GENERA AND SPECIES 



Pace 



Pygathrix rhionis 58 



Pygathrix cana 58 



Pygathrix siamensis 59 



Pygathrix catemana 60 



Pygathrix aygula 60 



Pygathrix fusco-murina 62 



Pygathrix sabana 63 



Pygathrix everetti 63 



Pygathrix hosei 64 



Pygathrix thomasi 65 



Pygathrix potenziani 67 



Pygathrix francjoisi 68 



Pygathrix cephaloloptera 68 



Pygathrix c. monticola 71 



Pygathrix senex 71 



Pygathrix johni 72 



Pygathrix ursina 74 



Pygathrix aurata 75 



Pygathrix cristata 79 



Pygathrix c. pullata 80 



Pygathrix ultima 81 



Pygathrix margarita 81 



Pygathrix germaini 82 



Pygathrix crepuscula 84 



Pygathrix c. wroughtoni 8S 



Pygathrix entellus 86 



Pygathrix albipes 91 



Pygathrix schistaceus 92 



Pygathrix lania 93 



Pygathrix pileata 94 



Pygathrix hypoleuca 95 



Pygathrix priamus 96 



Pygathrix nemasus 98 



Pygathrix nigripes 100 



Rhinopithecus • 102 



Rhinopithecus roxellanae 102 



Rhinopithecus bieti 103 



Rhinopithecus brelichi 105 



Rhinopithecus avunculus 106 



Simias 109 



Simias concolor 109 



Nasalis Ill 



Nasalis larvatus Ill 



Colobus lis 



Colobus venis 122 



