Mongolian gerbil They are somewhat larger than mice, with a body about long (and a tail of similar length), with a body mass averaging in females and in males. The Mongolian gerbil is classified as a "prohibited new organism" under New Zealand's Hazardous Substances and New Organisms Act 1996, preventing it from being imported into the country. The species is also prohibited in the US state of California. "Meriones unguiculatus" evolved on the semideserts and steppes of Mongolia. There, they developed long legs for jumping and running from predators, teeth to deal with hard seeds and plant matter, and water conservation techniques
Balochistan gerbil Africa, the Arabian peninsula and western Asia. Its range includes the northwestern region of Africa to the north of the Sahara, from Morocco, Algeria and Tunisia, and the Sahel to the south of the desert, from Mauritania to Mali, Niger and Chad. A separate population is present in the Arabian Peninsula, the Middle East, Afghanistan, Pakistan and northwestern India. The typical habitat of this gerbil is desert and semi-desert where it mostly occupies better vegetated locations such as wadi's, oases and sand-clay basins and plains with relatively deep soils. Balochistan gerbil The Balochistan gerbil or dwarf gerbil ("Gerbillus nanus"), is