Bidentate yellow-shouldered bat

The bidentate yellow-shouldered bat (Sturnira bidens) is a species of bat in the family Phyllostomidae. It is found in South America.

Taxonomy and etymology
It was described as a new species in 1915 by British zoologist Oldfield Thomas. The holotype had been collected by Walter Goodfellow in April 1914 in Baeza, Ecuador. Thomas described a new, now-defunct genus, Corvira, giving the species the binomial of Corvira bidens. The species name "bidens" is Latin for "two teeth;" of the bidentate yellow bat, Thomas wrote, "lower incisors only two."

Description
It has a forearm length of 39.3-43.3 mm. It has a long and narrow snout and an overall narrow skull. It has a dental formula of for a total of 30 teeth.

Range and habitat
Its range includes Peru, Ecuador, Colombia, and Venezuela. It is found in association with the Andes Mountains at elevations of 1700-3000 m.

As of 2018, it was evaluated as a least-concern species by the IUCN, which is its lowest conservation priority.