An nomenclatorial index that gives a list of taxa with relevant taxonomic literature. Catalogues are prepared for particular regions (zoogeographic regions, countries), particular collections (museum collections or, more restrictive, type collections), or particular taxa (families, genera). The taxa are arranged in a convenient way (either alphabetically or systematically) and reference to the literature for each taxon is given, if necessary supplemented with reference to material in collections. Catalogues usually are prepared to provide a list of all relevant taxonomic literature and nomenclatorial issues pertaining to a taxon or the taxa in a particular collection. Example: Stone, A., et al., 1965. A Catalog of the Diptera of America Corth of Mexico, United States Department of Agriculture, Washington, D.C. Also compare with checklist.