Keen's myotis

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Keen's myotis
Scientific classification
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M. keenii
Binomial name
Myotis keenii
(Merriam, 1895)
File:Myotis keenii distribution.png

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Keen's myotis (Myotis keenii) is a species of vesper bat. It is found in British Columbia in Canada and in Washington and Alaska in the United States.[1] It is named after the Rev. John Henry Keen, who collected the specimen that formed the basis for the first scientific description of the species.[2] Classification for Keen's myotis formerly included the Northern long-eared Myotis (Myotis septentrionalis), resulting in older studies confusing the species for one another.[3]

Description

Measurements: Forearm 1.4-1.6 in., WT 0.25-0.33 oz (7-9 g). Average body length 8–9 cm, tail length 4–5 cm.[4] In appearance, Keen's myotis is very similar to other long-eared bats of the same range, with characteristic dark brown patches on the shoulders.[5]

Behavior

Keen's myotis prefers coastal habitats, but is often found in urban areas as well. It frequently roosts in trees and rock crevices.[6] It is nocternal and insectivorous.[5] Keen's Myotis probably exhibits the same breeding habits of other temperate vespertilionids, but there is little data available.[7]

Lifespan

In the wild, Keen's myotis is recorded living upwards of 12 years,[8] while in captivity, it is reported living 19 years.[7]

See also

References

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External links

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Category:Mouse-eared bats Category:Bats of Canada Category:Bats of the United States Category:Fauna of the Western United States


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