The female equals the male in point of size, but has no mane, being uniformly covered with short hair of deep olive-brown slightly mixed with green. She has a bearish look, and it is evident that the colours of both sexes are admirably adapted to hide them when crawling amongst rocks, or hiding away in holes and under ledges of stone. All have a wild, grunting bark, almost approaching a roar; and they possess laryngeal pouches or air sacs, which pass amongst the muscles of the neck and reach even into the armpits. The pouch communicates by one opening into the membrane above the larynx, and between its cartilage and the so called hyoid bone at the base of the tongue, and they, therefore, resemble those of the Semnopitheci. Mansfield Parkyns gives some very interesting and explicit statements about the intelligence and discipline of the Baboons. He says--“The Monkeys, especially the Cynocephali, who are astonishingly clever fellows, have their chiefs, whom they obey implicitly, and a regular system of tactics in war, pillaging expeditions, robbing cornfields, &c. These Monkey forays are managed with the utmost regularity and precaution. A tribe coming down to feed from their village on the mountain (usually a cleft in the face of some cliff) brings with it all its members, male and female, old and young. Some--the elders of the tribe distinguishable by the quantity of mane which covers their shoulders, like a Lion’s--take the lead, peering cautiously over each precipice before they descend, and climbing to the top of every rock which may afford a better view of the road before them. Others have their posts as scouts on the flanks or rear, and all fulfil their duties with the utmost vigilance, calling out at times, apparently to keep order among the motley pack, which forms the main body, or to give notice of the approach of any real or imagined danger. Their tones of voice on these occasions are so distinctly raised, that a person much accustomed to watch their movements will at length fancy--and perhaps with some truth--that he can understand their signals.