Recent mammal collecting in Kentucky has resulted in the acquisition of a few specimens of some species whose distribution in the state is poorly known. In an effort to bring up to date the knowledge of these species in the state, the literature has been surveyed and data pertinent to the specimens appended. Credit is due to The Research Fund Committee of the University of Kentucky for financial assistance in the collection of certain of the specimens; Charles O. Handley of the United States National Museum for verifying my identification of the specimens of Corynorhinus and for other courtesies; and to many of my students for assistance in the field. Nomenclature of Corynorhinus follows that of Handley (Jour. Wash. Acad. Sei., 45(5): 147–149, 1955), wherein C. rafinesquii = C. macrotis , and C. townsendii = C. rafinesquii . Most of the specimens are deposited in the zoological collection of the University of Kentucky; a few are in the United States National Museum. Measurements are expressed in millimeters; averages are given first, followed by extremes in parentheses. …