From Boing Boing:
Take the lesula (or Cercopithecus lomamiensis), an African monkey whose “discovery” is making headlines this week. While it does seem to be true that this particular species hasn’t been previously named and documented in the scientific literature, the scientists who wrote about the lesula were not the first people to encounter one. What’s more, lesula do not represent a species totally removed from animals we already knew about.