Proteus

What you should know:

Proteus are Gram-negative rod-shaped Enterobacteria common to soils and the digestive tracts of animals. Most strains are motile by peritrichous flagella and exhibit swarming behavior on agar plates.

Classification: 

Proteobacteria (Volume 2)

Type species

Proteus vulgaris

Facultative anaerobe, oxidase-negative, catalase-positive, nitrate reduction-positive

Metabolism: respiratory and fermentative, 

Hydrolysis: amylase-negative, casease-negative, DNAse-negative, gelatinase-positive

Other: H₂S-positive, indole-negative, citrate-positive, urease-positive

Structure: motile