The black-backed shrew mole (''Uropsilus atronates'') is a species of

mammal Mammals () are a group of vertebrate animals constituting the class Mammalia (), characterized by the presence of mammary glands which in females produce milk for feeding (nursing) their young, a neocortex (a region of the brain), fur or ...

in the family

Talpidae The family Talpidae () includes the moles (some of whom are called shrew moles and desmans) who are small insectivorous mammals of the order Eulipotyphla. Talpids are all digging animals to various degrees: moles are completely subterranean a ...

. It is

endemic Endemism is the state of a species being found in a single defined geographic location, such as an island, state, nation, country or other defined zone; organisms that are indigenous to a place are not endemic to it if they are also found elsew ...

China China, officially the People's Republic of China (PRC), is a country in East Asia. It is the world's most populous country, with a population exceeding 1.4 billion, slightly ahead of India. China spans the equivalent of five time zones and ...

, where it is only known from the vicinity of Mucheng in

Yunnan Province Yunnan , () is a landlocked province in the southwest of the People's Republic of China. The province spans approximately and has a population of 48.3 million (as of 2018). The capital of the province is Kunming. The province borders the C ...

. It was formerly considered synonymous with the

gracile shrew mole The gracile shrew mole (''Uropsilus gracilis'') is a species of mammal in the family Talpidae. It is endemic to China; populations known from Myanmar likely represent other species (see below). The black-backed shrew mole (''U. atronates'') an ...

(''U. gracilis''), but a 2018 phylogenetic study found it to be a distinct species. The study found it to be

sister species In phylogenetics, a sister group or sister taxon, also called an adelphotaxon, comprises the closest relative(s) of another given unit in an evolutionary tree. Definition The expression is most easily illustrated by a cladogram: Taxon A and t ...

to a

clade A clade (), also known as a monophyletic group or natural group, is a group of organisms that are monophyletic – that is, composed of a common ancestor and all its lineal descendants – on a phylogenetic tree. Rather than the English term, ...

comprising ''U. gracilis'' and a putative undescribed species of ''

Uropsilus The shrew moles or shrew-like moles (''Uropsilus'') are shrew-like members of Talpidae, the mole family of mammals endemic to the forested, high-alpine region bordering China, Myanmar, and Vietnam. They possess a long snout, a long slender tail, ...

''. Both groups likely diverged during the early-mid

Pleistocene The Pleistocene ( , often referred to as the ''Ice age'') is the geological Epoch (geology), epoch that lasted from about 2,580,000 to 11,700 years ago, spanning the Earth's most recent period of repeated glaciations. Before a change was fina ...

References

{{Taxonbar, from=Q99194714 Uropsilus Mammals of China Endemic fauna of Yunnan Mammals described in 1925 Taxa named by Glover Morrill Allen