Species Xylanibacter rarus

Name: Xylanibacter rarus corrig. (Efimov et al. 2018) Hitch et al. 2023

Category, proposed as: species, comb. nov.

Basonym: Prevotella rara Efimov et al. 2018

Etymology: ra’rus. L. masc. adj. rarus, rare, uncommon

Pronunciation (Latin), gender: xy-la-ni-BAK-ter RA-rus, masculine

Type strain: 109; DSM 105141; VKM B-2992

See detailed strain information at

Conduct genome-based taxonomy at

16S rRNA gene: KX198132 Analyse FASTA

Effective publication: Hitch TCA, Bisdorf K, Afrizal A, Riedel T, Overmann J, Strowig T, Clavel T. A taxonomic note on the genus Prevotella: Description of four novel genera and emended description of the genera Hallella and Xylanibacter. Syst Appl Microbiol 2022; 45:126354. 🇩🇪

IJSEM list: Oren A, Göker M. Validation list no. 209. List of new names and new combinations previously effectively, but not validly, published. Int J Syst Evol Microbiol 2023; 73:5709.

Nomenclatural status: validly published under the ICNP

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

Correct name: Prevotella rara Efimov et al. 2018

Risk group: 1

• Synonyms:

  • Name	Kind
    Xylanibacter rara (Efimov et al. 2018) Hitch et al. 2023	other spelling of name, inaccurate spelling
    Prevotella rara Efimov et al. 2018	homotypic synonym, validly published under the ICNP

• Notes:
  • ❗ Xylanibacter rarus 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 Xylanibacter.
  • 😷 The risk group for Germany has been imported on 2026-08-13. 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 0 times in PubMed until 2026-06-11.
  • 🙅 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 the genus.

Parent taxon: Xylanibacter Ueki et al. 2006

Assigned by: Hitch TCA, Bisdorf K, Afrizal A, Riedel T, Overmann J, Strowig T, Clavel T. A taxonomic note on the genus Prevotella: Description of four novel genera and emended description of the genera Hallella and Xylanibacter. Syst Appl Microbiol 2022; 45:126354. 🇩🇪

Linking: To permanently link to this page, use https://doi.org/10.83108/rn.36166Copy to clipboardLink copied to clipboard

Record number: 36166