| Reported in | Status | Registered by | ||
|---|---|---|---|---|
| Bifidobacterium thermacidophilum subsp. thermacidophilum | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Bifidobacterium thermacidophilum subsp. porcinum | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Bifidobacterium suis | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Bifidobacterium stercoris | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Bifidobacterium simiiventris | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Bifidobacterium santillanense | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Bifidobacterium saguinibicoloris | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Bifidobacterium saeculare | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Bifidobacterium pseudolongum subsp. globosum | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Bifidobacterium pongonis | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Bifidobacterium polysaccharolyticum | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Bifidobacterium pluvialisilvae | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Bifidobacterium phasiani | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Bifidobacterium mizhiense | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Bifidobacterium miconisargentati | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Bifidobacterium miconis | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Bifidobacterium mellis | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Bifidobacterium lactis | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Bifidobacterium kashiwanohense | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Bifidobacterium inopinatum | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Bifidobacterium infantis | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Bifidobacterium gallinarum subsp. gallinarum | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Bifidobacterium denticolens | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Bifidobacterium coryneforme | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Bifidobacterium colobi | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Bifidobacterium choladohabitans | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Bifidobacterium apousia | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Bifidobacterium amazonense | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Bieblia | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Bieblia vinaykumarii | Unknown | Valid (ICNP) | Excubia bot over 3 years ago |