| Reported in | Status | Registered by | ||
|---|---|---|---|---|
| Petrobacter | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Petrobacter succinatimandens T | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Peteryoungia | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Peteryoungia ipomoeae T | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Peteryoungia aggregata | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Peterkaempfera | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Peterkaempfera griseoplana T | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Peterkaempfera bronchialis | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Persicivirga | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Persicivirga xylanidelens T | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Persicivirga ulvanivorans | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Persicivirga dokdonensis | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Persicimonas | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Persicimonas caeni T | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Perlabentimonas | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Perlabentimonas gracilis T | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Periweissella | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Periweissella ghanensis T | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Periweissella fabaria | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Periweissella fabalis | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Periweissella cryptocerci | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Periweissella beninensis | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Peribacillus tepidiphilus | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Peribacillus frigoritolerans | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Peptostreptococcus vaginalis | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Peptostreptococcus tetradius | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Peptostreptococcus productus | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Peptostreptococcus prevotii | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Peptostreptococcus parvulus | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Peptostreptococcus octavius | Unknown | Valid (ICNP) | Excubia bot about 3 years ago |