Species Clostridium clostridioforme

Name: Clostridium clostridioforme corrig. (Burri and Ankersmit 1906) Kaneuchi et al. 1976 (Approved Lists 1980)

Category: Species

Proposed as: comb. nov.

Basonym: "Bacterium clostridiiforme" Burri and Ankersmit 1906

Etymology: clos.tri.di.o.for’me. Gr. masc. n. klôstêr, a spindle; Gr. dim. suff. -idion; N.L. neut. dim. n. clostridium, a small spindle; L. adj. suff. -formis -is -e, -like, in the shape of; from L. fem. n. forma, figure, shape, appearance; N.L. neut. adj. clostridioforme, in the form of a small spindle, spindle-shaped

Pronunciation (Latin), gender: klos-TRI-di-um klos-tri-di-o-FOR-me, neuter

Type strain: ATCC 25537; BCRC 14545; CCRC 14545; CCUG 16791; CIP 104318; DSM 933; JCM 1291; NCIMB 11018; NCTC 11224; VPI 0316

Conduct genome-based taxonomy at

16S rRNA gene: M59089 Analyse FASTA

Effective publication: Kaneuchi C, Watanabe K, Terada A, Benno Y, Mitsuoka T. Taxonomic study of Bacteroides clostridiiformis subsp. clostridiiformis (Burri and Ankersmit) Holdeman and Moore and of related organisms: proposal of Clostridium clostridiiforme (Burri and Andersmit) comb. nov. and Clostridium symbiosum (Stevens) comb. nov. International Journal of Systematic Bacteriology 1976; 26:195-204.

IJSEM list: Skerman VBD, McGowan V, Sneath PHA. Approved lists of bacterial names. Int J Syst Bacteriol 1980; 30:225-420.

Nomenclatural status: validly published under the ICNP

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

Correct name: Enterocloster clostridioformis (Burri and Ankersmit 1906) Haas and Blanchard 2020

Risk group: 2

Synonyms:

Name	Kind
Enterocloster clostridioformis (Burri and Ankersmit 1906) Haas and Blanchard 2020	homotypic synonym, validly published under the ICNP
"Bacterium clostridiiforme" Burri and Ankersmit 1906	homotypic synonym, not validly published, basonym of name in Approved Lists
"Bacteroides clostridiiformis" (Burri and Ankersmit 1906) Holdeman and Moore 1970	homotypic synonym, not validly published
Clostridium clostridiiforme (Burri and Ankersmit 1906) Kaneuchi et al. 1976 (Approved Lists 1980)	other spelling of name, inaccurate spelling

Notes:
- ❗ Clostridium clostridioforme 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 Clostridium.
- 😷 The risk group for Belgium has been imported on 2024-02-05. The full classification is: risk group = 2, note = "human pathogen". — The risk group for Canada has been imported on 2024-02-27. The full classification is: risk group = 2, note = "Animal classification RG: 1 - Security sensitive biological agent: No - Terrestrial animal pathogen under Canadian Food Inspection Agency authority: No - Containment level: Containment Level 2". — The risk group for Swiss Confederation has been imported on 2024-02-01. The full classification is: risk group = 2. — The risk group for Germany has been imported on 2023-10-29. The full classification is: risk group = 2. — The risk group for Taiwan has been imported on 2024-11-03. The full classification is: risk group = 2, note = "P650 = v". — 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 69 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.
- 🧍 The original spelling, Clostridium clostridiiforme (sic), has been corrected by Cato et al. 1986. Publication: Cato EP, George WL, Finegold SM. Genus Clostridium Prazmowski 1880, 23AL. In: Sneath PHA, Mair NS, Sharpe ME, Holt JG (eds), Bergey's Manual of Systematic Bacteriology, first edition, vol. 2, The Williams & Wilkins Co., Baltimore, 1986, p. 1141-1200.

Parent taxon: Clostridium Prazmowski 1880 (Approved Lists 1980)

Assigned by: Kaneuchi C, Watanabe K, Terada A, Benno Y, Mitsuoka T. Taxonomic study of Bacteroides clostridiiformis subsp. clostridiiformis (Burri and Ankersmit) Holdeman and Moore and of related organisms: proposal of Clostridium clostridiiforme (Burri and Andersmit) comb. nov. and Clostridium symbiosum (Stevens) comb. nov. International Journal of Systematic Bacteriology 1976; 26:195-204.

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Record number: 774857

This LPSN page was printed on 2026-08-10 20:01:43

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Species Clostridium clostridioforme