| citrobacter europaeus | species | | | species | 1914243 |
| citrobacter freundii | species | bacteria | bacteria | species | 546 |
| enterobacter cancerogenus | species | bacteria | bacteria | species | 69218 |
| enterobacter cloacae | species | bacteria | bacteria | species | 550 |
| enterobacter hormaechei | species | bacteria | bacteria | species | 158836 |
| enterobacter sichuanensis | species | | | species | 2071710 |
| klebsiella granulomatis | species | bacteria | bacteria | species | 39824 |
| klebsiella oxytoca | species | bacteria | bacteria | species | 571 |
| klebsiella pneumoniae | species | bacteria | bacteria | species | 573 |
| klebsiella quasivariicola | species | | | species | 2026240 |