| Reported in | Status | Registered by | ||
|---|---|---|---|---|
| Mesorhizobium ventifaucium | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Mesorhizobium neociceri | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Mesorhizobium japonicum | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Mesorhizobium escarrei | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Mesorhizobium comanense | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Mesoplasma pleciae | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Mesophilobacter | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Mesophilobacter marinus T | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Mesonia maritimus | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Mesomycoplasma | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Mesomycoplasma ovipneumoniae | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Mesomycoplasma neurolyticum | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Mesomycoplasma molaris | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Mesomycoplasma molare | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Mesomycoplasma moatsii | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Mesomycoplasma lagogenitalium | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Mesomycoplasma hyorhinis | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Mesomycoplasma hyopneumoniae T | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Mesomycoplasma flocculare | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Mesomycoplasma dispar | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Mesomycoplasma conjunctivae | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Mesomycoplasma bovoculi | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Mesoflavibacter sabulilitoris | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Mesoflavibacter aestuarii | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Mesobacterium | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Mesobacterium pallidum T | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Mergibacter | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Mergibacter septicus T | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Merdimmobilis | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Merdimmobilis hominis T | Unknown | Valid (ICNP) | Excubia bot over 3 years ago |