Ponder no more. Here's a photo from National Geographic showing local hunters with a dead R. strykeri that's about to be dinner (photo by Ngwe Lwin). The researchers (Geissmann et al., 2010) were not able to procure a photo of any live R. strykeri. Supposedly, they captured some wild ones but they had escaped before pictures were taken. R. strykeri are threatened by hunting and habitat destruction due to logging.
Geissmann. T, Lwin. G, Aung. S, Naing Aung. T, Aung. Z M, Hla. T, Grindley. M, Momber. F, “A new species of Snub-nosed monkey, Genus Rhinopithecus Milne-Edwards, 1872 (Primates, Colobianae), From Northern Kachin State, Northeastern Myanmar”, American Journal of Primatology, Wiley-Blackwell, October 2010, DOI: 10.1002/ajp.20894
Edit: To request a copy of the paper by Geissmann et al. (2010), click here.