is of a light grey: the body is of a dark grey, with short, light grey hair on the backs of the hands and feet. The black ears are almost hairless. The lar has up to this time seldom found a place in our zoological collections. It is found in Malacca and Siam. [Illustration: Fig. 10.--Head of the white-handed gibbon.] The white-handed gibbon (_Hylobates albimanus_, Vigors and Horsfield) is often confounded with _H. Lar_. But _H. albimanus_ has a black face, and the general colour of the skin is black, including the inside of the hands and feet. Thick white hair encircles the face, and the backs of the hands and feet are covered with short white or light grey hairs, while the rest of the coat is quite black. The hair of the forearm grows downwards, towards the wrist. The ears of these apes are almost of the shape of an equilateral triangle. The helix of the ear runs like a flap round its free outer edge. The anti-helix passes through the centre of the slightly depressed external surface of the ear, of which the whole arrangement does not essentially differ from that of the ear of other anthropoids. The cartilaginous substance of the organ is a good deal inflected, broad behind and in the upper part, dividing into two limbs in front and below. There are indications of the tragus and anti-tragus. The detached lobule of the ear is absent (Fig. 11). This structure of the external ear is common to other species of gibbons, although in many cases the upper part of the helix is wrinkled, and the anti-helix is sometimes more fully developed, and more like that of the human ear. [Illustration: Fig. 11.--Ear of the white-handed gibbon.]