How to differentiate staphylococci and micrococci
Micrococci are gram-positive cocci which can be mistaken for S.aureus in culture but are larger and mostly in pairs, tetrads or irregular clusters. Micrococci is catalase and modified oxidase positive and oxidative in Hugh and Leifson's oxidation-fermentation test. Ref: Textbook of Ananthanarayan and paniker's; 10th Edition; Pg:209
Catalase test
Hugh and Leifson's oxidation-fermentation test
Gram staining
AFS
Bacteriology