Name: Christensenella hongkongensis (Lau et al. 2014) Liu et al. 2021

Category: Species

Proposed as: comb. nov.

Basonym: Catabacter hongkongensis Lau et al. 2014

Etymology: hong.kong.en’sis. N.L. fem. adj. hongkongensis, pertaining to Hong Kong, SAR, PR China

Pronunciation (Latin), gender: k^hris-ten-se-NEL-la hon͡g-kon͡g-EN-sis, feminine

Type strain: CCUG 54229; DSM 18959; HKU16; JCM 17853

See detailed strain information at

Conduct genome-based taxonomy at

16S rRNA gene: AB671763 Analyse FASTA

Valid publication: Liu X, Sutter JL, de la Cuesta-Zuluaga J, Waters JL, Youngblut ND, Ley RE. Reclassification of Catabacter hongkongensis as Christensenella hongkongensis comb. nov. based on whole genome analysis. Int J Syst Evol Microbiol 2021; 71:4774. 🇩🇪

IJSEM list: Oren A, Garrity GM. Notification list. Notification that new names and new combinations have appeared in volume 71, part 4 of the IJSEM. Int J Syst Evol Microbiol 2021; 71:4850.

Nomenclatural status: validly published under the ICNP

Taxonomic status: synonym (taxonomically suspended)

Correct name: Catabacter hongkongensis Lau et al. 2014

• Synonyms:

  • Name	Kind
    Catabacter hongkongensis Lau et al. 2014	homotypic synonym, validly published under the ICNP
    "Catabacter hongkongensis" Lau et al. 2007	homotypic synonym, not validly published

• Notes:
  • ❗ Christensenella hongkongensis 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 Christensenella.
  • 😷 The taxon name shown here has no risk group assigned, but is the homotypic synonym of Catabacter hongkongensis Lau et al. 2014, which has a risk group (Canada) above 1. This may require that the name shown here is not treated as the correct name for practical purposes. — The taxon name shown here has no risk group assigned, but is the homotypic synonym of Catabacter hongkongensis Lau et al. 2014, which has a risk group (Germany) above 1. This may require that the name shown here is not treated as the correct name for practical purposes.
  • 🎓 Name mentioned 6 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 species itself. This name is taxonomically suspended (and therefore not recommended for medical use for now) until no later than 2026 in favour of Catabacter hongkongensis Lau et al. 2014. Publication: Lau SK, Fan RY, Lo HW, Ng RH, Wong SS, Li IW, Wu AK, Ng KH, Tseung S, Lee RA, et al. High mortality associated with Catabacter hongkongensis bacteremia. J Clin Microbiol 2012; 50:2239-2243. 🇭🇰 Oren A, Garrity GM. Validation list no. 159. List of new names and new combinations previously effectively, but not validly, published. Int J Syst Evol Microbiol 2014; 64:2927-2929.

Parent taxon: Christensenella Morotomi et al. 2012

Assigned by: Liu X, Sutter JL, de la Cuesta-Zuluaga J, Waters JL, Youngblut ND, Ley RE. Reclassification of Catabacter hongkongensis as Christensenella hongkongensis comb. nov. based on whole genome analysis. Int J Syst Evol Microbiol 2021; 71:4774. 🇩🇪

Linking: To permanently link to this page, use https://doi.org/10.83108/rn.2988Copy to clipboardLink copied to clipboard

Record number: 2988