Any of various small, mouselike rodents of the genus Gerbillus and related genera of arid regions of Africa and Asia Minor, having long hind legs and a long tail.

• 沙鼠一种沙鼠属及非洲和小亚细亚干旱地区的相关种类的似鼠的小啮齿动物，有长的后腿及尾部