Produced by Chris Curnow, Joseph Cooper and the Online Distributed Proofreading Team at https://www.pgdp.net A New Bat (Genus Myotis) From Mexico BY WALTER W. DALQUEST and E. RAYMOND HALL University of Kansas Publications Museum of Natural History Volume 1, No. 12, pp. 237-244 December 10, 1947 UNIVERSITY OF KANSAS LAWRENCE 1947 UNIVERSITY OF KANSAS PUBLICATIONS, MUSEUM OF NATURAL HISTORY Editors: E. Raymond Hall, Chairman, H. H. Lane, Edward H. Taylor Volume 1, No. 12, pp. 237-244 December 10, 1947 UNIVERSITY OF KANSAS Lawrence, Kansas PRINTED BY FERD VOILAND, JR., STATE PRINTER TOPEKA, KANSAS 1947 22-1402 A New Bat (Genus Myotis) From Mexico[1] By WALTER W. DALQUEST AND E. RAYMOND HALL While one of us (Dalquest) was in a dugout canoe that was being paddled up a small unnamed tributary of the Rio Coatzacoalcos, through dense jungle, he grasped a decayed and termite damaged tree-trunk projecting approximately three feet above the surface of the water to steady the canoe. At that instant two bats were detected in one of the many small holes in the trunk, which was eight to nine inches in diameter. It was a simple matter to enlarge the hole and extract the animals. Superficially they resembled silvery-haired bats (_Lasionycteris_) but their naked interfemoral membranes and other features suggested that they belonged to the genus _Myotis_. Subsequently, study in the laboratory showed this to be the fact and revealed also that they are of an heretofore unnamed species which may be known as: #Myotis argentatus#, new species _Type._--Male, adult, skin with skull, No. 19228, Mus. Nat. Hist., Univ. Kansas; 14 kilometers southwest of Coatzocoalcos, 100 feet elevation, Veracruz, Mexico; 2 February 1947; obtained by Walter W. Dalquest; original No. 7052. _Range._--Known only from the type locality.