Kerivoula oreias Temminck, 1840:270

Singapore whiskered bat, Singaporese whiskered myotis



Taxonomy & Nomenclature

Synonym/s: Myotis oreias Temminck, 1840:270; Vespertilio oreias Temminck, 1840:270


The holotype is too damaged to assess its taxonomic validity, despite a redescription by (Francis & Hill, 1998) (Csorba et al., 2016a,b)


Conservation Status

Unresolved (nomen nudum?)

Last (and only) record: 1840 or prior

IUCN RedList status: Data Deficient


This species is only known from the holotype, which is unfortunately damaged, hampering efforts to evaluate it's true taxonomic status. It was officially redescribed by (Francis & Hill, 1998). Surveys have been carried out (Pottie et. al. 2005) which have failed to relocate the species, leading to suggestions that it may in fact be extinct. However, some doubt has previously been expressed about the country of origin of the holotype.



Singapore? (see Francis & Hill, 1998)


Biology & Ecology




Only known from the holotype.






Original scientific description:

Temminck. (1840). [description of Myotis oreias]. Monogr. Mamm., 2: 270.


Other references:

Csorba, Gábor & Bates, P. (2008). Myotis oreias. In: IUCN 2011. IUCN Red List of Threatened Species. Version 2011.1. ( Downloaded on 18 October 2011.

Csorba, Gábor, Bates, P., Lee, B. and Soisook, P. (2016a). Myotis oreias. The IUCN Red List of Threatened Species 2016: e.T14186A22067080. Accessed on 10 May 2023.

Csorba, Gábor, Smeenk, Chris and Lee, Benjamin P. Y.-H. (2016b). The identity of Vespertilio oreias Temminck, 1840—solving a taxonomic puzzle. Zootaxa 4205(6): 564-570.

Flower, S. S. (1900). On the mammalia of Siam and the Malay Peninsula. Proceedings of the Zoological Society, 1900: 306–379.

Francis, C. M. and Hill, J. E. (1998). New records and a new species of Myotis (Chiroptera, Vespertilionidae) from Malaysia. Mammalia 62(2): 241-252. [Summary]

Martin, Thomas E., Bennett, Gareth C., Fairbairn, Andrew J. and Mooers, A. Ø. (2023). ‘Lost’ taxa and their conservation implications. Animal Conservation 26(1): 14-24. [Appendix S2 (1617 taxa not seen >10 years); Appendix S3 (562 taxa not seen >50 years)]

Pottie, Shirley A., David J. W. Lane, Tigga Kingston and Benjamin P. Y. H. Lee. (2005). The microchiropteran bat fauna of Singapore. Acta Chiropterologica 7(2): 237–247.


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