Perodicticus ibeanus ssp. stockleyi (Mount Kenya Potto)

[Sebbe]

This subspecies is only known from an adult female collected at 1830m on Mt Kenya on 29 June, 1938. Have not been rediscovered despite considerble survey effort and will be listed as CR (Possibly Extinct) in the next update of the IUCN Red List.

Distribution of the Potto Perodicticus potto (Primates: Lorisidae) in Eastern Africa, with a Description of a New Subspecies from Mount Kenya

The potto Perodicticus potto is a small, arboreal, nocturnal primate with an extensive, but poorly-known, distribution through tropical Africa, and a debated taxonomy. This paper (1) examines the Eastern Rift Valley as a major barrier to primate distribution in eastern Africa, (2) reviews the taxonomy of P. potto, (3) describes the distribution of the eastern potto P.p. ibeanus, (4) summarizes what is known about the body size, abundance, elevation and rainfall limits of P.p. ibeanus, (5) provides evidence for the presence of P. potto east of the Eastern Rift Valley, and (6) describes, names, and discusses a new subspecies of Perodicticus for Mount Kenya (the ‘Mount Kenya potto’ Perodicticus potto stockleyi). The geographic range for P.p. ibeanus is ca. 850 000 km2 and extends from western Democratic Republic of Congo to western Kenya. P.p. ibeanus occurs where the mean annual rainfall is between 1300–2000 mm, and is not known to be present below 600 m or above 2300 m. Densities range from <2–28 individuals/km2. P.p. stockleyi is described from one specimen that is phenotypically distinct from P.p. ibeanus and that derives from a population that is probably isolated from the nearest population of P.p. ibeanus by >175 km.

www.cepf.net/Documents/Butynski_deJong2007_P.potto_JEANH.pdf

[Sebbe]

The Mount Kenya Potto is a Subspecies of the Eastern Potto Perodicticus ibeanus

The Mount Kenya potto is currently considered a subspecies of the western potto (i.e.,Perodicticus potto stockleyi).We argue that the Mount Kenya potto is a subspecies of the eastern potto (i.e.,Perodicticus ibeanus stockleyi). This subspecies has not been observed alive for 79 years, and is assessed on the 2017 Red List as Critically Endangered (Possibly Extinct). Weindicate priority field sites in which to search for P. i. stockleyi.

static1.1.sqspcdn.com/static/f/1200343/27559402/1494533755543/PC31_Butynski_De_Jong_Perodicticus.pdf?token=UeguvtWQJ7DzCN8dv0wbnRNsN6E%3D

[Melanie]

This subspecies is listed as Critically Endangered, this subspecies is known from a single specimen collected in 1938 on Mount Kenya, central Kenya. There may be <50 mature individuals remaining. Much of the presumed habitat of Perodicticus ibeanus stockleyi is lost, fragmented or degraded and the damage continues. It may be that P. i. stockleyi is extinct.

www.iucnredlist.org/species/136932/17991738

[redpinnipedgamer]

www.wildsolutions.nl/mount-kenya-potto-lost-subspecies/