Name: Proteus cibarius Hyun et al. 2016

Category: Species

Proposed as: sp. nov.

Etymology: ci.ba’ri.us. L. masc. adj. cibarius, pertaining to food

Pronunciation: ki-BA-ri-us

Type strain: JCM 30699; JS9; KACC 18404

See detailed strain information at

Conduct genome-based taxonomy at

16S rRNA gene: FJ796245 Analyse FASTA

Valid publication: Hyun DW, Jung MJ, Kim MS, Shin NR, Kim PS, Whon TW, Bae JW. Proteus cibarius sp. nov., a swarming bacterium from Jeotgal, a traditional Korean fermented seafood, and emended description of the genus Proteus. Int J Syst Evol Microbiol 2016; 66:2158-2164.

IJSEM list: Oren A, Garrity GM. Notification list. Notification that new names and new combinations have appeared in volume 66, part 6 of the IJSEM. Int J Syst Evol Microbiol 2016; 66:3765-3767.

Nomenclatural status: validly published under the ICNP

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

Correct name: Proteus terrae subsp. cibarius (Hyun et al. 2016) Behrendt et al. 2021

Risk group: 1

• Synonyms:

  • Name	Kind
    Proteus terrae subsp. cibarius (Hyun et al. 2016) Behrendt et al. 2021	homotypic synonym, validly published under the ICNP, distinct rank

• Notes:
  • 😢 The terminology used by the authors is in line with many other taxonomic studies and does not negatively affect their main results; some improvements may nevertheless be possible. Contrasting the term "chemotaxonomic" with "phenotypic" is not recommended. Whether taxa can have "members" is debatable. See the LPSN phylogeny page for details. Publication: Göker M. What can genome analysis offer for bacteria? In: Bridge P, Smith D, Stackebrandt E (eds), Trends in the systematics of bacteria and fungi, CAB International, Wallingford, 2021, p. 255-281.
  • ❗ Proteus cibarius 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 Proteus.
  • 😷 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 11 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 the genus.

Parent taxon: Proteus Hauser 1885 (Approved Lists 1980)

Assigned by: Hyun DW, Jung MJ, Kim MS, Shin NR, Kim PS, Whon TW, Bae JW. Proteus cibarius sp. nov., a swarming bacterium from Jeotgal, a traditional Korean fermented seafood, and emended description of the genus Proteus. Int J Syst Evol Microbiol 2016; 66:2158-2164.

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Record number: 794180