Name: Clostridioides mangenotii (Prévot and Zimmès-Chaverou 1947) Lawson et al. 2016

Category: Species

Proposed as: comb. nov.

Basonym: "Inflabilis mangenoti" Prévot and Zimmès-Chaverou 1947

Etymology: man.gen.ot’i.i. N.L. gen. masc. n. mangenotii, pertaining to Professor G. Mangenot, Italian bacteriologist

Gender: neuter

Type strain: ATCC 25761; DSM 1289; JCM 1428

See detailed strain information at

Conduct genome-based taxonomy at

16S rRNA gene: M59098 Analyse FASTA

Effective publication: Lawson PA, Citron DM, Tyrrell KL, Finegold SM. Reclassification of Clostridium difficile as Clostridioides difficile (Hall and O'Toole 1935) Prevot 1938. Anaerobe 2016; 40:95-99.

IJSEM list: Oren A, Garrity GM. Validation list no. 171. List of new names and new combinations previously effectively, but not validly, published. Int J Syst Evol Microbiol 2016; 66:3761-3764.

Nomenclatural status: validly published under the ICNP

Taxonomic status: synonym

Correct name: Metaclostridioides mangenotii (Prévot and Zimmès-Chaverou 1947) Bello et al. 2024

Risk group: 1

• Synonyms:

  • Name	Kind
    Metaclostridioides mangenotii (Prévot and Zimmès-Chaverou 1947) Bello et al. 2024	homotypic synonym, validly published under the ICNP
    "Inflabilis mangenoti" Prévot and Zimmès-Chaverou 1947	homotypic synonym, not validly published, basonym of name in Approved Lists
    Clostridium mangenotii (Prévot and Zimmès-Chaverou 1947) McClung and McCoy 1957 (Approved Lists 1980)	homotypic synonym, validly published under the ICNP

• 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.
  • ❗ Clostridioides mangenotii 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 Clostridioides.
  • 😷 The risk group for Germany has been imported on 2023-10-29. The full classification is: risk group = 1.
  • 🎓 Name mentioned 2 times in PubMed until 2024-03-27.

Parent taxon: Clostridioides Lawson et al. 2016

Assigned by: Lawson PA, Citron DM, Tyrrell KL, Finegold SM. Reclassification of Clostridium difficile as Clostridioides difficile (Hall and O'Toole 1935) Prevot 1938. Anaerobe 2016; 40:95-99.

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Record number: 794454