Name: Serpulina innocens (Kinyon and Harris 1979) Stanton 1992

Category: Species

Proposed as: comb. nov.

Basonym: Treponema innocens Kinyon and Harris 1979 (Approved Lists 1980)

Etymology: in’no.cens. L. fem. adj. innocens, harmless, inoffensive (referring to non-pathogenic nature of the species for swine)

Pronunciation (Latin), gender: … IN-no-kens, feminine

Type strain: ATCC 29796; B 256; CCUG 17081

Conduct genome-based taxonomy at

16S rRNA gene: M57744 Analyse FASTA

Valid publication: Stanton TB. Proposal to change the genus designation Serpula to Serpulina gen. nov. containing the species Serpulina hyodysenteriae comb. nov. and Serpulina innocens comb. nov. Int J Syst Bacteriol 1992; 42:189-190. 🇺🇸

IJSEM list: Anonymous. Notification list. Notification that new names and new combinations have appeared in volume 42, part 1 of the IJSB. Int J Syst Bacteriol 1992; 42:328-329.

Nomenclatural status: validly published under the ICNP

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

Correct name: Brachyspira innocens (Kinyon and Harris 1979) Ochiai et al. 1998

Risk group: 2

• Synonyms:

  • Name	Kind
    Treponema innocens Kinyon and Harris 1979 (Approved Lists 1980)	homotypic synonym, validly published under the ICNP
    Serpula innocens (Kinyon and Harris 1979) Stanton et al. 1991	homotypic synonym, validly published under the ICNP, illegitimate name
    Brachyspira innocens (Kinyon and Harris 1979) Ochiai et al. 1998	homotypic synonym, validly published under the ICNP

• Notes:
  • ❗ Serpulina innocens 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 Serpulina.
  • 😷 The risk group for Canada has been imported on 2024-02-27. The full classification is: risk group = 2, note = "Animal classification RG: 2 - 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 = 1. — The risk group for Germany has been imported on 2023-10-29. The full classification is: risk group = 2, note = "t". — 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 28 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 species itself.
  • 🧍 Replacement of the illegitimate original name, Serpula innocens (Kinyon and Harris 1979) Stanton et al. 1991, which is illegitimate because of precedence of the fungal genus Serpula [Rule 51b(4)]. Publication: Stanton TB, Jensen NS, Casey TA, Tordoff LA, Dewhirst FE, Paster BJ. Reclassification of Treponema hyodysenteriae and Treponema innocens in a new genus, Serpula gen. nov., as Serpula hyodysenteriae comb. nov. and Serpula innocens comb. nov. Int J Syst Bacteriol 1991; 41:50-58. 🇺🇸

Parent taxon: Serpulina Stanton 1992

Assigned by: Stanton TB. Proposal to change the genus designation Serpula to Serpulina gen. nov. containing the species Serpulina hyodysenteriae comb. nov. and Serpulina innocens comb. nov. Int J Syst Bacteriol 1992; 42:189-190. 🇺🇸

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Record number: 784880