| Species | RefIntense Num | Refseq Num | Source |
|---|---|---|---|
| Citrobacter braakii | 1 | 101 | MGYG |
| Citrobacter europaeus | 1 | 10 | MGYG |
| Citrobacter farmeri | 1 | 16 | MGYG |
| Citrobacter freundii | 1 | 506 | MGYG |
| Citrobacter koseri | 2 | 111 | HMP/MGYG |
| Citrobacter pasteurii | 1 | 5 | MGYG |
| Citrobacter portucalensis | 3 | 85 | HMP/MGYG |
| Citrobacter rodentium | 1 | 7 | HMP |
| Citrobacter sedlakii | 1 | 8 | MGYG |
| Citrobacter werkmanii | 2 | 46 | MGYG |