Methanospirillum hungatii Ferry et al., 1974 Dataset Prokaryotic Nomenclature Up-to-Date (PNU) Rank SPECIES Published in Int. J. Syst. Bacteriol. 30::318 Classification genus Methanospirillum species Methanospirillum hungatei Name Homonyms Methanospirillum hungatii Ferry et al., 1974