The bamboo rats are four species of rodents of the subfamily Rhizomyinae. They are the sole living representatives of the tribe Rhizomyini. All are found in the eastern half of Asia.The species are:The Chinese bamboo rat, Rhizomys sinensis, found in central and southern China, northern Burma, and Vietnam; The hoary bamboo rat, R. pruinosus, found from Assam in India to southeastern China and the Malay Peninsula; The Sumatra or large bamboo rat, R.