| Brown long-eared bat | |
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Scientific classification 
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| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Mammalia |
| Order: | Chiroptera |
| Family: | Vespertilionidae |
| Genus: | Plecotus |
| Species: | P. auritus
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| Binomial name | |
| Plecotus auritus | |
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| Synonyms | |
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Vespertilio auritus Linnaeus, 1758 | |
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 only validated as a distinct species in the 1960s. An adult brown long-eared bat has a body length of 4.5–4.8 cm, a tail of 4.1–4.6 cm, and a forearm length of 4–4.2 cm. The ears are 3.3–3.9 cm in length, and readily distinguish the long-eared bats from most other bat species. They are relatively slow flyers compared to other bat species.
- ^ Russo, D.; Cistrone, L. (2023). "Plecotus auritus". IUCN Red List of Threatened Species. 2023: e.T85535522A211015413. doi:10.2305/IUCN.UK.2023-1.RLTS.T85535522A211015413.en. Retrieved 12 January 2024.
- ^ Linnæus, Carl (1758). Systema naturæ per regna tria naturæ, secundum classes, ordines, genera, species, cum characteribus, differentiis, synonymis, locis. Tomus I (in Latin) (10th ed.). Holmiæ: Laurentius Salvius. p. 32. Retrieved 22 November 2012.