A relative of the saddleback tamarin has been discovered in the Amazon:
New monkey discovered in Brazilian Amazon - Yahoo! News
New monkey discovered in Brazilian Amazon - Yahoo! News
Some new discoveries seem to attract the media's attention, whereas many others go almost unreported.
The new tamarin, though it's 'only' a subspecies of a known species (Saguinus fuscicollis) seems to have received far more attention than the recent discovery of a whole new genus of salamander (Urspelerpes) in North America. Probably salamanders aren't cute enough to appeal to the mass-media.