The smooth-coated otter (''Lutrogale perspicillata'') is an
otter species occurring in most of the
Indian subcontinent
The Indian subcontinent is a list of the physiographic regions of the world, physiographical region in United Nations geoscheme for Asia#Southern Asia, Southern Asia. It is situated on the Indian Plate, projecting southwards into the Indian O ...
and
Southeast Asia
Southeast Asia, also spelled South East Asia and South-East Asia, and also known as Southeastern Asia, South-eastern Asia or SEA, is the geographical south-eastern region of Asia, consisting of the regions that are situated south of mainlan ...
, with a disjunct population in
Iraq
Iraq,; ku, عێراق, translit=Êraq officially the Republic of Iraq, '; ku, کۆماری عێراق, translit=Komarî Êraq is a country in Western Asia. It is bordered by Turkey to the north, Iran to the east, the Persian Gulf and K ...
. It is listed as
Vulnerable on the
IUCN Red List
The International Union for Conservation of Nature (IUCN) Red List of Threatened Species, also known as the IUCN Red List or Red Data Book, founded in 1964, is the world's most comprehensive inventory of the global conservation status of biol ...
since 1996 and is threatened by
habitat loss
Habitat destruction (also termed habitat loss and habitat reduction) is the process by which a natural habitat becomes incapable of supporting its native species. The organisms that previously inhabited the site are displaced or dead, thereby ...
,
pollution
Pollution is the introduction of contaminants into the natural environment that cause adverse change. Pollution can take the form of any substance (solid, liquid, or gas) or energy (such as radioactivity, heat, sound, or light). Pollutants, the ...
of
wetland
A wetland is a distinct ecosystem that is flooded or saturated by water, either permanently (for years or decades) or seasonally (for weeks or months). Flooding results in oxygen-free (anoxic) processes prevailing, especially in the soils. The p ...
s and
poaching
Poaching has been defined as the illegal hunting or capturing of wild animals, usually associated with land use rights.
Poaching was once performed by impoverished peasants for subsistence purposes and to supplement meager diets. It was set a ...
for the
illegal wildlife trade
Wildlife trade refers to the of products that are derived from non-domesticated animals or plants usually extracted from their natural environment or raised under controlled conditions. It can involve the trade of living or dead individuals, ti ...
.
As its name indicates, its
fur
Fur is a thick growth of hair that covers the skin of mammals. It consists of a combination of oily guard hair on top and thick underfur beneath. The guard hair keeps moisture from reaching the skin; the underfur acts as an insulating blanket t ...
is smooth and shorter than that of other otter species.
Characteristics
The smooth-coated otter has a short and sleek fur that is dark to reddish brown along the back, but light brown to almost grey on the underside. It is distinguished from other otter species by its more rounded head and a hairless nose in the shape of a distorted diamond. Its tail is flattened, in contrast to the more rounded tails of other otters. Its legs are short and strong, with large webbed feet bearing strong claws. It is a relatively large otter, from in weight and in head-body length, with a tail long. Females have two pairs of teats.
Taxonomy
''Lutra perspicillata'' was the
scientific name proposed by
Étienne Geoffroy Saint-Hilaire
Étienne Geoffroy Saint-Hilaire (15 April 177219 June 1844) was a French naturalist who established the principle of "unity of composition". He was a colleague of Jean-Baptiste Lamarck and expanded and defended Lamarck's evolutionary theories ...
in 1826 for a brown otter collected in Sumatra.
''
Lutrogale
''Lutrogale'' was proposed as generic name by John Edward Gray in 1865 for otters with a convex forehead and nose, using the smooth-coated otter '' L. perspicillata'' as type species.
The genus also contains the following extinct and fossil spec ...
'' was proposed as generic name by
John Edward Gray
John Edward Gray, FRS (12 February 1800 – 7 March 1875) was a British zoologist. He was the elder brother of zoologist George Robert Gray and son of the pharmacologist and botanist Samuel Frederick Gray (1766–1828). The same is used for ...
in 1865 for otters with a convex forehead and nose, using ''perspicillata'' as
type species
In zoological nomenclature, a type species (''species typica'') is the species name with which the name of a genus or subgenus is considered to be permanently taxonomically associated, i.e., the species that contains the biological type specime ...
.
In the 19th and 20th centuries, several
zoological specimen
A zoological specimen is an animal or part of an animal preserved for scientific use.
Various uses are: to verify the identity of a (species), to allow study, increase public knowledge of zoology.
Zoological specimens are extremely diverse. Exampl ...
s were described, including:
*''Lutrogale perspicillata sindica'' proposed by
Reginald Innes Pocock in 1940 were seven pale skins of smooth-coated otters collected in the
Sukkur
Sukkur (; ) is a city in the Pakistani province of Sindh along the western bank of the Indus River, directly across from the historic city of Rohri. Sukkur is the third largest city in Sindh after Karachi and Hyderabad, and 14th largest city ...
and
Khairpur District
Khairpur District ( sd, خيرپور ضلعو, ur, ) is a district in the Pakistani province of Sindh in Sukkur Division. At the 2017 census, it was the fifth most populated district in the province after four districts of Karachi city, with ...
s in Pakistan's
Sindh Province.
*''Lutrogale perspicillata maxwelli'' proposed by