Name: Virgibacillus massiliensis Khelaifia et al. 2023

Category: Species

Proposed as: sp. nov.

Etymology: mas.si.li.en’sis. L. masc. adj. massiliensis, from Massilia, the Roman name for Marseille, France, where the type strain was isolated

Pronunciation (Latin), gender: … mas-si-li-EN-sis, masculine

Type strain: CSUR P971; DSM 28587; Vm-5

Conduct genome-based taxonomy at

16S rRNA gene: HG931931 Analyse FASTA

Effective publication: Khelaifia S, Croce O, Lagier JC, Robert C, Couderc C, Di Pinto F, Davoust B, Djossou F, Raoult D, Fournier PE. Noncontiguous finished genome sequence and description of Virgibacillus massiliensis sp. nov., a moderately halophilic bacterium isolated from human gut. New Microbes New Infect 2015; 8:78-88. 🇫🇷

IJSEM list: Oren A, Göker M. Validation list no. 209. List of new names and new combinations previously effectively, but not validly, published. Int J Syst Evol Microbiol 2023; 73:5709.

Nomenclatural status: validly published under the ICNP

Taxonomic status: synonym

Correct name: Virgibacillus salexigens (Garabito et al. 1997) Heyrman et al. 2003

• Synonyms:

  • Name	Kind
    Virgibacillus kapii Daroonpunt et al. 2016	heterotypic synonym, validly published under the ICNP
    Salibacillus salexigens (Garabito et al. 1997) Wainø et al. 1999	heterotypic synonym, validly published under the ICNP
    Bacillus salexigens Garabito et al. 1997	heterotypic synonym, validly published under the ICNP
    Virgibacillus salexigens (Garabito et al. 1997) Heyrman et al. 2003	heterotypic synonym, validly published under the ICNP

• Notes:
  • ⏲ According to Menasria and Zaatout (2025), this species is a later heterotypic synonym of Bacillus salexigens Garabito et al. 1997. Publication: Menasria T, Zaatout N. Genome-based reclassification of Virgibacillus kapii Daroonpunt et al. 2016 and Virgibacillus massiliensis Khelaifia et al. 2023 as later heterotypic synonyms of Virgibacillus salexigens (Garabito et al. 1997) Heyrman et al. 2003. Int J Syst Evol Microbiol 2025; 75:6990. 🇩🇿
  • ⏲ According to Menasria and Zaatout (2025), this species is a later heterotypic synonym of Salibacillus salexigens (Garabito et al. 1997) Wainø et al. 1999. Publication: Menasria T, Zaatout N. Genome-based reclassification of Virgibacillus kapii Daroonpunt et al. 2016 and Virgibacillus massiliensis Khelaifia et al. 2023 as later heterotypic synonyms of Virgibacillus salexigens (Garabito et al. 1997) Heyrman et al. 2003. Int J Syst Evol Microbiol 2025; 75:6990. 🇩🇿
  • ⏲ According to Menasria and Zaatout (2025), this species is a later heterotypic synonym of Virgibacillus salexigens (Garabito et al. 1997) Heyrman et al. 2003. Publication: Menasria T, Zaatout N. Genome-based reclassification of Virgibacillus kapii Daroonpunt et al. 2016 and Virgibacillus massiliensis Khelaifia et al. 2023 as later heterotypic synonyms of Virgibacillus salexigens (Garabito et al. 1997) Heyrman et al. 2003. Int J Syst Evol Microbiol 2025; 75:6990. 🇩🇿
  • ⏲ According to Menasria and Zaatout (2025), this species is a later heterotypic synonym of Virgibacillus kapii Daroonpunt et al. 2016. Publication: Menasria T, Zaatout N. Genome-based reclassification of Virgibacillus kapii Daroonpunt et al. 2016 and Virgibacillus massiliensis Khelaifia et al. 2023 as later heterotypic synonyms of Virgibacillus salexigens (Garabito et al. 1997) Heyrman et al. 2003. Int J Syst Evol Microbiol 2025; 75:6990. 🇩🇿
  • ❗ Virgibacillus massiliensis 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 Virgibacillus.
  • 🎓 Name mentioned 6 times in PubMed until 2025-06-04.

Parent taxon: Virgibacillus Heyndrickx et al. 1998

Assigned by: Khelaifia S, Croce O, Lagier JC, Robert C, Couderc C, Di Pinto F, Davoust B, Djossou F, Raoult D, Fournier PE. Noncontiguous finished genome sequence and description of Virgibacillus massiliensis sp. nov., a moderately halophilic bacterium isolated from human gut. New Microbes New Infect 2015; 8:78-88. 🇫🇷

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Record number: 36180