Name: Phocaeicola plebeius (Kitahara et al. 2005) García-López et al. 2020

Category: Species

Proposed as: comb. nov.

Basonym: Bacteroides plebeius Kitahara et al. 2005

Etymology: ple.be’ius. L. masc. adj. plebeius, common, of low class

Pronunciation, gender: ple-BE-ius, masculine

Type strain: DSM 17135; JCM 12973; M12

See detailed strain information at

Conduct genome-based taxonomy at

16S rRNA gene: AB200217 Analyse FASTA

Effective publication: Garcia-Lopez M, Meier-Kolthoff JP, Tindall BJ, Gronow S, Woyke T, Kyrpides NC, Hahnke RL, Goker M. Analysis of 1,000 Type-Strain Genomes Improves Taxonomic Classification of Bacteroidetes. Front Microbiol 2019; 10:2083.

IJSEM list: Oren A, Garrity GM. Validation list no. 193. List of new names and new combinations previously effectively, but not validly, published. Int J Syst Evol Microbiol 2020; 70:2960-2966.

Nomenclatural status: validly published under the ICNP

Taxonomic status: correct name (and explicitly recommended for medical use)

• Synonyms:

  • Name	Kind
    Bacteroides plebeius Kitahara et al. 2005	homotypic synonym, validly published under the ICNP

• Notes:
  • 🧬 The phylogenomic assignment score of this taxon is 0.02781 (N = 1).
  • 😷 The taxon name shown here has no risk group assigned, but is the homotypic synonym of Bacteroides plebeius Kitahara et al. 2005, which has a risk group (Swiss Confederation) above 1. This may require that the name shown here is not treated as the correct name for practical purposes.
  • 🎓 Name mentioned 7 times in PubMed until 2025-06-04.
  • 🫡 This name is on the List of Recommended Names for bacteria of medical importance (LoRN) as the name to be applied to this species. The name is on LoRN because of the recorded risk group of the species itself. This name is not taxonomically suspended any more in favour of Bacteroides plebeius Kitahara et al. 2005. Publication: Kitahara M, Sakamoto M, Ike M, Sakata S, Benno Y. Bacteroides plebeius sp. nov. and Bacteroides coprocola sp. nov., isolated from human faeces. Int J Syst Evol Microbiol 2005; 55:2143-2147. Euzeby JP. Notification list. Notification that new names and new combinations have appeared in volume 55, part 5 of the IJSEM. Int J Syst Evol Microbiol 2006; 56:7-9.

Parent taxon: Phocaeicola Al Masalma et al. 2009

Assigned by: Garcia-Lopez M, Meier-Kolthoff JP, Tindall BJ, Gronow S, Woyke T, Kyrpides NC, Hahnke RL, Goker M. Analysis of 1,000 Type-Strain Genomes Improves Taxonomic Classification of Bacteroidetes. Front Microbiol 2019; 10:2083.

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Record number: 7838