中文摘要：

<正>The genus of snub-nosed monkey comprises five species that are only distributed in very limited areas in China,Vietnam and Myanmar.Tokin snub-nosed monkey(Rhinopithecus avunculus)is endemic to northern Viet-

英文摘要：

The genus of snub-nosed monkey comprises five species that are only distributed in very limited areas in China, Vietnam and Myanmar. Tokin snub-nosed monkey （Rhinopithecus avunculus） is endemic to northern Vietnam; the Burmese snub-nosed monkey （R. strykeri） was recently found in northern Burma （Myanmar） and adjacent parts of China; the other three species, Guizhou snub-nosed monkey （R. brelichi）, Sichuan snub-nosed monkey （R. roxellana） and Yunnan snub-nosed monkey （R. bieti）, are endemic to China （Fig. 1）. Each species of snub-nosed monkeys is among the most endangered species in the world and is a public hot topic and national pride. Pro- tection of snub-nosed monkeys as ＇umbrella＇ species therefore is both biologically and culturally effective way to preserve the whole ecosystems of their native countries [1]. Here, we attempt to briefly summarize recent understanding on socio-ecology, historical distribution changes and possible key factors for the conservation of snub-nosed monkeys.