Sauim-de-coleira (Saguinus bicolor)

This is a endangered primate species that lives in forests around Manaus (Brazil), there's only a few groups living now. I took this pic at the National Institute of Amazonian Research.
I wish I had battery at my flash at that time, the photo would be in much better quality.
Anyway, I was really happy to see this monkey so close to me (maybe that's why this species is endangered), and that I had my La Sardina in hands at that time.