Name: Falcivibrio vaginalis Hammann et al. 1984

Category: Species

Proposed as: sp. nov.

Etymology: va.gi.na’lis. L. fem. n. vagina, sheath, vagina; L. masc./fem. adj. suff. -alis, suffix denoting pertaining to; N.L. masc. adj. vaginalis, pertaining to vagina, of the vagina

Pronunciation, gender: wa-gi-NA-lis, masculine

Type strain: ATCC 43063; CCUG 24716; DSM 2711; LMG 7856; NCTC 11820; V125

Conduct genome-based taxonomy at

16S rRNA gene: AJ576086 Analyse FASTA

Effective publication: Hammann R, Kronibus A, Viebahn A, Brandis H. Falcivibrio grandis gen. nov. sp. nov., and Falcivibrio vaginalis gen. nov. sp. nov., a new genus and species to accommodate anaerobic motile curved rods formerly described as “Vibrio mulieris” (Prévot 1940) Breed et al. 1948. Syst. Appl. Microbiol. 1984; 5:81-96.

IJSEM list: Anonymous. Validation list no. 15. Validation of publication of new names and new combinations previously effectively published outside the IJSB. Int J Syst Bacteriol 1984; 34:355-357.

Nomenclatural status: validly published under the ICNP

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

Correct name: Mobiluncus holmesii (Spiegel and Roberts 1984) Nouioui et al. 2018

Risk group: 2

• Synonyms:

  • Name	Kind
    Mobiluncus holmesii (Spiegel and Roberts 1984) Nouioui et al. 2018	heterotypic synonym, validly published under the ICNP
    Mobiluncus curtisii subsp. holmesii Spiegel and Roberts 1984	heterotypic synonym, validly published under the ICNP, distinct rank

• Emendations:
  • Nouioui et al. 2018 Nouioui I, Carro L, Garcia-Lopez M, Meier-Kolthoff JP, Woyke T, Kyrpides NC, Pukall R, Klenk HP, Goodfellow M, Goker M. Genome-Based Taxonomic Classification of the Phylum Actinobacteria. Front Microbiol 2018; 9:2007. Oren A, Garrity GM. List of changes in taxonomic opinion no. 29. Notification of changes in taxonomic opinion previously published outside the IJSEM. Int J Syst Evol Microbiol 2019; 69:13-32.
    Notes:
    • 🫂 Emendation accompanied by 2 proposals regarding the synonymy of the species.

• Notes:
  • ⏲ According to Hoyles et al. (2004), this species is a later heterotypic synonym of Mobiluncus curtisii Spiegel and Roberts 1984. Publication: Hoyles L, Collins MD, Falsen E, Nikolaitchouk N, McCartney AL. Transfer of members of the genus Falcivibrio to the genus Mobiluncus, and emended description of the genus Mobiluncus. Syst Appl Microbiol 2004; 27:72-83.
  • ⏲ According to Nouioui et al. (2018), this species is a later heterotypic synonym of Mobiluncus holmesii (Spiegel and Roberts 1984) Nouioui et al. 2018. Publication: Nouioui I, Carro L, Garcia-Lopez M, Meier-Kolthoff JP, Woyke T, Kyrpides NC, Pukall R, Klenk HP, Goodfellow M, Goker M. Genome-Based Taxonomic Classification of the Phylum Actinobacteria. Front Microbiol 2018; 9:2007.
  • ⏲ According to Nouioui et al. (2018), this species is not a later heterotypic synonym of Mobiluncus curtisii Spiegel and Roberts 1984. Publication: Nouioui I, Carro L, Garcia-Lopez M, Meier-Kolthoff JP, Woyke T, Kyrpides NC, Pukall R, Klenk HP, Goodfellow M, Goker M. Genome-Based Taxonomic Classification of the Phylum Actinobacteria. Front Microbiol 2018; 9:2007.
  • 🏢 Synonymy of this taxon was mentioned in an IJSEM list. Publication: Oren A, Garrity GM. List of changes in taxonomic opinion no. 29. Notification of changes in taxonomic opinion previously published outside the IJSEM. Int J Syst Evol Microbiol 2019; 69:13-32.
  • ❗ Falcivibrio vaginalis 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 Falcivibrio.
  • 🧬 The phylogenomic assignment score of this taxon is -0.25504 (N = 16).
  • 😷 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. — 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 the species itself.

Parent taxon: Falcivibrio Hammann et al. 1984

Assigned by: Hammann R, Kronibus A, Viebahn A, Brandis H. Falcivibrio grandis gen. nov. sp. nov., and Falcivibrio vaginalis gen. nov. sp. nov., a new genus and species to accommodate anaerobic motile curved rods formerly described as “Vibrio mulieris” (Prévot 1940) Breed et al. 1948. Syst. Appl. Microbiol. 1984; 5:81-96.

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Record number: 776175