Group Listing Aerobes: GNC Aerobes: GNR - Enterobacteriaceae Citrobacter freundii Citrobacter koseri Edwardsiella tarda Enterobacter aerogenes Enterobacter cloacae Enterobacter sakazakii Enterobacteriaceae - Gram stains Escherichia coli Escherichia coli O157:H7 Hafnia alvei Klebsiella oxytoca Klebsiella pneumoniae Morganella morganii Proteus mirabilis Proteus vulgaris Providencia alcalifaciens Providencia rettgeri Providencia stuartii Salmonella species Serratia marcescens Shigella species Colonial morphology BA MAC HEK XLD Yersinia enterocolitica Aerobes: GNR - Haemophilus, HACEK and others Aerobes: GNR - Nonfermenters Aerobes: GPC Aerobes: GPR Anaerobes: GNC Anaerobes: GNR Anaerobes: GPC Anaerobes: GPR Anaerobes: GPR, Spore-forming Mycobacteria