| Reported in | Status | Registered by | ||
|---|---|---|---|---|
| Mycoplasma phocimorsus | Unknown | Valid (ICNP) | Excubia bot over 2 years ago | |
| Mycobacterium kiyosense | Unknown | Valid (ICNP) | Excubia bot over 2 years ago | |
| Muricauda yonaguniensis | Unknown | Valid (ICNP) | Excubia bot over 2 years ago | |
| Muricauda symbiotica | Unknown | Valid (ICNP) | Excubia bot over 2 years ago | |
| Muricauda okinawensis | Unknown | Valid (ICNP) | Excubia bot over 2 years ago | |
| Muricauda myxillae | Unknown | Valid (ICNP) | Excubia bot over 2 years ago | |
| Muricauda meishanensis | Unknown | Valid (ICNP) | Excubia bot over 2 years ago | |
| Muricaecibacterium | Unknown | Valid (ICNP) | Excubia bot over 2 years ago | |
| Muricaecibacterium torontonense T | Unknown | Valid (ICNP) | Excubia bot over 2 years ago | |
| Mucilaginibacter aquariorum | Unknown | Valid (ICNP) | Excubia bot over 2 years ago | |
| Moraxella nasibovis | Unknown | Valid (ICNP) | Excubia bot over 2 years ago | |
| Mokoshia | Unknown | Valid (ICNP) | Excubia bot over 2 years ago | |
| Mokoshia violaceinigra | Unknown | Valid (ICNP) | Excubia bot over 2 years ago | |
| Mokoshia soli | Unknown | Valid (ICNP) | Excubia bot over 2 years ago | |
| Mokoshia rubra | Unknown | Valid (ICNP) | Excubia bot over 2 years ago | |
| Mokoshia psychrophila | Unknown | Valid (ICNP) | Excubia bot over 2 years ago | |
| Mokoshia polaris | Unknown | Valid (ICNP) | Excubia bot over 2 years ago | |
| Mokoshia mucilaginosa | Unknown | Valid (ICNP) | Excubia bot over 2 years ago | |
| Mokoshia glaciei | Unknown | Valid (ICNP) | Excubia bot over 2 years ago | |
| Mokoshia frigida | Unknown | Valid (ICNP) | Excubia bot over 2 years ago | |
| Mokoshia eurypsychrophila T | Unknown | Valid (ICNP) | Excubia bot over 2 years ago | |
| Mokoshia cavernae | Unknown | Valid (ICNP) | Excubia bot over 2 years ago | |
| Mokoshia atriviolacea | Unknown | Valid (ICNP) | Excubia bot over 2 years ago | |
| Mokoshia aquatica | Unknown | Valid (ICNP) | Excubia bot over 2 years ago | |
| Mokoshia antarctica | Unknown | Valid (ICNP) | Excubia bot over 2 years ago | |
| Microvirga terricola | Unknown | Valid (ICNP) | Excubia bot over 2 years ago | |
| Microvirga solisilvae | Unknown | Valid (ICNP) | Excubia bot over 2 years ago | |
| Micromonospora tarensis | Unknown | Valid (ICNP) | Excubia bot over 2 years ago | |
| Micromonospora parastrephiae | Unknown | Valid (ICNP) | Excubia bot over 2 years ago | |
| Microcella pacifica | Unknown | Valid (ICNP) | Excubia bot over 2 years ago |