(Uploaded by Plazi for the Bat Literature Project) An Annotated Catalog of Primary Types of Siphonaptera in the National Museum of Natural History, Smithsonian Institution. Smithsonian Contributions to Zoology, number 560, 86 pages, 1995.—Annotated accounts for the 417 siphonapteran primary types in the collection of the National Museum of Natural History, Smithsonian Institution, are presented. Each account includes the name, author, date of description, genus, computer reference number, citation, collection locality, host species, date of collection, and collector, if known. The kind of primary type and its sex are designated, accompanied by the USNM type number. The remarks section includes the current status of the name and other pertinent information. Of these accounts, 63 names are junior synonyms, one of which is synonymized here. Of the remaining 354 valid taxa, nine primary types are in the Natural History Museum, London, although for various reasons they warrant further discussion. Twenty-seven lectotypes are designated. Five appendices are included. They are an alphabetical index of host/parasite names by species; a list ofjunior synonyms and their equivalents; a list of type localities by country and the species described from them; an alphabetical list of the valid genera, species, and subspecies represented by primary types in the collection, including their USNM numbers; and the supraspecific classification of the Siphonaptera.