Name: Herpetosiphon nigricans Lewin 1970 (Approved Lists 1980)

Category: Species

Proposed as: sp. nov.

Etymology: ni’gri.cans. L. masc. part. adj. nigricans, blackening

Pronunciation, gender: NI-gri-kans, masculine

Type strain: ATCC 23147; DSM 23189; NBRC 102662; NCIMB 1420; SS-2

See detailed strain information at

Conduct genome-based taxonomy at

16S rRNA gene: AB301615 Analyse FASTA

Effective publication: Lewin RA. New Herpetosiphon species (Flexibacterales). Can J Microbiol 1970; 16:517-520.

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: Flavilitoribacter nigricans (Lewin 1970) García-López et al. 2020

Risk group: 1

• Synonyms:

  • Name	Kind
    Lewinella nigricans (Lewin 1970) Sly et al. 1998	homotypic synonym, validly published under the ICNP
    Flavilitoribacter nigricans (Lewin 1970) García-López et al. 2020	homotypic synonym, validly published under the ICNP

• Notes:
  • ❗ Herpetosiphon nigricans 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 Herpetosiphon.
  • 😷 The risk group for Canada has been imported on 2024-02-27. The full classification is: risk group = 1, 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 = 1. — 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 1 time 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 other species in the genus.

Parent taxon: Herpetosiphon Holt and Lewin 1968 (Approved Lists 1980)

Assigned by: Lewin RA. New Herpetosiphon species (Flexibacterales). Can J Microbiol 1970; 16:517-520.

Linking: To permanently link to this page, use https://lpsn.dsmz.de/species/herpetosiphon-nigricansCopy to clipboardLink copied to clipboard

Record number: 784014