Superregnum: Eukaryota
Cladus: Unikonta
Cladus: Opisthokonta
Cladus: Holozoa
Regnum: Animalia
Subregnum: Eumetazoa
Cladus: Bilateria
Cladus: Nephrozoa
Superphylum: Deuterostomia
Phylum: Chordata
Subphylum: Vertebrata
Infraphylum: Gnathostomata
Megaclassis: Osteichthyes
Cladus: Sarcopterygii
Cladus: Rhipidistia
Cladus: Tetrapodomorpha
Cladus: Eotetrapodiformes
Cladus: Elpistostegalia
Superclassis: Tetrapoda
Cladus: Reptiliomorpha
Cladus: Amniota
Cladus: Synapsida
Cladus: Eupelycosauria
Cladus: Sphenacodontia
Cladus: Sphenacodontoidea
Cladus: Therapsida
Cladus: Theriodontia
Cladus: Cynodontia
Cladus: Eucynodontia
Cladus: Probainognathia
Cladus: Prozostrodontia
Cladus: Mammaliaformes
Classis: Mammalia
Subclassis: Trechnotheria
Infraclassis: Zatheria
Supercohors: Theria
Cohors: Eutheria
Infraclassis: Placentalia
Cladus: Boreoeutheria
Superordo: Euarchontoglires
Ordo: Rodentia
Subordo: Sciuromorpha
Familia: Sciuridae
Subfamilia: Xerinae
Tribus: Protoxerini
Genus: Paraxerus
Species: Paraxerus alexandri
Name
Paraxerus alexandri (Thomas & Wroughton, 1907)
References
Paraxerus alexandri in Mammal Species of the World.
Wilson, Don E. & Reeder, DeeAnn M. (Editors) 2005. Mammal Species of the World – A Taxonomic and Geographic Reference. Third edition. ISBN 0-8018-8221-4.
IUCN: Paraxerus alexandri (Thomas & Wroughton, 1907) (Least Concern)
Vernacular names
English: Alexander's Bush Squirrel
Alexander's bush squirrel (Paraxerus alexandri) is a species of squirrel native to the Democratic Republic of the Congo and Uganda.[2] It is arboreal and lives in tropical moist forests, especially undisturbed mature forests.[1] It is a common species with a wide range, and the International Union for Conservation of Nature has rated it as being of "least concern". Its common name and Latin binomial commemorate Lieutenant Boyd Alexander, a British Army officer, explorer and ornithologist.[3]
Description
This is a very small squirrel with a head-and-body length of about 100 mm (4 in) and a tail about 110 mm (4.3 in) in length, with a weight of 40 to 70 g (1.4 to 2.5 oz). The fur is a grizzled mixture of yellow, grey and black, with a few black guard hairs, giving an overall impression of a greenish-brown colour. There is a broad band of tawny orange running from the head to the rump, bordered on either side by a thin black band and a narrow creamy-white band. The underparts are a paler greenish-brown colour, sometimes with yellowish blotches. The head is a similar colour, there is a white eye-ring and the ears are fringed with white. The limbs are greenish-brown and there are four digits on the fore-feet and five digits on the hind-feet. The tail tapers towards the tip and is clad in moderate-length hairs and indistinctly barred in ochre and brown.[4]
Distribution and habitat
Alexander's bush squirrel is endemic to tropical Central Africa, where its range includes the northeast part of the Democratic Republic of the Congo and the eastern part of Uganda, from the White Nile to the Lualaba River, and from the Mbomou River in the north of Uganda to the Lukuga River in the south, a total area of occupancy of about 387,450 km2 (150,000 sq mi). It occurs at altitudes of between about 500 and 1,500 m (1,600 and 4,900 ft).[4]
Status
This squirrel has a wide range and is a relatively common species. It is presumed to have a large total population and occur in several protected areas. No particular threats have been identified but it may suffer from some habitat loss as forest land is cleared for agriculture. The International Union for Conservation of Nature has assessed its conservation status as being of "least concern".[1]
References
Cassola, F. (2017) [errata version of 2016 assessment]. "Paraxerus alexandri". IUCN Red List of Threatened Species. 2016: e.T16203A115131561. doi:10.2305/IUCN.UK.2016-3.RLTS.T16203A22242688.en.
Thorington, R.W. Jr; Hoffman, R.S. (2005). "Family Sciuridae". In Wilson, D.E.; Reeder, D.M (eds.). Mammal Species of the World: A Taxonomic and Geographic Reference (3rd ed.). Johns Hopkins University Press. p. 795. ISBN 978-0-8018-8221-0. OCLC 62265494.
Beolens, Bo; Watkins, Michael; Grayson, Michael (2009). The Eponym Dictionary of Mammals. Johns Hopkins University Press. p. 7. ISBN 978-0801893049.
Kingdon, Jonathan; Happold, David; Butynski, Thomas; Hoffmann, Michael; Happold, Meredith & Kalina, Jan (2013). Mammals of Africa. A&C Black. pp. 74–75. ISBN 978-1-4081-8996-2.
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