Only Six Emotions

Happiness, sadness, surprise, fear, disgust and anger. I have to admit, I have seen all these emotions on the faces of nonhuman primates, and some other mammals as well. Can you name another emotion? Or ten more? And do they break down to just this six??

What I thought of:
Jealousy. Is anger and fear and sadness.
Ecstasy. Is happiness and surprise.
Boredom. Is disgust and sadness. Or not an emotion, but rather a state of disinterest, a lack of focus or flow.
Confusion. Is not an emotion? Is a cognitive state of uncomprehending.

Maybe?