| A | B |
| Actinomyces isrealii | Molar tooth colony and bread crumb- like growth in broth |
| Actinomyces isrealii | sulfur granules |
| B. ureolyticus | Bacteroides species that pits the agar |
| Bacteroides fragilis gp | most common anaerobe |
| Bacteroides fragilis gp | grows on KVLB and BBE |
| Bacteroides fragilis gp | esculin pos, vancomycin and kanamycin and bile resistant |
| Clostridium botulinum | causes botulism |
| Clostridium botulinum | Lipase pos |
| Clostridium botulinum | most potent toxin, must find toxin in blood of patient |
| Clostridium difficile | Fluoresces yellow- green, horse stable odor |
| Clostridium difficile | causes psuedomembranous colitis |
| Clostridium difficile | must identify toxin in stool |
| Clostridium difficile | grows on CCFA |
| Clostridium perfringens | causes gangrene |
| Clostridium perfringens | double zone of beta hemolysis |
| Clostridium perfringens | produces alpha toxin (lecithinase) |
| Clostridium perfringens | Nagler and reverse Camp pos |
| Clostridium tetani | terminal spore |
| Clostridium tetani | causes tetanus |
| Clostridium tetani | must identify tetanospasmin from organism |
| Fusobacterium nucleatum | spear shaped gnr |
| Fusobacterium nucleatum | GNR that produces butyric acid, kanamycin and bile sensitive |
| Fusobacterium nucleatum | organism that causes Vincent's angina and fluoresces chartreuse |
| Fusobacterium nucleatum | fluoresces charteuse and has ground glass colonies |
| Peptostreptococcus | catalase neg gram pos cocci with sharp odor |
| Peptostreptococcus anaerobius | susceptible to SPS |
| Prevotella melaninogenica gp and Porphyromonas | organisms that cause Vincent's angina and fluoresce red |
| Prevotella melaninogenica gp and Porphyromonas | GNR species that produce black pigment and fluoresce red |
| Veillonella | GNC that fluoresces red |
| Prevotella melaninogenica gp | gnr that will grow on KVLB but not BBE |
| Bilophila | gnr that shows fish- eye colony |
| Clostridium | sporeforming gpr |