Vietnam Primate Conservation Status Review 2002 - Hoang Lien ...

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3.4 Delacour’s langur (Trachypithecus delacouri) 69
3.4.1 Taxonomy 71
3.4.2 Description 71
3.4.3 Distribution 72
3.4.4 Delacour’s langur records 75
3.4.5 Status 83
3.4.6 Recommendations for conservation in Vietnam 85
3.5 Grey langur (Trachypithecus crepusculus) 89
3.5.1 Taxonomy 91
3.5.2 Description 91
3.5.3 Distribution 91
3.5.4 Grey langur records in Vietnam 93
3.5.5 Status 101
3.5.6 Recommendations for conservation in Vietnam 102
3.6 Indochinese Silvered langur (Trachypithecus germaini) 103
3.6.1 Taxonomy 105
3.6.2 Description 105
3.6.3 Distribution 106
3.6.4 Indochinese Silvered langur records in Vietnam 108
3.6.5 Status 112
3.6.6 Recommendations for conservation in Vietnam 112
4. Douc langurs 113
4.0 An introduction to the douc langurs (genus: Pygathrix) 115
4.0.1 Taxonomy 115
4.0.2 Morphology, ecology and behaviour 115
4.1 Description 117
4.1.1 Red-shanked douc langur (Pygathrix nemaeus) 117
4.1.2 Black-shanked douc langur (Pygathrix nigripes) 119
4.1.3 Grey-shanked douc langur (Pygathrix cinerea) 119
4.2 Distribution 119
4.3 Douc langur records in Vietnam 124
4.4 Status 140
4.5 Recommendations for conservation in Vietnam 141
5. Snub-nosed monkeys 145
5.0 An introduction to the snub-nosed monkeys (genus: Rhinopithecus) 147
5.0.1 Taxonomy 147
5.0.2 Morphology, ecology and behaviour 147
5.0.3 Distribution 148
5.1 Tonkin snub-nosed monkey (Rhinopithecus avunculus) 149
5.1.1 Taxonomy 149
5.1.2 Description 149
5.1.3 Distribution 151
5.1.4 Tonkin snub-nosed monkey records 151
5.1.5 Status 159
5.1.6 Recommendations for conservation in Vietnam 162