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
Cheesman's gerbil Cheesman's gerbil Cheesman's gerbil ("Gerbilus cheesmani") is a small rodent in the subfamily Gerbillinae of the family Muridae. It is distributed mainly in Arabian Peninsula to southwestern Iran. It has orange-brown fur, white underparts, large eyes and a very long tail. Cheesman's gerbil was first described by the British zoologist Oldfield Thomas in 1919. It was named in honour of its discoverer, the British military officer, explorer and ornithologist Robert Ernest Cheesman who collected it while on an exploratory expedition in Saudi Arabia. This gerbil is similar in appearance to the lesser Egyptian gerbil ("Gerbillus gerbillus") and Anderson's gerbil ("Gerbillus