| Reported in | Status | Registered by | ||
|---|---|---|---|---|
| Bifidobacterium aerophilum | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Bifidobacterium aemilianum | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Bifidobacterium adolescentis | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Bifidobacterium actinocoloniiforme | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Bifidobacterium | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Bibersteinia trehalosi T | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Bibersteinia | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Bhargavaea ullalensis | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Bhargavaea ginsengi | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Bhargavaea cecembensis T | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Bhargavaea beijingensis | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Bhargavaea | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Caryophanaceae | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Beutenbergia cavernae T | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Beutenbergia | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Beutenbergiaceae | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Bernardetia litoralis T | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Bernardetia | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Bernardetiaceae | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Bermanella marisrubri T | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Bermanella | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Bergeyella zoohelcum T | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Bergeyella porcorum | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Bergeyella | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Bergeriella denitrificans T | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Bergeriella | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Belnapia soli | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Belnapia rosea | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Belnapia moabensis T | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Belnapia | Unknown | Valid (ICNP) | Excubia bot over 4 years ago |