Mura is a language of Amazonas, Brazil. It is famous for Pirahã, its remaining dialect. Linguistically, it is typified by agglutinativity, a very small number of phonemes (11 compared to over 40 in English), whistled speech, and the use of tone. In the 19th century, there were an estimated 30,000–60,000 Mura. It is now spoken by only 300 Pirah