Gobi jerboa by the Central Asiatic Expeditions and housed at the American Museum of Natural History (Allen 1925). Allen further compared the subspecies "Allactaga sibirica annulata" and "Allactaga sibirica sibirica", to the Gobi jerboa because they are all sympatric. Allen examined forty specimens collected from different regions of Mongolia, and found that while the Gobi jerboa was similar in color and appearance to "A. sibirica annulata", by exhibiting the same grayer and buffier phases, the Gobi jerboa has shorter and broader ears, smaller hind feet, and a much larger globular audital bullae (nearly three times the size), which differentiates it from "A.
Taklamakan Desert to regard the Taklamakan Desert as separate and independent from the Gobi Desert region to its east. The People's Republic of China has constructed two cross-desert highways. The Tarim Desert Highway links the cities of Hotan (on the southern edge) and Luntai (on the northern edge), and the Bayingol to Ruoqiang road crosses the desert to the east. In recent years, the desert has expanded in some areas, its sands enveloping farms and villages as a result of desertification. The Golmud-Korla Railway (presently, under construction; expected completion time, 2019) will cross the Taklamakan as well. Because it lies in the