Mandrillus


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Mandrillus

 

a genus of lower catarrhines of the subfamily Cercopithecinae. Closely related to the genus Papio, it comprises two species—the mandrill (Mandrillus sphinx) and the drill (M. leucophaeus). In males, the body length is 70-80 cm, the tail length 7-12 cm, and the weight up to 20 kg. The females are considerably smaller than the males. These animals have powerfully built bodies. The forelimbs are longer than the hind limbs, and the first toe is very large. The head is massive, with a broad and protruding face. Male mandrills, the most brilliantly colored of all mammals, have bright red noses and shiny, blue, wrinkled ridges along the cheeks. Female mandrills and drills have a somewhat paler coloration. There are clusters of white hairs along the sides of the face; the beard is dark orange, and the body fur is brown or black. The buttock pads are red, blue, or violet.

Mandrills and drills are distributed in West Africa (Cameroon, Fernando Poo), where they inhabit rain forests and mountain regions. They stay primarily on the ground, often among rocks. They are omnivorous and live in small groups. Mandrills and drills have gestation periods of approximately eight months. The mating of female mandrills and drills with baboons, mangabeys, and macaques results in offspring.

REFERENCES

Zhizn’ zhivotnykh, vol. 5. Moscow, 1970. Pages 586-87.
Napier, J. R., and P. Napier. A Handbook of Living Primates. London New York, 1967.

M. F. NESTURKH

References in periodicals archive ?
cephus, Colobus guereza, Miopithecus ogouensis, and Mandrillus sphinx (Table 3).
Nucleotide comparison of a 451-bp fragment, corresponding to the best alignment of all the [gamma]-herpesviruses available sequences, indicated that the novel gibbon rhadinovirus sequence was more closely related to the corresponding sequences of the RV2 genogroup viruses (76%, 73%, and 71% of nucleotide identity with ChRV2 (Chlorocebus rhadinovirus 2), MndRHV2 (Mandrillus rhadinovirus 2) and PanRHV2, respectively), than to the corresponding sequences of the RV1 genogroup viruses (70%, 69%, and 63% of nucleotide identity with KSHV, PanRHV1a, and PanRHV1b fragments, respectively).
Wild Mandrillus sphinx are carriers of two types of lentivirus.
Isolation of cytomegalovirus and foamy virus from the drill monkey (Mandrillus leucophaeus) and prevalence of antibodies to these viruses amongst wild-born and captive-bred individuals.
Simian T-cell lymphotropic virus type 1 from Mandrillus sphinx as a simian counterpart of human T-cell lymphotropic virus type 1 subtype D.
The researchers discovered new strains of the virus in three monkey species that had never before been shown to be exposed to SIV, including the red-eared guenon (Cercopithecus erythrotis), as well as a fourth monkey, drills (Mandrillus leucophaeus), close relatives of baboons.