| Genus | Species Num | Strain Num | SOURCE |
|---|---|---|---|
| Moritella | 1 | 1 | HMP |
| Murdochiella | 2 | 2 | MGYG |
| Muribaculum | 1 | 1 | MGYG |
| Murimonas | 1 | 1 | MGYG |
| Mycobacterium | 8 | 17 | HMP/MGYG |
| Mycobacteroides | 1 | 1 | HMP |
| Mycolicibacterium | 3 | 3 | HMP |
| Mycoplasma | 3 | 3 | HMP |
| Mycoplasmoides | 2 | 3 | HMP |
| Mycoplasmopsis | 4 | 5 | HMP |