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
Somalia gerbil cushioned gerbil ("G. pulvinatus"), Harwood's gerbil ("Dipodillus harwoodi"), least gerbil "G. pusillus", Somalian gerbil "Dipodillus somalicus" and Waters's gerbil ("G. watersi"). The Somalia gerbil can be distinguished from the others by the hairy soles to its hind feet. The head-and-body length is about and the tail . The mass is about . The Somalia gerbil is native to the Horn of Africa. Its range includes Eritrea, Djibouti, eastern Ethiopia and northern Somalia. Its typical habitat is bare or scantily-vegetated, rocky plains, dry grassland and dry savannah. The Somalia gerbil is present in a large area of suitable habitat. No particular