The giant forest hog and red river hog are prized trophies to be found in the central African rain forest regions. The red river hog Potamochoerus porcus is often referred to as a bushpig and is a close relative of the African bushpig, Potamochoerus larvatus that occurs practically everywhere in Africa. Essentially the red river hog is the 'bushpig' of western and central Africa and the regular bushpig occupies eastern and southern Africa. Where the ranges overlap, they are said to interbreed.
There are in fact 3 subspecies of Giant Forest Hog - Hylochoerus meinertzhageni ivoriensis, which occurs in isolated populations from Guinea to southern Ghana, Hylochoerus meinertzhageni rimator which ranges from south-east Nigeria to eastern Congo and Hylochoerus meinertzhageni meinertzhageni, which occurs as scattered populations from eastern Congo to the Kenyan Rift Valley and Ethiopia.