Short plump Gram negative coccoid rods,

usually occur in pairs or short chains

Obligate Aerobic

BA: colonies are smooth, translucent to semi-opaque, small 0.5 mm after 24 hours of incubation, spreading growth and they may pit the agar (pitting)

McConkey: growth, non lactose fermenter

BBAØ: no growth

James Versalovic et al.(2011) Manual of Clinical Microbiology 10th Edition