The black-fronted duiker is a sturdy and active antelope (3), named for the broad black streak that runs from the nose to its forehead (2), which distinguishes this species from the other duikers of Africa (4). Its glossy coat is a shade of red, chestnut, or dark red-brown (2) (4) (5), with the hair becoming thinner and darker, almost black, on the long legs (2) (5). The short tail is black with a white tip (4), and the hooves are exceptionally long and narrow, being well adapted to this species’ often marshy habitats (5). Both male and female black-fronted duikers have short, pointed horns (3), measuring between 4 and 12 centimetres (4), which are used in combat with other duikers and in defence against predators (3). The subspecies Cephalophus nigrifrons rubidus (the Ruwenzori black-fronted duiker), which is recognised by some as a distinct species, differs in appearance by having a white belly and thicker hair (4).
- Head-body length: 80 – 170 cm (2)
- Tail length: 7.5 – 15 cm (2)
- 14 – 18 kg (2)