Name: Weizmannia faecalis Kieu et al. 2023

Category: Species

Proposed as: sp. nov.

Etymology: fae.ca’lis. N.L. fem. adj. faecalis, of faeces in which the strain was isolated

Pronunciation (Latin), gender: … fa͡e-KA-lis, feminine

Type strain: CECT 9904; CSUR P8953; Marseille P8953

Conduct genome-based taxonomy at

16S rRNA gene: LR735539 Analyse FASTA

Effective publication: Kieu HT, Pham TPT, Lo CI, Alibar S, Brechard L, Armstrong N, Decloquement P, Diallo A, Sokhna C, Million M, et al. Weizmannia faecalis sp. nov., isolated from a human stool sample. Arch Microbiol 2022; 204:612. 🇫🇷

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: Heyndrickxia faecalis (Kieu et al. 2023) Narsing Rao et al. 2023

• Synonyms:

  • Name	Kind
    Heyndrickxia faecalis (Kieu et al. 2023) Narsing Rao et al. 2023	homotypic synonym, validly published under the ICNP

• Notes:
  • ❗ Weizmannia faecalis 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 Weizmannia.
  • 🎓 Name mentioned 3 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 pathogenicity of other species in the genus.

Parent taxon: Weizmannia Gupta et al. 2020

Assigned by: Kieu HT, Pham TPT, Lo CI, Alibar S, Brechard L, Armstrong N, Decloquement P, Diallo A, Sokhna C, Million M, et al. Weizmannia faecalis sp. nov., isolated from a human stool sample. Arch Microbiol 2022; 204:612. 🇫🇷

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Record number: 36273