Part 1 Evolution and systematics: the evolution of the doucs and snub-nosed monkeys and the phyletic unity of the odd-nosed monkeys, N.G. Jablonski; classification and distribution of the extant subspecies of golden snub-nosed monkey ("Rhinopithecus roxellana"), Y.-X. Wang et al; mitochondrial cytochrome b gene sequences of langurs - evolutionary inference and conservation relevance, Y.-P. Zhang and O.A. Ryder. Part 2 Anatomy: the integument of the odd-nosed colobines, G. Chaplin and N.G. Jablonski; mandibular morphology of the doucs and snub-nosed monkeys in relation to diet, N.G. Jablonski et al; the morphology of the gastrointestinal tract of "Pygathrix nemaues" (Linnaeus, 1771), J.M. Caton. Part 3 Ecology and behaviour: ecology and behaviour in snub-nosed and douc langurs, R.C. Kirkpatrick; natural history of douc langurs, L.K. Lippold; preliminary observations on the ecology and behaviour of the Tonkin snub-nosed monkey ("Rhinopithecus avunculus") in Northern Vietnam, R. Boonratana and X.C. Le; ecology and behaviour of the Guizhou snub-nosed langur ("Rhinopithecus brelichi"), with a discussion of the socioecology in the genus, W. Bleisch and J.-H. Xie; selected nutrient analysis of plants in the diet of the Guizhou snub-nosed monkey ("Rhinopithecus brelkichi"), W. Bleisch et al; preliminary survey of the home range and ranging behaviour of golden monkeys ("Rhinopithecus roxellana") in Shennongjia National Natural Reserve, Hubei, China, Y.-J. Su et al; preliminary survey of the social organization of "Rhinopithecus roxellana" in Shennongjia National Natural Reserve, Hubei, China, R.-M. Ren et al; time budgets of the Yunnan snub-nosed monkey ("Thinopithecus bieti"), Y.-C. Long et al. Part 4 Conservation: primate conservation in Vietnam, L.K. Lippold and V.N. Thanh; conservation status and prospects of the snub-nosed langurs (Colobinae - "Rhinopithecus"), R.-M. Ren et al; conservation of Tonkin snub-nosed monkeys ("Rhinopithecus avunculus") in Vietnam, R. Boonratana and X.C. Le; maintenance and breeding of Yunnan snub-nosed monkeys ("Rhinopithecus bieti") in captivity, W.-Z. Ji et al; appendix - toward a gazetteer of the snub-nosed and douc langurs, R.C. Kirkpatrick.