Subspecies and Distribution. E.u.underwood:GG..G.Goodwin,1940—fromNWMexico(Chihuahua)SalongPacificslopeintoCentralAmerica,includingGuatemala,Belize,ElSalvador,Honduras,WNicaragua,andNWCostaRica. E. u. sonoriensis Benson, 1947 — SW USA (S Arizona) and NW Mexico (Sonora). in Molossidae

Subspecies and Distribution. E.u.underwood:GG..G.Goodwin,1940—fromNWMexico(Chihuahua)SalongPacificslopeintoCentralAmerica,includingGuatemala,Belize,ElSalvador,Honduras,WNicaragua,andNWCostaRica. E. u. sonoriensis Benson, 1947 — SW USA (S Arizona) and NW Mexico (Sonora).Published as part of Don E. Wilson & Russell A. Mittermeier, 2019, Molossidae, pp. 598-672 in Handbook of the Mammals of the World – Volume 9 Bats, Barcelona :Lynx Edicions on page 633, DOI: 10.5281/zenodo.641827