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Chaerephon johorensis

Superregnum: Eukaryota
Regnum: Animalia
Subregnum: Eumetazoa
Cladus: Bilateria
Cladus: Nephrozoa
Superphylum: Deuterostomia
Phylum: Chordata
Subphylum: Vertebrata
Infraphylum: Gnathostomata
Superclassis: Tetrapoda
Cladus: Reptiliomorpha
Cladus: Amniota
Cladus: Synapsida
Cladus: Eupelycosauria
Cladus: Sphenacodontia
Cladus: Sphenacodontoidea
Cladus: Therapsida
Cladus: Theriodontia
Cladus: Cynodontia
Cladus: Mammaliaformes
Classis: Mammalia
Subclassis: Trechnotheria
Infraclassis: Zatheria
Supercohort: Theria
Cohort: Eutheria
Cohort: Placentalia
Cladus: Boreoeutheria
Superordo: Laurasiatheria
Ordo: Chiroptera
Subordo: Microchiroptera
Superfamilia: Molossoidea

Familia: Molossidae
Subfamilia: Molossinae
Genus: Chaerephon
Species: Chaerephon johorensis

Chaerephon johorensis Dobson, 1873

Type locality: Malaysia, Johore.

Dobson, 1873. Proceedings of the Asiatic Society of Bengal: 22.
Conservation status: IUCN: Chaerephon johorensis (Near Threatened)
Chaerephon johorensis in Mammal Species of the World.
Wilson, Don E. & Reeder, DeeAnn M. (Editors) 2005. Mammal Species of the World – A Taxonomic and Geographic Reference. Third edition. ISBN 0-8018-8221-4.


West Malaysia
Sumatra (Indonesia)

Vernacular names
English: Northern Free-tailed Bat.
Bahasa Melayu: Kelasar Johor
The northern free-tailed bat (Chaerephon johorensis) is a species of bat in the family Molossidae. It is found in Indonesia and Malaysia.

Taxonomy and etymology

It was described as a new species in 1873 by Irish zoologist George Edward Dobson. Dobson had obtained the holotype from James Wood-Mason. Dobson initially placed it in the genus Molossus and the subgenus Nyctinomus, with a scientific name of Molossus (Nyctinomus) johorensis.[2] Its species name "johorensis" is Latin for "belonging to Johor." Johor is a state in Malaysia; the holotype was collected there.

Its ears are large and round. Its tragi are small and squarish in shape. Its ears are connected to each other by a band of tissue called the interaural membrane. As a free-tailed bat, its tail extends beyond the uropatagium. Its dental formula is, for a total of 36 teeth.[2]

It is currently listed as vulnerable by the IUCN. It meets the criteria for this designation because its population have declined by more than 30% from 2004–2014.[1]

Senawi, J.; Csorba, G.; Kingston, T. (2020). "Chaerephon johorensis". IUCN Red List of Threatened Species. 2020: e.T4313A22019065. doi:10.2305/IUCN.UK.2020-2.RLTS.T4313A22019065.en. Retrieved 17 November 2021.
Dobson, G. E. (1873). "Description of a Remarkable New Species of Molossus (Nyctinomus), from Johore in the Malay Peninsula". Asiatic Society of Bengal: 22.

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