Streptococcus difficilis Eldar et al., 1995 Dataset Prokaryotic Nomenclature Up-to-Date (PNU) Rank SPECIES Published in Int. J. Syst. Bacteriol. 45::197 Classification genus Streptococcus species Streptococcus agalactiae Name Homonyms Streptococcus difficilis Eldar et al., 1995