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
Boehm's gerbil the lower side white, apart from the terminal portion which is white all round, often with a small tuft of white hairs at the tip. Boehm's gerbil lives in a burrow with one or two entrances which it either digs itself or uses a pre-existing burrow of another gerbil species or a mole-rat. It is omnivorous, emerging at night to forage for vegetable material and insects, possibly over a large area. Breeding takes place at different times of year in different parts of its range, often coinciding with the rainy season. Boehm's gerbil Boehm's gerbil ("Gerbilliscus boehmi") is a species