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List of mammals of Japan

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This is a list of the mammal species recorded in Japan. There are 153 mammal species in Japan, of which three are critically endangered, twenty-two are endangered, thirteen are vulnerable, and two are near threatened. One of the species listed for Japan is considered to be extinct (See The Wild Mammals of Japan (2009, Ohdachi, S. D. et al. eds. Shoukadoh, Kyoto. ISBN 4-87974-626-6) for recent information.).[1]

The following tags are used to highlight each species' conservation status as assessed by the International Union for Conservation of Nature:

EX Extinct No reasonable doubt that the last individual has died.
EW Extinct in the wild Known only to survive in captivity or as a naturalized populations well outside its previous range.
CR Critically endangered The species is in imminent risk of extinction in the wild.
EN Endangered The species is facing an extremely high risk of extinction in the wild.
VU Vulnerable The species is facing a high risk of extinction in the wild.
NT Near threatened The species does not meet any of the criteria that would categorise it as risking extinction but it is likely to do so in the future.
LC Least concern There are no current identifiable risks to the species.
DD Data deficient There is inadequate information to make an assessment of the risks to this species.

Some species were assessed using an earlier set of criteria. Species assessed using this system have the following instead of near threatened and least concern categories:

LR/cd Lower risk/conservation dependent Species which were the focus of conservation programmes and may have moved into a higher risk category if that programme was discontinued.
LR/nt Lower risk/near threatened Species which are close to being classified as vulnerable but are not the subject of conservation programmes.
LR/lc Lower risk/least concern Species for which there are no identifiable risks.

Order: Sirenia (manatees and dugongs)

Dugongs

Sirenia is an order of fully aquatic, herbivorous mammals that inhabit rivers, estuaries, coastal marine waters, swamps, and marine wetlands. All four species are endangered.

Order: Primates

Japanese macaque

The order Primates contains humans and their closest relatives: lemurs, lorisoids, monkeys, and apes.

Order: Rodentia (rodents)

Red squirrel
Siberian flying squirrel
Japanese dormouse
Grey red-backed vole
Ryukyu long-tailed giant rat

Rodents make up the largest order of mammals, with over 40% of mammalian species. They have two incisors in the upper and lower jaw which grow continually and must be kept short by gnawing. Most rodents are small though the capybara can weigh up to 45 kg (99 lb).

Order: Lagomorpha (lagomorphs)

Amami rabbit
Japanese hare

The lagomorphs comprise two families, Leporidae (hares and rabbits), and Ochotonidae (pikas). Though they can resemble rodents, and were classified as a superfamily in that order until the early 20th century, they have since been considered a separate order. They differ from rodents in a number of physical characteristics, such as having four incisors in the upper jaw rather than two.

Order: Eulipotyphla (shrews, hedgehogs and moles )

Lesser white-toothed shrew
Asian house shrew
Long-clawed shrew
Small Japanese mole

Eulipotyphlans are insectivorous mammals. Shrews and solenodons resemble mice, hedgehogs carry spines, gymnures look more like large rats, while moles are stout-bodied burrowers.

Order: Chiroptera (bats)

Ryukyu flying fox
Mariana fruit bat
Daubenton's bat
Northern bat
Common noctule
Greater horseshoe bat

The bats' most distinguishing feature is that their forelimbs are developed as wings, making them the only mammals capable of flight. Bat species account for about 20% of all mammals.

Order: Cetacea (whales)

Bowhead whales in Shantar Islands
Humpback whale
Western gray whale on Sakhalin
Beluga
Harbour porpoise
Sperm whale
Indo-Pacific bottlenose dolphins at Mikurajima
Spinner dolphins
False killer whale
Killer whale

The order Cetacea includes whales, dolphins and porpoises. They are the mammals most fully adapted to aquatic life with a spindle-shaped nearly hairless body, protected by a thick layer of blubber, and forelimbs and tail modified to provide propulsion underwater.

Order: Carnivora (carnivorans)

Iriomote cat
Red fox
Raccoon dog
Ussuri brown bear
Japanese weasel
Japanese marten
Common seal

There are over 260 species of carnivorans, the majority of which feed primarily on meat. They have a characteristic skull shape and dentition. Wolves and otters are now believed to be extinct in Japan.

Order: Artiodactyla (even-toed ungulates)

Sika deer
Japanese serow

The even-toed ungulates are ungulates whose weight is borne about equally by the third and fourth toes, rather than mostly or entirely by the third as in perissodactyls. There are about 220 artiodactyl species, including many that are of great economic importance to humans.

See also

Notes

  1. ^ This list is derived from the IUCN Red List which lists species of mammals and includes those mammals that have recently been classified as extinct (since 1500 AD). The taxonomy and naming of the individual species is based on those used in existing Wikipedia articles as of 21 May 2007 and supplemented by the common names and taxonomy from the IUCN, Smithsonian Institution, or University of Michigan where no Wikipedia article was available.
  2. ^ http://www.gmnh.pref.gunma.jp/wp-content/uploads/bulletin15_3.pdf

References

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