Introducing the concept of the isonym into the International Code of Nomenclature of Prokaryotes

There are various ways in which the names of prokaryotes can be duplicated in the literature. An examination of the various ways that this may happen under the International Code of Nomenclature of Prokaryotes indicates that a concept is missing, namely the one that refers to the same name based on the same nomenclatural type published in the International Journal of Systematic Bacteriology/International Journal of Systematic and Evolutionary Microbiology, by the same or different authors in different manuscripts or in the Validation Lists. To cater for such instances it would be appropriate to introduce the concept of the isonym and to regulate how they are to be dealt with.