15 The Haplorrhini – Old World Monkeys

Tori M Saneda

Old World Monkeys & Apes

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Distribution of Old World Monkeys. Modified from original blank map from d-maps.
photo of a macaque looking up
Crab-eating macaque (Macaca fascicularis). By Rushen, CC BY-SA 2.0, via Wikimedia Commons.

Old World monkeys (OWMs) are found in sub-Saharan Africa, southern Asia, and northern Japan. They live in a wide variety of habitats, from tropical jungle to seasonal snow and savannas. Some are arboreal and others terrestrial. There is variety of group structure, but most live in diurnal multi-male, multi-female groups. The traits that unite OWMs are:

  • Lack of prehensile tail
  • Forelimbs are shorter than hindlimbs
  • Quadrupedal
  • Narrow nostrils that are close together
  • Well-developed opposable thumbs and big toes
  • Presence of ischial callosities in many species (hard pads on the lower sides of their buttocks for sitting)
  • More sexual dimorphism than Strepsirhines or NWMs
  • Visible estrus in females
  • Strong dominance hierarchies
  • Bilophodont molars (molars form two parallel ridges)

All OWMs belong to the family Cercopithecidae. They are divided into two subfamilies: Cercopithecinae, monkeys with cheek pouches, and Colobinae, monkeys who are predominately leaf-eaters. There are eighteen genera and about ninety species of OWMs.

Cercopithecinae

photo of a male mandrill with blue, red, and white nose
Mandrill (Mandrillus sphinx). By Photo: Mechthild Müller, CC BY-SA 4.0,  via Wikimedia Commons.

The largest number of OWM species belong to the Cercopithecinae and include the following genera:

  • Allenopithecus, i.e., Allen’s swamp monkey
  • Miopithecus, i.e., talapoin
  • Erythrocebus, i.e., patas monkey
  • Chlorocebus, e.g., vervet monkey and green monkey
  • Cercopithecus, e.g., Diana monkey and Pluto monkey
  • Macaca, e.g., Japanese macaque and booted macaque
  • Lophocebus, e.g., grey-cheeked mangabey and Uganda mangabey
  • Rungwecebus i.e., highland mangabey
  • Papio, e.g., olive baboon and yellow baboon
  • Theropithecus, i.e., gelada
  • Cercocebus, white-eyelid mangabeys, e.g., sooty mangabey and collared mangabey
  • Mandrillus, i.e., mandrill and drill
photo of male, female, and infant Hamadryas baboons perched on rocks
Sexual dimorphism in Hamadryas baboons (Papio hamadryas). By Dick Mudde, Public domain, via Wikimedia Commons.

There are a number of semi-terrestrial cercopithecines, e.g., baboons, who spend their days foraging in the grasslands and sleep either on cliff-faces or in trees. These semi-terrestrial OWMs exhibit significant sexual dimorphism. Canine teeth are large and sharp; this is beneficial for eating but also for defense against rivals and predators. Ischial callosities are present on the ground-dwelling species. Their faces are bereft of fur except for perhaps a beard-like tuft on the chin. Some have interesting coloration of the face or genitals. Male mandrills (pictured above) have the most conspicuous coloring on their faces and rumps, in addition to their penises, which are bright red. Cercopithecines have elongated snouts with the OWM characteristic noses with nostrils that are narrow and set close together.

eight Japanese macaques keeping warm in hot springs surrounded by snow-covered boulders
Japanese macaques (Macaca fuscata) in hotspring at Nagano, Japan. By Yosemite, CC BY-SA 3.0, via Wikimedia Commons.

Cercopithecines vary in size from the smallest at close to three pounds (Miopithecus talapoin) to the largest, the male mandrill (Mandrillus sphinx), at about forty-eight pounds. The smaller cercopithecines spend more time in trees than the large cercopithecines. They inhabit a wide-range of environments, from tropical rain forests, e.g., talapoins and mangabeys, to semi-arid deserts, e.g., chacma baboons (Papio ursinus), and even areas with seasonal snow, i.e., Japanese macaques (Macaca fuscata. In fact, Japanese macaques have an interesting cultural adaptation to living in a cold, snowy region…they hang out in hot springs. Most cheek-pouched monkeys are omnivorous, eating seeds, fruits, leaves, spiders, insects, and even small vertebrates. All cercopithecines live in large multi-male, multi-female groups or single-male, multi-female groups, with bachelor groups forming at times as they migrate from their natal groups. Most females have visible estrus, making it easy for males to tell when the female is fertile. The only species with no to little visible estrus are long-tailed macaques, forest-living guenons, and some mangabeys. Females typically give birth to one offspring at a time.

photo of female vervet monkey holding an infant on her belly, sitting in a tree
Female vervet monkey (Chlorocebus pygerythrus) with infantBy Bernard DUPONT from FRANCE, CC BY-SA 2.0, via Wikimedia Commons.

