GIBBON, hylobates, a genus of apes, or tailless monkeys, natives of the East Indies: They arc nearly allied to the orangs and chimpanzees, but are of more slender form, and their arms so long as almost to reach the ground when they are placed in an erect posture; there are also naked callosities on the -buttocks. The canine teeth are long. The gibbons are inhabitants of forests, their long arms enabling them to swing them selves from bough to bough, which they do to wonderful distances, and with extreme agility. They cannot, however, move with ease or rapidity on the ground. The con formation of their hinder extremities adds to their difficulty in this, whilst it increases their adaptation to a life among the branches of trees, the soles of their feet being much turned inwards. None of the gibbons are of large size. The Co3nr0sr GIBBON, or LASS GIBBON (H. ktr)--black, with a border of gray hair around the face—is found in some
parts of India, and in more eastern regions. The WHITE-HANDED GIBBON (H. albimana). —black, the face bordered with gray, and the four hands whiteis a native of Sumatra. The AcTrvE GraBox agilis), found in Sumatra, is particularly remarkable for the power which it displays of flinging itself from one tree to another, clearing at once, it is said, a distance of 40 feet. The Wow-wow (IL leuciscus) is a gibbon found in Malacca and the Sunda isles. The HooLocx hooZock,) is a native of the Garrow Hills. The SIAMANG (H. syndactyla), a Sumatran species, differs from the rest of the genus in having the first and second fingers of the hinder extremities united to the second joint. All the gibbons are of gentle disposition, and easily domesticated.