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The mainland drill (Mandrillus leucophaeus leucophaeus) is a subspecies of the endangered drill. It is distinguished by ringed yellow and black coloring on its crown, and is otherwise similar to the Bioko drill.
Mandrillus is a genus of large Old World monkeys distributed throughout central and southern Africa, consisting of two species: M. sphinx and M. leucophaeus, the mandrill and drill, respectively. [4] Mandrillus , originally placed under the genus Papio as a type of baboon , is closely related to the genus Cercocebus . [ 5 ]
The drill is a short-tailed monkey up to 70 cm (28 in) long, similar in appearance to the mandrill, but lacks the bright blue and red on the face of that species. It has high sexual dimorphism in weight, with males weighing up to 20 kg (44 lb) and females up to 12.5 kg (28 lb). [4] A close-up of face. The body is overall a dark grey-brown.
The Bioko drill (Mandrillus leucophaeus poensis) is a subspecies of the drill, an Old World monkey. It is endemic to Bioko Island, Equatorial Guinea, [4] located off the west coast of Africa. [5] The drill is one of the largest monkey species, and is considered endangered. [5]
Its current generic name Mandrillus was coined by Ferdinand Ritgen in 1824. [9] Historically, some scientists placed the mandrill and the closely related drill (M. leucophaeus) in the baboon genus Papio. Morphological and genetic studies in the late 20th and early 21st centuries found a closer relationship to white-eyelid mangabeys of the genus ...
Mandrillus leucophaeus poensis; Mainland drill; Mandrill This page was last edited on 2 April 2018, at 13:22 (UTC). Text is available under the Creative Commons ...
Common name Scientific name and subspecies Range Size and ecology IUCN status and estimated population Allen's swamp monkey. A. nigroviridis (Pocock, 1907) Central Africa: Size: 33–51 cm (13–20 in) long, plus 35–52 cm (14–20 in) tail [4] Habitat: Forest [5] Diet: Fruit, leaves, and small invertebrates [6] LC Unknown [5]
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