CONTENTS Introduction................... 3 Order Primates.................. 6 Family Cercopithecidae................ 6 Genus Presbytis................. 6 Presbytis melalophos (Raffles)............ 6 Presbytis aygula (L.)............... 16 Presbytis rubicunda (Müller)............. 18 Presbytis frontata (Müller)............. 20 Presbytis and Trachypithecus............. 20 Pleistocene remains of Presbytis from Java......... 24 Cave material of Presbytis from Sumatra......... 25 Genus Trachypithecus............... 25 Trachypithecus cristatus (Raffles)........... 25 Race and sex in Trachypithecus cristatus.......... 32 Pleistocene remains of Trachypithecus from Java....... 37 Trachypithecus cristatus robustus nov. subsp......... 41 Cave material of Trachypithecus from Java......... 41 Cave material of Trachypithecus from Sumatra........ 42 Genus Macaca................. 44 Macaca fascicularis (Raffles)............. 44 Macaca nemestrina (L.).............. 48 Pleistocene remains of Macaca from Java......... 50 Cave material of Macaca from Java.......... 54 Cave material of Macaca from Sumatra......... 57