Name: Flexibacter elegans (ex Lewin 1969) Reichenbach 1989

Category: Species

Proposed as: sp. nov., nom. rev.

Etymology: e’le.gans. L. masc. adj. elegans, nice, elegant

Pronunciation (Latin), gender: … E-le-gans, masculine

Type strain: ATCC 23112; CIP 104801; DSM 3317; IFO 15055; JCM 21159; LMG 10750; NBRC 15055; NZ-1 Lewin

See detailed strain information at

Conduct genome-based taxonomy at

16S rRNA gene: AB078048 Analyse FASTA

Effective publication: Reichenbach H. Genus Flexibacter Soriano 1945, 92, AL emend. In: Staley JT, Bryant MP, Pfennig N, Holt JG (eds), Bergey's manual of systematic bacteriology, vol. 3., The Williams & Wilkins Co., Baltimore, 1989, p. 2061-2071. 🇩🇪

IJSEM list: Anonymous. Validation list no. 31. Validation of publication of new names and new combinations previously effectively published outside the IJSB. Int J Syst Bacteriol 1989; 39:495-497.

Nomenclatural status: validly published under the ICNP

Taxonomic status: synonym (and not recommended for medical use)

Correct name: Eisenibacter elegans (Reichenbach 1989 ex Lewin 1969) Hahnke et al. 2017

Risk group: 1

• Synonyms:

  • Name	Kind
    Eisenibacter elegans (Reichenbach 1989 ex Lewin 1969) Hahnke et al. 2017	homotypic synonym, validly published under the ICNP

• Notes:
  • ❗ Flexibacter elegans is the correct name instead if this species is regarded as a separate species (i.e., if its nomenclatural type is not assigned to another species whose name is validly published, legitimate and not rejected and has priority) within a separate genus Flexibacter.
  • 😷 The risk group for Canada has been imported on 2024-02-27. The full classification is: risk group = 1, note = "Security sensitive biological agent: No - Terrestrial animal pathogen under Canadian Food Inspection Agency authority: No". — The risk group for Swiss Confederation has been imported on 2024-02-01. The full classification is: risk group = 1. — The risk group for Germany has been imported on 2023-10-29. The full classification is: risk group = 1. — If in doubt, use the risk group given in the regulations for your country and, if these are not available, use the risk group given in the catalogue of the culture collection from which you have obtained or intend to obtain the strain.
  • 🎓 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 a synonym of the name to be applied to this species. The name is on LoRN because of the recorded risk group of other species in the genus.
  • 🧍 The genome of the type strain was sequenced as part of the GEBA (Genomic Encyclopedia of Bacteria and Archaea) project. Publication: Hahnke RL, Meier-Kolthoff JP, Garcia-Lopez M, Mukherjee S, Huntemann M, Ivanova NN, Woyke T, Kyrpides NC, Klenk HP, Goker M. Genome-Based Taxonomic Classification of Bacteroidetes. Front Microbiol 2016; 7:2003. 🇩🇪

Parent taxon: Flexibacter Soriano 1945 (Approved Lists 1980)

Assigned by: Reichenbach H. Genus Flexibacter Soriano 1945, 92, AL emend. In: Staley JT, Bryant MP, Pfennig N, Holt JG (eds), Bergey's manual of systematic bacteriology, vol. 3., The Williams & Wilkins Co., Baltimore, 1989, p. 2061-2071. 🇩🇪

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Record number: 776290