Produced by Chris Curnow, Joseph Cooper, Josephine Paolucci and the Online Distributed Proofreading Team at https://www.pgdp.net. Pipistrellus cinnamomeus Miller 1902 Referred to the Genus Myotis BY E. RAYMOND HALL and WALTER W. DALQUEST University of Kansas Publications Museum of Natural History Volume 1, No. 25, pp. 581-590, 5 figures in text January 20, 1950 University of Kansas LAWRENCE 1950 UNIVERSITY OF KANSAS PUBLICATIONS, MUSEUM OF NATURAL HISTORY Editors: E. Raymond Hall, Chairman, Edward H. Taylor, A. Byron Leonard, Robert W. Wilson Volume 1, No. 25, pp. 581-590, 5 figures in text January 20, 1950 UNIVERSITY OF KANSAS Lawrence, Kansas PRINTED BY FERD VOILAND. JR., STATE PRINTER TOPEKA, KANSAS 1950 23-1545 [Transcriber's Note: Words surrounded by tildes, like ~this~ signifies words in bold. Words surrounded by underscores, like _this_, signifies words in italics. Male symbol is shown as [M] and female symbol is [F].] Pipistrellus cinnamomeus Miller 1902 Referred to the Genus Myotis By E. RAYMOND HALL AND WALTER W. DALQUEST Miller (Proc. Acad. Nat. Sci. Philadelphia, 1902, p. 390, September 3,1902) based the name _Pipistrellus cinnamomeus_ on a skin and skull of a vespertilionid bat obtained on May 4, 1900, at Montecristo, Tabasco, Mexico, by E. W. Nelson and E. A. Goldman. A single specimen was available to Miller when he proposed the name _P. cinnamomeus_. Dalquest and Hall (Jour. Mamm., 29:180, May 14, 1948) reported three additional specimens collected in 1946 by W. W. Dalquest on the Rio Blanco, twenty kilometers west-northwest of Piedras Negras, Veracruz, Mexico. No other published information concerning this species is known to us, although the name has, of course, appeared in regional lists, for example in the "List of North American Recent Mammals, 1923" (Bull. U. S. National Museum, 128:75, April 29, 1924) by Gerrit S. Miller, Jr. Additional specimens, nevertheless, are known. Two collected on April 18 and 20, 1903, at Papayo, Guerrero, by Nelson and Goldman, are in the Biological Surveys Collection in the United States National Museum. A skin, probably of this species, for which the skull cannot now be found, was taken on October 27, 1904, at Esquinapa, Sinaloa, by J. H. Batty and is in the American Museum of Natural History. This is the skin referred by Miller and Allen (Bull. U. S. Nat. Mus., 144:100, May 25, 1928) to _Myotis occultus_. Three additional specimens, each a skin with skull, were collected twenty kilometers east-northeast of Jesus Carranza, at 200 feet elevation, Veracruz, by Walter W. Dalquest, two on April 13, 1949, and one on May 16 of the same year. These are in the Museum of Natural History of the University of Kansas, as also are the three previously reported by Dalquest and Hall (_loc. cit._). A total of ten specimens, from five localities, all in Mexico, thus is accounted for.