Name: "Colibacter massiliensis" Mailhe et al. 2017

Category: Species

Proposed as: sp. nov.

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

Pronunciation, gender: mas-si-li-EN-sis, masculine

Nomenclatural type: CSUR P2911; DSM 103304; Marseille P2911

Conduct genome-based taxonomy at

16S rRNA gene: LT576403 Analyse FASTA

Original publication: Mailhe M, Ricaboni D, Vitton V, Cadoret F, Fournier PE, Raoult D. 'Colibacter massiliensis' gen. nov., sp. nov., a new bacterial species isolated from human left colon. New Microbes New Infect 2017; 17:23-24.

Nomenclatural status: not validly published

Taxonomic status: synonym (and no standing)

Correct name: Megasphaera coli Heng et al. 2025

• Synonyms:

  • Name	Kind
    Megasphaera coli Heng et al. 2025	homotypic synonym, validly published under the ICNP

• Notes:
  • 🥇 Nomenclatural type of the genus "Colibacter" Mailhe et al. 2017. Publication: Mailhe M, Ricaboni D, Vitton V, Cadoret F, Fournier PE, Raoult D. 'Colibacter massiliensis' gen. nov., sp. nov., a new bacterial species isolated from human left colon. New Microbes New Infect 2017; 17:23-24.

Parent taxon: "Colibacter" Mailhe et al. 2017

Assigned by: Mailhe M, Ricaboni D, Vitton V, Cadoret F, Fournier PE, Raoult D. 'Colibacter massiliensis' gen. nov., sp. nov., a new bacterial species isolated from human left colon. New Microbes New Infect 2017; 17:23-24.

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Record number: 2407