the following information is not yet verified
Taxonomy
Family: Moraxellaceae

Natural habitats
Part of the normal flora of the upper respiratory tract, and sometimes colonize the female genitals.

Clinical significance
M. catarrhalis is an exclusively human pathogen and is common cause of otitis media in infants and children and they are an important cause of lower respiratory tract infections, particularly in adults with chronic obstructive pulmonary disease (COPD).
They can cause a variety of severe infections, including pneumonia, endocarditis, septicemia and meningitis,

the following information is not yet verified
Gram negative diplococci

They occur intra- or extracellularly

Obligate aerobic

BA: colonies are 1-3 mm after 24 hours, gray to white, opaque, and smooth

When they are pushed by a loop (öse), they remain intact and glide over the agar as a “hockey puck”

McConkey: no growth

BBAØ: no growth

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