TJIE EXTERNAL FORM OF ANTHROPOID APES. 53 



lighter, verging upon white. The female is generally 

 more j'ellow in colour than the male, and the hair 

 on her face is of a reddish yellow rather than white, 

 but not without a trace of white hairs. The face 

 and the bare places on the hands and feet are black. 

 Between the second and third toes there is a con- 

 nective web reaching as far as the first joints. This 

 animal inhabits the Malacca peninsula. The name 

 of the species is derived from its assumed likeness 

 to the Indian hanuman {Semnopiihecus Eniellus, F. 

 Cuvier), of which an illustration is given in the 

 background to the right of Fig. 14._ 



The white-bearded gibbon {Hylohates leucogenys. 

 Ogilby *) is remarkable for the long, erect hairs 

 which grow on the upper and back part of the scalp, 

 and for the long white beard on the cheeks and 

 chin, which joins the thick growth above the eyes. 

 The rest of the body is dark black. Its native place 

 is doubtful. 



The general colour of the tufted gibbon {Hylohates 

 pileatus, J. E. Gray) is black, shading into grey 

 on the shoulders, back, and thighs. A white ring 

 surrounds the hands, feet, face, and scalp; and there 

 is also a patch of white on the sexual organs, and 

 often a patch of black on the breast. The whiskers 

 are black. In other respects the animal varies 

 according to its sex and age. It is found in Siam 

 and Kambodja. f 



* A specimen of Hylohates leucogenys (Ogilby) may be seen in 

 the British Museum. Comp. J. E. Gray, Catalogue of monkeys, 

 lemurs, etc. ; London, 1870. 



t A good woodcut ot Hylohates pileatus (J. E. Gray) appears in 

 Huxley's work, Man's Place in Nature. 



