TABLE 1.

Changes in classification of genus Peptococcus and genus Peptostreptococcus from 1974 to 1997

Genus	Classification of:
	Rogosa, 1974 (225)	Skerman et al., 1980 (237)	Holdeman Moore et al., 1986 (135)	Ezaki et al., 1992 (84)	1997
Peptococcus	P. niger (T)a	P. niger	P. niger	P. niger	P. niger
	P. activus
	P. aerogenes
	P. anaerobius
	P. asaccharolyticus	P. asaccharolyticus
	P. constellatus
		P. glycinophilus
		P. indolicus
		P. magnus
		P. prevotii
		P. saccharolyticus
Peptostreptococcus	P. anaerobius (T)	P. anaerobius	P. anaerobius	P. anaerobius	P. anaerobius
			P. asaccharolyticus	P. asaccharolyticus	P. asaccharolyticus
				P. barnesae	P. barnesae
					‘P. harei’b
			P. heliotrinreducens	P. heliotrinreducens	P. heliotrinreducens
				P. hydrogenalis	P. hydrogenalis
			P. indolicus	P. indolicus	P. indolicus
					‘P. ivorii’b
					P. lacrimalis
					P. lactolyticus
	P. lanceolatus
			P. magnus	P. magnus	P. magnus
	P. micros	P. micros	P. micros	P. micros	P. micros
					‘P. octavius’b
	P. parvulus	P. parvulus
			P. prevotii	P. prevotii	P. prevotii
	P. productus	P. productus	P. productus	P. productus	P. productus
			P. tetradius	P. tetradius	P. tetradius
					P. vaginalis

^a(T) denotes the type species of the genus. 

^bRecently proposed species (188).