I light of recent talk in the Hu-die-dao thread, I'd like to revive this.
Here is the link to a preview of 
Pirates of the South China Coast, 1790-1810 by Dian H. Murray.
I've decided to highlight a few things to make it easier (since there's a lot of readable text there). 
 
 
Does anyone have pictures or examples of any of these weapons? 
They are definitely a bit different than your classic Chinese weapons... 
Yao-tao? Curved billhook-like blade? Now thats quite different than your normal Chinese weaponry, in fact that reminds me of Taiwanese machetes (開山刀) more than anything else...