| Reported in | Status | Registered by | ||
|---|---|---|---|---|
| Maritimibacter dapengensis | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Maritalea mediterranea | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Maripseudobacter | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Maripseudobacter aurantiacus T | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Marinomonas vulgaris | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Marinomonas vaga | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Marinomonas lutimaris | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Marinomonas basaltis | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Marinomonas aquamarina | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Marinococcus hispanicus | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Marinococcus albus | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Marinobacterium ramblicola | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Marinobacterium georgiense T | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Marinobacter orientalis | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Marinobacter mangrovi | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Marinobacter hydrocarbonoclasticus T | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Marinobacter aquaeolei | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Marinobacter alexandrii | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Mariniplasma | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Mariniplasma anaerobium T | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Marinilongibacter | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Marinilongibacter aquaticus T | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Marinilactibacillus kalidii | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Marinilabilia agarovorans | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Marinifilum caeruleilacunae | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Marinicola | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Marinicola seohaensis T | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Marinicaulis | ||||
| Marinicaulis aureum | Unknown | Valid (ICNP) | Excubia bot over 3 years ago | |
| Marinibacillus | Unknown | Valid (ICNP) | Excubia bot over 3 years ago |