Catalog of Type Specimens of Recent Mammals: Orders Didelphimorphia through Chiroptera (excluding Rodentia) in the National Museum of Natural History, Smithsonian Institution FisherRobert D. LudwigCraig A. 2019 The type collection of Recent Mammals in the Division of Mammals, National Museum of Natural History, Smithsonian Institution, contains 821 specimens bearing names of 810 species-group taxa of Didelphimorphia through Chiroptera, excluding Rodentia, as of June 2014. This catalog presents an annotated list of these holdings comprising 789 holotypes, 26 lectotypes, 11 syntypes (22 specimens), and 4 neotypes. Included are several specimens that should be in the collection but cannot be found or are now known to be in other collections. One hundred and twenty-eight of the names are new since the last type catalog covering these orders, Arthur J. Poole and Viola S. Schantz’s 1942 Catalog of the Type Specimens of Mammals in the United States National Museum, Incuding the Biological Surveys Collections (Bulletin of the United States National Museum, 178). Five specimens reported therein were subsequently sent to the National Museum’s Paleobiology Department collection and are mentioned only briefly in this work. They are Acratoenus? comes Miller, 1929, Paraconus serus Miller, 1929, Nesophontes hypomicrus Miller, 1929, Nesophontes paramicrus Miller, 1929, and Nesophontes zamicrus Miller, 1929. Orders and families are arranged systematically following D. E. Wilson and D. M. Reeder’s 2005 Mammal Species of the World: A Taxonomic and Geographic Reference,volume 1, third edition; within families, currently recognized genera are arranged alphabetically; within each currently recognized genus, species and subspecies accounts are arranged alphabetically by original published name. Information in each account includes original name and abbreviated citation thereto, current name if other than original, citation for first use of current name combination for the taxon (or new name combination if used herein for the first time), type designation, U.S. National Museum catalog number(s), preparation, age and sex, date of collection and collector, original collector number, type locality, and remarks as appropriate. Digital photographs of each specimen will serve as a condition report and will be attached to each electronic specimen record.