The Monkeys belonging to the group known as Macaques, or Macacus, nearly all have tails; some quite long, others short, and still others of medium length, and Naturalists sometimes divide them into different groups according to the length of the tail. Others classify in different ways, making a great many distinct groups or Genus of this particular tribe of Monkeys, but the three main groups—the Wanderoo, the Barbary Ape and the Bonnet Monkey—are the most important and include the main characteristics of all the others. THE WANDEROO. The Wanderoo is commonly found in the island of Ceylon. These Monkeys have cheek pouches like the others of this family. They do not grow much larger than an English Spaniel Dog and are of a grey color with black faces and great white beards reaching from ear to ear, making them look like old men. They do very little mischief, keeping in the woods, and eating only leaves and buds of trees; but when they are tamed they can be taught to eat anything. The other Monkeys have great respect for this species, looking upon them as their superiors; and they are usually considered by mankind to be much more intelligent than the rest of the Monkey race. THE BARBARY APE. The Barbary Ape is the only Monkey found in Europe, and differs from almost all others belonging to the Macaques, in being without a tail. When full grown it is from three to four feet high. Its general color is olive green and grey; the face is of a dirty flesh color, with brown spots, very much wrinkled, and surrounded with dirty grey hair. It usually goes on all fours. The young animals are very intelligent and gentle, and they are well known throughout Europe as objects of exhibition and amusement. The Barbary Apes prefer to live in rocky places and on the mountains. In their native home they live upon pine cones, chestnuts, figs, melons, nuts and vegetables which they carry off from gardens near their homes, although great care is taken to exclude these mischievous animals. While they are committing their thefts, two or three mount to the summits of the trees, and of the highest rocks to keep watch, and as soon as these sentinels see any one, or hear a noise, they utter a cry of warning, and immediately the whole troop take to flight, carrying off whatever they have been able to lay their hands on. THE BONNET MACAQUES. [Illustration: BONNET MONKEYS.] The Bonnet Monkey is frequently caught for exhibition. It is about the size of a large cat, greenish grey above and white below, with a long tail. The face is naked and wrinkled; the hair of the crown is long and dark, and spreads in all directions, lying upon the surface of the head like hair in a scalp-wig. On this account the animal is sometimes called the Scalp Monkey.