The Japanese long-eared bat (''Plecotus sacrimontis'') is a species of

vesper bat Vespertilionidae is a family of microbats, of the order Chiroptera, flying, insect-eating mammals variously described as the common, vesper, or simple nosed bats. The vespertilionid family is the most diverse and widely distributed of bat familie ...

endemic to

Japan Japan ( ja, 日本, or , and formally , ''Nihonkoku'') is an island country in East Asia. It is situated in the northwest Pacific Ocean, and is bordered on the west by the Sea of Japan, while extending from the Sea of Okhotsk in the north ...

, where it is found in

Hokkaido is Japan's second largest island and comprises the largest and northernmost prefecture, making up its own region. The Tsugaru Strait separates Hokkaidō from Honshu; the two islands are connected by the undersea railway Seikan Tunnel. The la ...

Honshu , historically called , is the largest and most populous island of Japan. It is located south of Hokkaidō across the Tsugaru Strait, north of Shikoku across the Inland Sea, and northeast of Kyūshū across the Kanmon Straits. The island separ ...

and

Shikoku is the smallest of the four main islands of Japan. It is long and between wide. It has a population of 3.8 million (, 3.1%). It is south of Honshu and northeast of Kyushu. Shikoku's ancient names include ''Iyo-no-futana-shima'' (), '' ...

. It has distinctive, long

ear An ear is the organ that enables hearing and, in mammals, body balance using the vestibular system. In mammals, the ear is usually described as having three parts—the outer ear, the middle ear and the inner ear. The outer ear consists of ...

s, hence its Japanese name, the 'rabbit bat'. Formerly included as a subspecies of the European bat ''

Plecotus auritus ''Plecotus'' is a genus of vesper bat, commonly called long-eared bats. They are found throughout Eurasia and northern Africa. Many species in the genus have only been described and recognized in recent years. Species Genus ''Plecotus'' – lon ...

'', genetic studies now indicate ''Plecotus sacrimontis'' is a separate species.Ohdachi, Satoshi D. I; Ishibashi, Yasuyuki; Iwasa, Masahiro A.; Saitoh, Takashi (2009): ''The Wild Mammals of Japan'', Shoukadoh, Kyoto, C0645

Taxonomy and etymology

It was described as a new species in 1908 by American

zoologist Zoology ()The pronunciation of zoology as is usually regarded as nonstandard, though it is not uncommon. is the branch of biology that studies the Animal, animal kingdom, including the anatomy, structure, embryology, evolution, Biological clas ...

Glover Morrill Allen Glover Morrill Allen (February 8, 1879 – February 14, 1942) was an American zoology, zoologist. He was born at Walpole, New Hampshire, the son of Reverend Nathaniel Glover Allen and Harriet Ann (Schouler) Allen, and studied at Harvard University ...

. The

holotype A holotype is a single physical example (or illustration) of an organism, known to have been used when the species (or lower-ranked taxon) was formally described. It is either the single such physical example (or illustration) or one of several ...

had been collected in December 1906 by

Alan Owston Alan Owston (1853–1915) was born on 7 August 1853 at Pirbright, Surrey and was buried on 30 November 1915 at Yokohama in Japan. He was a collector of Asian wildlife, businessman and yachtsman, and founded the Yokohama Yacht Club in Japan. Alan Ow ...

Mount Fuji , or Fugaku, located on the island of Honshū, is the highest mountain in Japan, with a summit elevation of . It is the second-highest volcano located on an island in Asia (after Mount Kerinci on the island of Sumatra), and seventh-highest p ...

. Allen received the specimen from

Thomas Barbour Thomas Barbour (August 19, 1884 – January 8, 1946) was an American herpetologist. From 1927 until 1946, he was director of the Harvard Museum of Comparative Zoology (MCZ) founded in 1859 by Louis Agassiz at Harvard University in Cambridge, Ma ...

. Allen noted that it resembled the

brown long-eared bat The brown long-eared bat or common long-eared bat (''Plecotus auritus'') is a small Eurasian insectivorous bat. It has distinctive ears, long and with a distinctive fold. It is extremely similar to the much rarer grey long-eared bat which was on ...

, ''Plecotus auritus''. Its

species name In taxonomy, binomial nomenclature ("two-term naming system"), also called nomenclature ("two-name naming system") or binary nomenclature, is a formal system of naming species of living things by giving each a name composed of two parts, bot ...

"''sacrimontis''" is from

Latin Latin (, or , ) is a classical language belonging to the Italic branch of the Indo-European languages. Latin was originally a dialect spoken in the lower Tiber area (then known as Latium) around present-day Rome, but through the power of the ...

sacer '' Sacer'' is Latin for "sacred". Sacer may also refer to: __NOTOC__ Latin terms *'' Homo sacer'', an obscure figure of Roman law who is banned. *''Apparatus sacer'', an overview of the different interpretations of the Old and New Testament by ...

