| Species | RefIntense Num | Refseq Num | Source |
|---|---|---|---|
| Corynebacterium tuberculostearicum | 1 | 9 | HMP |
| Corynebacterium urealyticum | 1 | 11 | HMP |
| Coxiella burnetii | 2 | 79 | HMP |
| Criibacterium bergeronii | 1 | 2 | MGYG |
| Croceibacter atlanticus | 1 | 2 | HMP |
| Crocosphaera chwakensis | 1 | 1 | HMP |
| Crocosphaera subtropica | 1 | 1 | HMP |
| Crocosphaera watsonii | 1 | 6 | HMP |
| Cronobacter malonaticus | 1 | 56 | MGYG |
| Cronobacter sakazakii | 2 | 450 | HMP/MGYG |