| Reported in | Status | Registered by | ||
|---|---|---|---|---|
| Mycobacterium syngnathidarum | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Mycobacterium stomatepiae | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Mycobacterium stephanolepidis | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Mycobacterium sphagni | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Mycobacterium smegmatis | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Mycobacterium simiae | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Mycobacterium shottsii | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Mycobacterium shinjukuense | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Mycobacterium shimoidei | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Mycobacterium shigaense | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Mycobacterium sherrisii | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Mycobacterium setense | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Mycobacterium septicum | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Mycobacterium seoulense | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Mycobacterium senuense | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Mycobacterium senegalense | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Mycobacterium sediminis | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Mycobacterium scrofulaceum | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Mycobacterium saskatchewanense | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Mycobacterium sarraceniae | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Mycobacterium saopaulense | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Mycobacterium salmoniphilum | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Mycobacterium rutilum | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Mycobacterium rufum | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Mycobacterium riyadhense | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Mycobacterium rhodesiae | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Mycobacterium pyrenivorans | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Mycobacterium pulveris | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Mycobacterium psychrotolerans | Unknown | Valid (ICNP) | Excubia bot over 4 years ago | |
| Mycobacterium pseudoshottsii | Unknown | Valid (ICNP) | Excubia bot over 4 years ago |