Colobinae

photo of the face of a golden snub-nosed monkey
Golden snub-nosed monkey (Rhinopithecus roxellana). By PieCam, CC BY-SA 4.0, via Wikimedia Commons.

The Colobinae are quadrupedal folivores, including the colobus monkeys, langurs, and odd-nosed monkeys. There are ten different genera with long tails and various fur coloration:

  • Colobus, e.g., black colobus and Angola colobus
  • Piliocolobus, e.g., Zanzibar red colobus and Bouvier’s red colobus
  • Procolobus, i.e., olive colobus
  • Trachypithecus, e.g., dusky leaf monkey and capped langur
  • Presbytis, e.g., banded surili and Hose’s langur
  • Semnopithecus, e.g., purple-faced langur and Kashmir gray langur
  • Pygathrix, e.g., red-shanked douc and gray-shanked douc
  • Rhinopithecus, e.g., golden snub-nosed monkey and Myanmar snub-nosed monkey
  • Nasalis, i.e., proboscis monkey
  • Simias, i.e., pig-tailed langur
photo of a red-shanked douc langur sitting in a tree
Red-shanked douc langur (Pygathrix cinerea). By Chi King, CC BY 2.0, via Wikimedia Commons.

Most are arboreal and are found in rainforests, mountain forests, savannas, and mangroves. Because of their leafy diet, colobines have multi-chambered, or sacculated, stomachs to break down plant cellulose into useable calories, and long intestines to increase the absorption of nutrients. They are the only ruminant primates. Colobines are smaller than many of the cercopithecines, weighing from about 10 to 34 pounds. They have short snouts in comparison to the cercopithecines and have teeth that are adapted for shearing leaves. Their legs are somewhat longer than their arms. Colobus monkeys have a vestigial thumb, making fine manipulation of objects impossible. They have little to no hair on their faces other than tufts on the cheeks or chin. All except the snub-nosed monkey have long tails that are used to balance when moving. There is variety in group composition. Multi-male, multi-female groups or single-male, multi-female groups are common; monogamy is rare. Bachelor groups may form as males migrate from their natal group. Females usually give birth to one offspring at a time. During estrus, females have visible menstrual bleeding.

photo: head and shoulders of a king colobus monkey laying on a stone
King colobus (Colobus polykomos); note the thumb. By frank wouters, CC BY 2.0, via Wikimedia Commons.
Male proboscis monkey (Nasalis larvatus). By Danielle Brigida, CC BY 2.0, via Wikimedia Commons.

References

Jurmain R, Kilgore L, Trevathan W. 2013. Essentials of physical anthropology, 4th edition. Belmont (CA): Wadsworth, Cengage Learning.

Kamilar JM, Roehrdanz NL. Monkeys, Old World. In: Birx HJ, editor. Encyclopedia of anthropology, Vol. 4. Thousand Oaks (CA): SAGE Reference; 2006. p. 1617-1618.

Martin RD. Old World monkeys I (Colobinae). In: Hutchins M, et al., editors. Grzimek’s animal life encyclopedia, 2nd edition, Vol. 14. Detroit (MI): Gale; 2004. p. 171-186.

Martin RD. Old World monkeys II (Cercopithecinae). In: Hutchins M, et al., editors. Grzimek’s animal life encyclopedia, 2nd edition, Vol. 14. Detroit (MI): Gale; 2004. p. 187-206.

Old World Monkeys [Internet]. c. 2001-2007. Edinburgh (Scotland): The Natural History Collections of the University of Edinburgh: [cited 2015 Jun 29]. Available from: http://www.nhc.ed.ac.uk/index.php?page=493.504.508.512

O’Neill D. 1998-2014. Old World Monkeys. Behavioral Sciences Department, Palomar College [Internet] [cited 2015 Jun 29]. Available from: http://anthro.palomar.edu/primate/prim_6.htm

Cite this page

APA Style: Saneda, T. M. 2022. The haplorrhini: old world monkeys. In T. M. Saneda & M. Field, Biological Anthropology: a brief introduction. Cascadia College Pressbooks.

Chicago Style: Saneda, Tori M. 2022. “The Haplorrhini: Old World Monkeys.” In Biological Anthropology: A Brief Introduction, 3rd. Bothell, WA: Cascadia College Pressbooks.

CSE Style: Saneda TM. 2010. The haplorrhini: old world monkeys. In: Biological Anthropology: a brief introduction, 3rd ed. Bothell (WA): Cascadia College Pressbooks. [modified 2022; accessed 2022 Dec 5]. https://openwa.pressbooks.pub/anth205bioanth/chapter/old-world-monkeys.

 

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