| Species | RefIntense Num | Refseq Num | Source |
|---|---|---|---|
| Mesomycoplasma conjunctivae | 1 | 1 | HMP |
| Mesomycoplasma hyopneumoniae | 1 | 25 | HMP |
| Mesomycoplasma mobile | 1 | 1 | HMP |
| Mesoplasma florum | 1 | 12 | HMP |
| Mesorhizobium japonicum | 1 | 12 | HMP |
| Mesorhizobium opportunistum | 1 | 2 | HMP |
| Metamycoplasma arthritidis | 1 | 2 | HMP |
| Metamycoplasma hominis | 2 | 55 | HMP/MGYG |
| Methanobrevibacter oralis | 1 | 5 | MGYG |
| Methanobrevibacter smithii | 2 | 33 | MGYG |