Primates in Peril: The World's 25 Most Endangered Primates, 2004–2006

25 Most Endangered Primates Named

http://news.nationalgeographic.com/news/2007/10/photogalleries/primate-pictures/index.html

Roloway Guenon (Ctte d'Ivoire, Ghana)

Cross River Gorilla (Nigeria, Cameroon)

Western Purple-Faced Langur (Sri Lanka)

Horton Plains Slender Loris (Sri Lanka)

Primates in Peril: The World's 25 Most Endangered Primates, 2004–2006

http://dx.doi.org/10.1896/0898-6207.20.1.1