trap .

Identification. Identified by morphological characteris- tics. Very long legs and characteristic well-furred white tail tip with a distinctive black mid band, head and dorsal side lightly grey, white flanks and underside. Easily rec- ognized by its long broad ears, and five toes on hind foot ( Michaux and Shenbrot 2017).

Rodentia (Dipodidae)

Dipus sagitta (Pallas, 1773)

Figure 5F

New record. MONGOLIA • 1 ♂, 239 mm; Province of Dundgovi; 46°57.67′N, 106°12.90′E; 8 Aug. 2017; caught in live trap .

Identification. Identified by morphological characteris- tics. Dipus sagitta and Allactaga sibirica (Forster,1778) are the only jerboa species in the study area. The species has a longer tail and shorter ears compared with the A. sibirica ( Batsaikhan et al. 2014) . Dipus sagitta only has three toes on hind foot.

Rodentia (Muridae)

Apodemus peninsulae (Thomas, 1906)

Figure 5G

New record. MONGOLIA • Province of Tov; 47°2.13′N, 105°57.56′E; 14 May 2017; opportunistic observation .

Identification. Identified by morphological character- istics. The only Apodemus species in the study area. A medium-sized rodent with brown-red pelage, darker back, and long tail. Presence of small granules between the plantar pads on feet is a distinguishing character of the species ( Pardiñas et al. 2017).

Rodentia (Muridae)

Meriones meridianus (Pallas, 1773)

Figure 5H

New record. MONGOLIA • 1 ♀, 127 mm; Province of Tov; 46°57.66′N, 106°12.06′E; 15 Jul. 2017; caught in live trap .

Identification. Identified by morphological characteris- tics. Tail is longer than the head and body. Differs from Meriones unguiculatus in having a less-developed tuft of the tail that are occasionally absent. The dorsal part of the tail is yellowish brown and its ventral part is light yellow. Underbelly is white. Soles on hind feet are covered with hairs. Claws are white with a reddish upper part ( Darvish 2009; Smith et al. 2010).

Rodentia (Muridae)