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: Rodentiaa
Subordo: Myomorpha
Superfamilia: Muroidea
Familia: Cricetidae
Subfamilia: Arvicolinae
Genus: Proedromys
Species: Proedromys bedfordi
Name
Proedromys bedfordi Thomas, 1911
Type locality: China (Southern Gansu)
Synonyms
Microtus bedfordi (Thomas, 1911)
References
Proedromys bedfordi 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: Proedromys bedfordi Thomas, 1911 (Vulnerable)
Vernacular names
English: Duke of Bedford's Vole
The Duke of Bedford's vole (Proedromys bedfordi) is a species of rodent in the family Cricetidae.[2] After the Liangshan vole was removed from this genus,[3] the Duke of Bedford's vole became the only member of the genus Proedromys. It is found only in mountainous parts of central China. It is a rare species and the International Union for Conservation of Nature has assessed its conservation status as being "vulnerable".
Description
The Duke of Bedford's vole has a head-and-body length of between 75 and 100 mm (3 and 4 in) and a tail length of 14 to 15 mm (0.55 to 0.59 in). The dorsal fur is long and a dull shade of mid-brown, the underparts are whitish-grey. The upper surface of both fore and hind feet is whitish, and the tail is bicoloured, being brown above and whitish below. The skull is robust, the broad incisors are recurved and have grooves on their outer surfaces, and the molars have no roots and continue to grow throughout the animal's life.[4]
Distribution and habitat
The Duke of Bedford's vole is a rare species and is known from only three localities in China; two of these are in southern Gansu Province and northern Sichuan Province, and the third is the Jiuzhaigou National Nature Reserve, where the vole was discovered for the first time in 2003. It is a forest dweller and has been found at elevations between 2,440 and 2,550 m (8,000 and 8,400 ft). It is also known from fossilised remains and appears to have been more plentiful in the Pleistocene age than it is now.[4]
Status
Very little is known of this vole, the size of the total population, the population trend and the area of occupancy. Its extent of occurrence is probably under 20,000 km2 (7,722 sq mi). The main threat it faces is the destruction of its mountain habitat by logging or conversion to cropland. Because of its small area of occurrence and these other factors, the International Union for Conservation of Nature has assessed the vole's conservation status as being "vulnerable".[1]
References
Johnston, C.; Smith, A.T. (2016). "Proedromys bedfordi". IUCN Red List of Threatened Species. 2016: e.T18305A22379426. doi:10.2305/IUCN.UK.2016-2.RLTS.T18305A22379426.en.
"Proedromys bedfordi". ASM Mammal Diversity Database. American Society of Mammalogists.
"Mictomicrotus liangshanensis". ASM Mammal Diversity Database. American Society of Mammalogists.
Smith, Andrew T.; Xie, Yan; Hoffmann, Robert S.; Lunde, Darrin; MacKinnon, John; Wilson, Don E.; Wozencraft, W. Chris (2010). A Guide to the Mammals of China. Princeton University Press. p. 238. ISBN 978-1-4008-3411-2.
Musser, G. G. and M. D. Carleton. 2005. Superfamily Muroidea. pp. 894–1531 in Mammal Species of the World a Taxonomic and Geographic Reference. D. E. Wilson and D. M. Reeder eds. Johns Hopkins University Press, Baltimore.
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