GABETULA

Gabetula is an Angolan art that is said to involve punching and contributed to Capoeira.

Source

Couldn't find anything except it mentioned in a knowledgable forum post at www.martialtalk.com/forum/archive/index.php/t-12661.html and also mentioned as an art at www.freewebs.com/capangola/aboutmusic.htm and www.uaia.org/uaia/brazil/capoeira.htm