||Piliocolobus tholloni (Milne-Edwards, 1886)
||Tshuapa Red Colobus, Thollon's Red Colobus
||Colobe de Thollon
||Colobo Rojo del Congo
Colobus tholloni Milne-Edwards, 1886
Procolobus badius ssp. tholloni (Milne Edwards, 1886)
Procolobus pennantii ssp. tholloni (Milne-Edwards, 1886)
Procolobus rufomitratus ssp. tholloni (Milne-Edwards, 1886)
||Mittermeier, R.A., Rylands, A.B. and Wilson D.E. 2013. Handbook of the Mammals of the World: Volume 3 Primates. Lynx Edicions, Barcelona.
||Modern taxonomic arrangements of the colobus monkeys either divide the red colobus and the Olive Colobus into two genera, Piliocolobus and Procolobus, respectively (e.g., Kingdon 1997, Groves 2005), or consider them to belong to one genus, Procolobus, with two subgenera (Procolobus for the Olive Colobus and Piliocolubus for the red colobus) (Grubb et al. 2003 [followed in the 2008 IUCN Red List], Grubb et al. 2013). The arrangement of using two separate genera in Groves (2001, 2005, 2007) is followed here.
This taxon was formerly a subspecies of a wider concept of P. rufomitratus which included subspecies rufomitratus, semlikiensis, foai, langi, oustaleti, parmentieri, tephrosceles and tholloni (subspecies ellioti and lulindicus are no longer recognized). The former subspecies are now treated as distinct species following Groves (2007).
Was treated as a subspecies of P. pennantii by Gautier-Hion et al. (1999).
This is an updated assessment to reflect the change in genus name, the promotion of the subspecies to species-level and the inclusion of information previously contained within the former species-level assessment.
|Red List Category & Criteria:
||Hart, J., Oates, J.F., Struhsaker, T. & Thompson, J.
||Mittermeier, R.A. & Rylands, A.B. (Primate Red List Authority)
This species is listed as Near Threatened as it is believed that it has undergone a population decline on the order of 20-25% over the last three generations, due mainly to intensive pressure from hunting particularly during the period of the Congo War. This is not sufficient to warrant listing in a threatened category, but further research into the hunting pressures may reveal that this species could qualify as Vulnerable under criterion A, all the more since this species is more heavily hunted than many of the other primates occurring in the Congo basin.
|Previously published Red List assessments:|
- 2008 – Near Threatened (NT)
- 1994 – Insufficiently Known (K)
- 1990 – Insufficiently Known (K)
- 1988 – Insufficiently Known (K)