Ruminococcus callidus Holdeman & Moore, 1974 Dataset Prokaryotic Nomenclature Up-to-Date (PNU) Rank SPECIES Published in Int. J. Syst. Bacteriol. 30::359 Classification genus Ruminococcus species Ruminococcus callidus Name Homonyms Ruminococcus callidus Holdeman & Moore, 1974