De Winton's Golden Mole
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De Winton's golden mole (''Cryptochloris wintoni'') is a species of
mammal A mammal () is a vertebrate animal of the Class (biology), class Mammalia (). Mammals are characterised by the presence of milk-producing mammary glands for feeding their young, a broad neocortex region of the brain, fur or hair, and three ...
in the family
Chrysochloridae Golden moles are small insectivorous burrowing mammals Endemism, endemic to Sub-Saharan Africa. They comprise the family Chrysochloridae (the only family in the suborder Chrysochloridea) and as such they are Taxonomy (biology), taxonomically dis ...
. It is
endemic Endemism is the state of a species being found only 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 foun ...
to
South Africa South Africa, officially the Republic of South Africa (RSA), is the Southern Africa, southernmost country in Africa. Its Provinces of South Africa, nine provinces are bounded to the south by of coastline that stretches along the Atlantic O ...
. Its natural habitats are subtropical dry
shrubland Shrubland, scrubland, scrub, brush, or bush is a plant community characterized by vegetation dominance (ecology), dominated by shrubs, often also including grasses, herbaceous plant, herbs, and geophytes. Shrubland may either occur naturally o ...
, Mediterranean-type shrubby vegetation, and sandy shores. It is threatened by
habitat destruction Habitat destruction (also termed habitat loss or habitat reduction) occurs when a natural habitat is no longer able to support its native species. The organisms once living there have either moved elsewhere, or are dead, leading to a decrease ...
and is "
critically endangered An IUCN Red List critically endangered (CR or sometimes CE) species is one that has been categorized by the International Union for Conservation of Nature as facing an extremely high risk of extinction in the wild. As of December 2023, of t ...
". It was named after British zoologist
William Edward de Winton William is a masculine given name of Germanic origin. It became popular in England after the Norman conquest in 1066,All Things William"Meaning & Origin of the Name"/ref> and remained so throughout the Middle Ages and into the modern era. It is ...
. Following a sighting in 1937, De Winton's golden mole was not observed for over 86 years until its rediscovery in 2023.


Description

De Winton's golden mole resembles
Grant's golden mole Grant's golden mole (''Eremitalpa granti''; colloquially also: ''dune shark'') is a golden mole species. It is the only member of the genus ''Eremitalpa''. Description Like all other golden moles, the build of these animals is similar to the mo ...
(''Eremitalpa granti'') in appearance. The upper parts have short dense fur that is slate-grey with a yellowish tinge. Individual hairs have grey bases, whitish shafts and fawn tips. The face, cheeks and lips have a more intense yellowish tinge. The underparts are rather paler than the upper parts, individual hairs having white tips. The claw on the third digit on the forefoot is about long and wide at the base. Claw two is slightly shorter and claw one shorter still, making a pointed digging tool.


Status

De Winton's golden mole is known from a single location. It occupies the same range as Grant's golden mole and the two may have been confused. However,
phylogenetic In biology, phylogenetics () is the study of the evolutionary history of life using observable characteristics of organisms (or genes), which is known as phylogenetic inference. It infers the relationship among organisms based on empirical dat ...
evidence indicates that they are different species, based on differences in the skull, the shape of the
malleus The ''malleus'', or hammer, is a hammer-shaped small bone or ossicle of the middle ear. It connects with the incus, and is attached to the inner surface of the eardrum. The word is Latin for 'hammer' or 'mallet'. It transmits the sound vibra ...
and the number of
vertebra Each vertebra (: vertebrae) is an irregular bone with a complex structure composed of bone and some hyaline cartilage, that make up the vertebral column or spine, of vertebrates. The proportions of the vertebrae differ according to their spina ...
e. The type location is
Port Nolloth Port Nolloth is a town and seaport in the Namaqualand region on the northwestern coast of South Africa, northwest of Springbok. It is the seat of the Richtersveld Local Municipality. The port was previously a transshipment point for copper fro ...
, and this mole's habitat is coastal sand dunes and nearby sandy areas. Mining for diamonds near Port Nolloth may be a threat to this species. The
International Union for Conservation of Nature The International Union for Conservation of Nature (IUCN) is an international organization working in the field of nature conservation and sustainable use of natural resources. Founded in 1948, IUCN has become the global authority on the stat ...
now rates this species as "
critically endangered An IUCN Red List critically endangered (CR or sometimes CE) species is one that has been categorized by the International Union for Conservation of Nature as facing an extremely high risk of extinction in the wild. As of December 2023, of t ...
". As with other golden moles, this species is thought to be very difficult to study or physically observe due to its
subterranean Subterranean(s) or The Subterranean(s) may refer to: * Subterranea (geography), underground structures, both natural and man-made Literature * ''Subterranean'' (novel), a 1998 novel by James Rollins * ''Subterranean Magazine'', an American fa ...
nature, although the rarity of ''C. wintoni'' makes it even harder to document, in addition to its close resemblance to other, more common golden moles. In 2017, De Winton's golden mole was listed among the 25 "most wanted lost" species for Re:wild's "Search for Lost Species" initiative, having not been seen since 1937. De Winton's golden mole was rediscovered in 2023 using data and samples from surveys conducted in 2021, including
environmental DNA Environmental DNA or eDNA is DNA that is collected from a variety of environmental samples such as soil, seawater, snow or air, rather than directly sampled from an individual organism. As various organisms interact with the environment, DNA ...
, burrow traces, and
sniffer dogs A detection dog or sniffer dog is a dog that is trained to use its senses to detect substances such as explosives, illegal drugs, wildlife scat, semen, currency, blood, and contraband electronics such as illicit mobile phones. The sense most use ...
. The findings pointed to a healthy population of De Winton's golden mole in the area. The survey's findings also suggest that the species may be far more widespread than thought, as eDNA evidence was found from Port Nolloth (near the species' original type locality) as far south as
Lambert's Bay Lambert's Bay is a small coastal town in the Western Cape province of South Africa situated north of Cape Town. It is part of the Cederberg Municipality. The coast town has been proclaimed 'the Diamond of the West Coast' because of its white bea ...
. However, it is still thought to be very rare over this distribution, and still under threat from mining.


References

{{Taxonbar, from=Q1770353 Afrosoricida Endemic fauna of South Africa Mammals of South Africa Critically endangered fauna of Africa Taxonomy articles created by Polbot Mammals described in 1907 Taxa named by Robert Broom