1962V.F.M. FitzsimonsSnakes of Sn Afr. 37Cobras that ‘spit’ or squirt their venom...The Rinkals..and the Black-necked Spitting Cobra or Mfesi.
1978C.J. ReitzPoisonous S. Afr. Snakes 16The m’fezi is mainly nocturnal and prefers areas near water. Its bite is very dangerous...It is able to spit from virtually any position, not only from the reared-up position.