Monkeys Starting with D

De Brazza's monkey is an Old-World primate native to central Africa's swamp and riverine forests. It is the largest species of the guenon family and one of the most widespread African arboreal primates.

The Delacour's langur, also known as Delacour's Lutung, is an endangered Lutung native to northern Vietnam. The species is named after Jean Théodore Delacour, a French-American ornithologist.

The expressive face of Dent's mona monkey is characterized by golden eyes; a flat, long, dark nose; and a pink chin and mouth. Dent mona monkeys are often found in the company of other primate species.

The Diana monkey is an Old-World primate found in the high-canopy forests of Liberia, Sierra Leone, and the western Ivory Coast. Diana monkeys get their name from the white crescent-shaped headband that resembles the crescent moon on the forehead of the Roman goddess Diana, protector of woodlands and wildlife.

The Drill is a primate in the Cercopithecidae family (Old-World monkeys), related to baboons and even more closely to mandrills. Like mandrills, drills are highly social animals that live in groups of around 20 individuals with multiple males and females, with one male dominating reproductive decisions.

The Dryas monkey, also called the Salonga monkey, Inoko, or Ekele is a little-known Old World primate only found in the Congo Basin and restricted to the Congo River's left bank. Unlike guenon monkeys, which make loud leaps and resounding calls, dryas monkeys move silently.

Dusky langurs also known as spectacled langurs, spectacled leaf monkeys, and dusky leaf monkeys, are primarily found in the Malay Peninsula in Asia. White rings surrounding the deep, dark eyes give the species its alternative name, the spectacled monkey or spectacled langur, for a "bespectacled" look.