Several other species of red colobus were formerly considered subspecies of Piliocolobus foai by at least some authors but have since been elevated to full species. These include:[4][5][6]
It was previously thought that Foa's red colobus was made of two formerly separate species, one originally from highlands and the other originally from lowlands, which interbred into a single species.[citation needed] The highland species has since been split into P. foai sensu stricto, while the lowland species has been split into P. lulindicus.[7][8]
Foa's red colobus has long red and black fur on its back and head, with light underparts.[1][7] Males have a body length excluding tail of between 50 and 69 centimetres (20 and 27 in) with a tail that is between 62 and 67 centimetres (24 and 26 in) long.[7] Males typically weigh between 9 and 13 kilograms (20 and 29 lb) and females typically weigh between 7 and 9 kilograms (15 and 20 lb). It has smaller teeth than most other red colobus species.[7]
Behavior
Foa's red colobus is arboreal and diurnal.[1] It has a varied diet which includes leaves, buds, fruit and flowers.[1] It is frequently hunted for bushmeat.[7]
References
^ abcdeSaj, Tania, L. (2016). Rowe, Noel; Myers, Marc (eds.). All the World's Primates. Pogonias Press. p. 535. ISBN9781940496061.{{cite book}}: CS1 maint: multiple names: authors list (link)
^Oates, John & Ting, Nelson (2015). "Conservation consequences of unstable taxonomies: The case of the red colobus monkeys". In Behie, Allison M. & Oxenham, Mark F. (eds.). Taxonomic Tapestries(PDF). Australian National University Press. pp. 321–343. ISBN9781925022360. Retrieved 2019-05-11.
^ abcdefZinner, D.; Fickenscher, G.H. & Roos, C. (2013). Mittermeier, Russell A.; Rylands, Anthony B. & Wilson, Don E. (eds.). Handbook of the Mammals of the World: Volume 3, Primates. Lynx. p. 710. ISBN978-8496553897.
^ abOregon), Nelson Ting (University of; Society), John Hart (Wildlife Conservation; Society), Fiona Maisels (Wildlife Conservation (2020-01-12). "IUCN Red List of Threatened Species: Piliocolobus foai". IUCN Red List of Threatened Species.