S. aureus (/ ˌstæfɪləˈkɒkəs ˈɔːriəs, - loʊ -/, Greek σταφυλόκοκκος, "grape-cluster berry", Latin aureus, "golden") is a facultative anaerobic, Gram-positive coccal (round) bacterium also known as "golden staph" and "oro staphira".

Staphylococcus genus (Staph): Gram-positive beta-hemolytic bacteria; occur singly, in pairs, short chains, and clusters (from Greek staphylé, "bunch of grapes").

Staphylococcus saprophyticus is a Gram-positive, coagulase-negative coccus that is an important part of the group of microorganisms causing urinary tract infections (UTIs), particularly in young sexually active females.

current name Staphylococcus sp. NCBI BLAST name: firmicutes

Staphylococcus spp., are Gram-positive bacteria, some of which cause suppurative disease processes in animals and humans. Of the over 40 species recognized at present (Table 1) 9, 15 only four (Staphylococcus aureus, S. epidermidis, S. pseudintermedius and S. hyicus) are significant in livestock.