Geographical distribution of Dark long-tongued bat. Note that Gardner 2007 considers the eastward south american disjunct population to be of a different species: Pale Brown Long-nosed Bat (Lichonycteris degener).
A field guide to the mammals of Central America &amp; Southeast Mexico. 2nd ed.  2009. written &amp; illustrated by Fiona A. Reid. Oxford ; New York : Oxford University Press. ISBN:9780195343229
Mammals of South America: v. 1. Marsupials, xenarthrans, shrews, and bats. 2007. edited by Alfred L. Gardner. Chicago : University of Chicago Press, ISBN:9780226282404
Cephas