| bifidobacterium pseudolongum subsp. globosum | subspecies | bacteria | bacteria | subspecies | 1690 |
| bifidobacterium tsurumiense | species | bacteria | bacteria | species | 356829 |
| bifidobacterium tsurumiense dsm 17777 | no rank | | | no rank | 1121112 |
| uncultured bifidobacterium sp. | no rank | bacteria | environmental samples | species | 165187 |