n.in former classifications a major division of Mammalia comprising all hoofed mammals; now divided into the orders Perissodactyla (odd-toed ungulates) and Artiodactyla (even-toed ungulates)
So far8speciesandsubspecies (incluing 4 new species and subspecies) offleas, belong to 3genera of tbe family Vermipsyllidae parasites of ungulata, bavebeenfound in Qingkaiprovince.