 Its forearm-like wings have single claws while its hind feet have five, and its torso is covered in a short hair layer.The genus "Myotis" consists of more than 100 species worldwide, except the Antarctic.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).