At the touch of the first fang, her eyes flew open.
The " retrovert " or bent-back first pair of appendages is provided with a poison gland opening on the fang or terminal segment.
In later times this gradual pressure from the south-east became greater, and resulted, at a comparatively recent date, in the irruption of the Fang into the Gabun.
The three principal tribes in the Gabun are the Mpongwe, the Fang and the Bakalai.
The so-called colubrine venomous snakes, which retain in a great measure an external resemblance to the innocuous snakes, have the maxillary bone not at all, or but little, shortened, armed in front with a fixed, erect fang, which is provided with a deep groove or canal for the conveyance of the poison, the fluid being secreted by a special poison-gland.