| Cross Index | Peptostreptococcus | 
| SuperSet | Prokaryote, Eubacteria Gram Positive Cocci | 
| Compare | aerobes: Deinobacter grandis Deinococcus,
        Marinococcus, Micrococcus,
        Planococcus , Salinicoccus roseus facultative anaerobes: Aerococcus viridans, Enterococcus, Gemella haemolysans, Lactococcus Leuconostoc, Melissococcus pluton, Pediococcus, Saccharococcus thermophilus, Staphylococcus, Stomatococcus mucilaginsos, Streptococcus, Trichococcus flocculiformis, Vagococcus anaerobes Coprococcus, Peptococcus niger , Peptostreptococcus, Ruminococcus, Sarcina Catalase positive:Deinococcus, Micrococcus, Planococcus, Staphylococcus,, Stomatococcus mucilaginsosus | 
| Contrast | Micrococcaceae are not a coherent group. Micrococcus is closely related to Arthrobacter , Planococcus is related to Bacilluss, while the radioresistant cocci called Deinococcus have atypical Gram positive cell walls | 
| Subset | 
| Morphology | Peptostreptococcus | 
| CELLULAR | 
| Staining | Gram-positive | 
| Morphology | cocci form pairs, chains or tetrads. | 
| Motility | |
| Specialized structures | 
| Division | 
| COLONIAL | 
| Solid surface | 
| Liquid | 
| Growth Parameters | Peptostreptococcus | 
| PHYSIOLOGICAL | 
| Tropism | |
| Oxygen | strictly anaerobic | 
| pH | |
| Temperature | |
| Requirements | |
| Products | peptone and amino acids to acetic acid, often with isobutyric, butyric, isovaleric and isocaproic acids | 
| Enzymes | catalase negative or have a pseudocatalase rection | 
| Unique features | 
| ENVIRONMENTAL | 
| Habitat | Most described species are part of the normal flora of humans and some have been detected in other animals | 
| Lifestyle | |
| Pathogenicity | 
| Distribution | 
| Genome | Peptostreptococcus | 
| G+C Mol % | 27-35 | 
| P.productus with 44-45 %. | 
| Reference | Peptostreptococcus | 
| First citation | Kluyver A.J. and C.B. van Niel (1936)Prospects for a natural classification of bacteria Zentralbl. Bakteriol. Parasitenkd. Infektionskr. Hyg. Abt. II 123:683- | 
| The Prokaryotes | p | 
| Bergey's Systematatic | p 1083 L.V. Holdeman Moore, J.L. Johnson and W.E. C. Moore | 
| Bergey's Determinative | p 530 | 
| References |