Order Chiroptera - Family Phyllostomidae Author Wilson, Don E. Author Reeder, DeeAnn text 2005 The Johns Hopkins University Press Baltimore Mammal Species of the World: a Taxonomic and Geographic Reference (3 rd Edition), Volume 1 395 426 book chapter 0-8018-8221-4 10.5281/zenodo.7316519 Neonycteris pusilla Sanborn 1949 Neonycteris pusilla Sanborn 1949 , Fieldiana Zool., 31: 228 . Type Locality: Brazil , Amazonas , Tahuapunta (Vaupes River). Vernacular Names: Least Big-eared Bat . Distribution: NW Brazil , E Colombia . Conservation: IUCN 2003 and IUCN / SSC Action Plan (2001) – Vulnerable as Micronycteris pusilla . Discussion: Known only from the type series.