Its forearm-like wings have single claws while its hind feet have five, and its torso is covered in a short hair layer.

Specifically, Myotis nigricans is found in South Mexico (Veracruz, Oaxaca y Chiapas) to Peru, Bolivia, North Argentina, Paraguay, South Brazil, Trinidad and Tobago, and Lesser Antilles (St. Martin, Montserrat and Grenada).

[2] This bat species lives in spaces like tree barks, foliages, and the ceilings of buildings and houses.

On their return to the roost, mothers will use olfactory and auditory skills to locate their respective young.

[7] Studies testing homing skills in the Myotis nigricans suggests that the bats are able to recognize an area with a radius of 13 km.

[8] In order to cool body temperature, they show behavioral thermoregulation by spreading out in the roost into smaller groups.