From: http://www.angelfire.com/bc2/cryptodominion/frames.html

N'guma-monene (Congo Repuplic and other countries in the Congo AFRICA): N'guma-monene is described as a large, snake-like animal that is not a snake. In modern times it has been likened o a dinosaur without any legs. If it exists, I doubt it is a true snake, more along the lines of a legless crocodile or mayhaps a descendent of some ancient reptile group which has lost it's legs over the ages.