| Species | RefIntense Num | Refseq Num | Source |
|---|---|---|---|
| Bifidobacterium gallicum | 2 | 4 | HMP/MGYG |
| Bifidobacterium longum | 5 | 550 | HMP/MGYG |
| Bifidobacterium pseudocatenulatum | 2 | 133 | HMP/MGYG |
| Bifidobacterium pseudolongum | 1 | 95 | MGYG |
| Bifidobacterium pullorum | 2 | 14 | MGYG |
| Bifidobacterium ruminantium | 1 | 5 | MGYG |
| Bifidobacterium scardovii | 1 | 5 | MGYG |
| Bifidobacterium thermacidophilum | 1 | 3 | MGYG |
| Bilophila wadsworthia | 1 | 5 | MGYG |
| Bittarella massiliensis | 1 | 7 | MGYG |