Abstract
We clarified the taxonomic position of Pseudomonas perfectomarina ZoBell in the species Pseudomonas stutzeri. Both genotypic and phenotypic observations led us to conclude that this strain belongs to genomovar 2 of P. stutzeri, for which strain ATCC 17591 is the reference strain. The uncertainty about the motility of strain ZoBell was also clarified. We found that strain ZoBell is motile by means of one polarly inserted flagellum.