Black colobus  (Colobus satanas)

Female black colobus holding infant
Female black colobus holding infant
© Nik Borrow		Male Bioko black colobus
Male Bioko black colobus
© Javier Garcia Francisco / BBPP		Bioko black colobus, male
Bioko black colobus, male
© Jenny Johansen / BBPP
Bioko black colobus
Bioko black colobus
© Barbara Johnston, Philadelphia Inquirer / BBPP		Pair of Bioko black colobus sitting in tree
Pair of Bioko black colobus sitting in tree
© Derek Hansen / BBPP		Bioko black colobus sitting on branches
Bioko black colobus sitting on branches
© Derek Hansen / BBPP