Diana guenon  (Cercopithecus diana)

Close up of a Diana guenon

© Daniel Heuclin / www.nhpa.co.uk

Female Diana guenon showing distinctive white markings on shoulders and forearm

© John Waters / naturepl.com

Female Diana guenon

© John Waters / naturepl.com

Diana guenon

© Anup Shah / naturepl.com

Diana guenon portrait

© Anup Shah / Animals Animals

Diana guenon on grass

© Dave Watts / www.nhpa.co.uk

Diana guenon eating leaves

© A & M Shah/AA / www.osfimages.com

Female Diana guenon, eating

© Alan Greensmith / www.ardea.com

Diana guenon eating

© C. Johnson / www.nhpa.co.uk

Diana guenon in tree

© Eric Baccega / naturepl.com

Diana guenon calling

© Daniel Heuclin / www.nhpa.co.uk

Diana guenon in tree canopy

© Nick Gordon / www.osfimages.com

Adult male Roloway monkey Cercopithecus diana ssp. roloway, performing a genital display

© Sheila Curtin

Adult male Roloway monkey Cercopithecus diana ssp. roloway, performing a genital display

© Sheila Curtin

Adult male Roloway monkey Cercopithecus diana ssp. roloway, performing a genital display

© Sheila Curtin