'' meaning "sacred" and ''

mons Mons (; German and nl, Bergen, ; Walloon and pcd, Mont) is a city and municipality of Wallonia, and the capital of the province of Hainaut, Belgium. Mons was made into a fortified city by Count Baldwin IV of Hainaut in the 12th century. T ...

'' meaning "mountain." In 1929,

Nikolay Alekseyevich Bobrinski Professor Count Nikolay Alekseyevich Bobrinski (10 March 1890 – 27 December 1964) was a Russian zoologist and biogeographer. Biography Nikolay Alekseyevich Bobrinski was born on 10 March 1890 into the Russian aristocratic family Bobrinski, B ...

published that he considered ''P. sacrimontis'' as a

synonym A synonym is a word, morpheme, or phrase that means exactly or nearly the same as another word, morpheme, or phrase in a given language. For example, in the English language, the words ''begin'', ''start'', ''commence'', and ''initiate'' are all ...

of ''P. auritus''. In 1938, Allen himself expressed doubts about ''P. sacrimontis'' as a species, saying "Bobrinski...is very likely right in believing the name a synonym of ''P. auritus''." In 1942,

George Henry Hamilton Tate George Henry Hamilton Tate (April 30, 1894 – December 24, 1953) was a British-born American zoologist and botanist, who worked as a mammalogist for the American Museum of Natural History in New York City. In his lifetime he wrote several book ...

published that he considered ''P. sacrimontis'' as a

subspecies In biological classification, subspecies is a rank below species, used for populations that live in different areas and vary in size, shape, or other physical characteristics (morphology), but that can successfully interbreed. Not all species ...

of ''P. auritus'', with a

trinomen In biology, trinomial nomenclature refers to names for taxa below the rank of species. These names have three parts. The usage is different in zoology and botany. In zoology In zoological nomenclature, a trinomen (), trinominal name, or ternary ...

of ''P. auritus sacrimontis''. This was largely maintained until 2006, when Spitzenberger et al. revised the genus ''

Plecotus ''Plecotus'' is a genus of vesper bat, commonly called long-eared bats. They are found throughout Eurasia and northern Africa. Many species in the genus have only been described and recognized in recent years. Species Genus ''Plecotus'' – lon ...

''. They found that ''P. sacrimontis'' had a high

genetic distance Genetic distance is a measure of the genetic divergence between species or between populations within a species, whether the distance measures time from common ancestor or degree of differentiation. Populations with many similar alleles have sma ...

from other ''Plecotus'' species, and thus determined that it should be considered a full species rather than a subspecies of ''P. auritus''.

Description

It has woolly fur and a "mask" of darker fur on its face.

Range and habitat

Its range includes several islands of

, including

, Rebun, and Rishiri. It is also found on the

Kuril Islands The Kuril Islands or Kurile Islands (; rus, Кури́льские острова́, r=Kuril'skiye ostrova, p=kʊˈrʲilʲskʲɪjə ɐstrɐˈva; Japanese: or ) are a volcanic archipelago currently administered as part of Sakhalin Oblast in the ...

, specifically

Iturup , other_names = russian: Итуру́п; ja, 択捉島 , location = Sea of Okhotsk , coordinates = , archipelago = Kuril Islands , total_islands = , major_islands = , area_km2 = 3139 , length_km = 200 , width_km = 27 , coastline = , highest_moun ...

and

Kunashir , other_names = kz, Kün Ashyr; ja, 国後島 , location = Sea of Okhotsk , locator_map = File:Kurily Kunashir.svg , coordinates = , archipelago = Kuril Islands , total_islands = , major_islands = , area = , length = , width = fr ...

. It has been documented at a range of elevations from above sea level.

Conservation

As of 2019, it is evaluated as a

least-concern species A least-concern species is a species that has been categorized by the International Union for Conservation of Nature (IUCN) as evaluated as not being a focus of species conservation because the specific species is still plentiful in the wild. T ...

by the

IUCN The International Union for Conservation of Nature (IUCN; officially International Union for Conservation of Nature and Natural Resources) is an international organization working in the field of nature conservation and sustainable use of natu ...

References

{{Taxonbar, from=Q2164481 Plecotus Bats of Asia Endemic mammals of Japan

Japanese long-eared bat The Japanese long-eared bat (''Plecotus sacrimontis'') is a species of vesper bat endemic to Japan, where it is found in Hokkaido, Honshu and Shikoku. It has distinctive, long ears, hence its Japanese name, the 'rabbit bat'. Formerly included a ...