the Tatar name of the great wild sheep, Ovis ammon, of the Altai and other parts of Siberia. Standing as high as a large donkey, the argali is the finest of all the wild sheep, the horns of the rams, although of inferior length, being more massive than those of Ovis poli of the Pamirs. There are several local races of argali, among which O. ammon hodgsoni of Ladak and Tibet is one of the best known. There are likewise several nearly related central Asian species, such as O. sairensis and O. littledalei. (See SHEEP.)