First seen in 2007
This striking new monkey was found - as other species in Africa and South America have been - kept as a pet in a small village.
The headline from the UK Register is hard to top:
New monkey species with massive blue arse found in Africa
Possibly record-breaking buttocks stun boffinry world
How do I top that?
The discoverers warn: "The challenge for conservation now in Congo is to intervene before losses become definitive. Species with small ranges like the lesula can move from vulnerable to seriously endangered over the course of just a few years."