| Phylum | Class | Order | Family | Genus | Species | RefIntense Num | Refseq Num | Source |
|---|---|---|---|---|---|---|---|---|
| Proteobacteria | Gammaproteobacteria | Enterobacterales | Enterobacteriaceae | Citrobacter | Citrobacter braakii | 1 | 101 | UHGG |
| Proteobacteria | Gammaproteobacteria | Enterobacterales | Enterobacteriaceae | Citrobacter | Citrobacter europaeus | 1 | 10 | UHGG |
| Proteobacteria | Gammaproteobacteria | Enterobacterales | Enterobacteriaceae | Citrobacter | Citrobacter farmeri | 1 | 16 | UHGG |
| Proteobacteria | Gammaproteobacteria | Enterobacterales | Enterobacteriaceae | Citrobacter | Citrobacter freundii | 1 | 506 | UHGG |
| Proteobacteria | Gammaproteobacteria | Enterobacterales | Enterobacteriaceae | Citrobacter | Citrobacter koseri | 2 | 111 | HMP/UHGG |
| Proteobacteria | Gammaproteobacteria | Enterobacterales | Enterobacteriaceae | Citrobacter | Citrobacter pasteurii | 1 | 5 | UHGG |
| Proteobacteria | Gammaproteobacteria | Enterobacterales | Enterobacteriaceae | Citrobacter | Citrobacter portucalensis | 3 | 85 | HMP/UHGG |
| Proteobacteria | Gammaproteobacteria | Enterobacterales | Enterobacteriaceae | Citrobacter | Citrobacter rodentium | 1 | 7 | HMP |
| Proteobacteria | Gammaproteobacteria | Enterobacterales | Enterobacteriaceae | Citrobacter | Citrobacter sedlakii | 1 | 8 | UHGG |
| Proteobacteria | Gammaproteobacteria | Enterobacterales | Enterobacteriaceae | Citrobacter | Citrobacter werkmanii | 2 | 46 | UHGG |