is a species of the class Gammaproteobacteria in the family Enterobacteriaceae and order Enterobacteriales.
Citrobacter amalonaticus
Citrobacter braakii
Citrobacter farmeri
Citrobacter freundii
Citrobacter gillenii
Citrobacter koseri
Citrobacter murliniae
Citrobacter rodentium
Citrobacter sedlakii
Citrobacter werkmanii
Citrobacter youngae