Name: Phocaeicola massiliensis (Fenner et al. 2005) García-López et al. 2020

Category: Species

Proposed as: comb. nov.

Basonym: Bacteroides massiliensis Fenner et al. 2005

Etymology: mas.si.li.en’sis. L. masc. adj. massiliensis, of Massilia, the ancient Greek and Roman name for Marseille, France, where the type strain was isolated

Gender: masculine

Type strain: B 84634; CCUG 48901; CIP 107942; DSM 17679; JCM 13223

See detailed strain information at

Conduct genome-based taxonomy at

16S rRNA gene: AB510703 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

• Synonyms:

  • Name	Kind
    Bacteroides massiliensis Fenner et al. 2005	homotypic synonym, validly published under the ICNP
    "Candidatus Bacteroides massiliensis" corrig. Drancourt et al. 2004	homotypic synonym, not validly published
    "Candidatus Bacteroides massiliae" Drancourt et al. 2004	homotypic synonym, inaccurate spelling

• Notes:
  • 😷 The taxon name shown here has no risk group assigned, but is the homotypic synonym of Bacteroides massiliensis Fenner 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 2 times in PubMed until 2024-03-27.
  • 🧍 The genome of the type strain was sequenced as part of the GEBA (Genomic Encyclopedia of Bacteria and Archaea) project. Publication: Mukherjee S, Seshadri R, Varghese NJ, Eloe-Fadrosh EA, Meier-Kolthoff JP, Goker M, Coates RC, Hadjithomas M, Pavlopoulos GA, Paez-Espino D, et al. 1,003 reference genomes of bacterial and archaeal isolates expand coverage of the tree of life. Nat Biotechnol 2017; 35:676-683.

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: 7836