Name: Megasphaera intestinihominis Hitch et al. 2025

Category: Species

Proposed as: sp. nov.

Etymology: in.tes.ti.ni.ho’mi.nis. L. gen. neut. n. intestini, of the intestine; L. gen. masc. n. hominis, of a human being; N.L. gen. masc. n. intestinihominis, of the human intestine

Pronunciation, gender: in-tes-ti-ni-HO-mi-nis, feminine

Type strain: CLA AA-H81; DSM 118069; LMG 33597

Conduct genome-based taxonomy at

16S rRNA gene: PP977959 Analyse FASTA

Effective publication: Hitch TCA, Masson JM, Pauvert C, Bosch J, Nuchtern S, Treichel NS, Baloh M, Razavi S, Afrizal A, Kousetzi N, et al. HiBC: a publicly available collection of bacterial strains isolated from the human gut. Nat Commun 2025; 16:4203.

IJSEM list: Oren A, Göker M. Validation list no. 225. List of new names and new combinations previously effectively, but not validly, published. Int J Syst Evol Microbiol 2025; 75:6863.

Nomenclatural status: validly published under the ICNP

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

Correct name: Megasphaera indica Lanjekar et al. 2014

• Synonyms:

  • Name	Kind
    Megasphaera indica Lanjekar et al. 2014	heterotypic synonym, validly published under the ICNP

• Notes:
  • ⏲ According to Heng et al. (2025), this species is a later heterotypic synonym of Megasphaera indica Lanjekar et al. 2014. Publication: Heng YC, Lee JKY, Silvaraju S, Kittelmann S. Description of Megasphaera jansseni sp. nov., a novel short- and medium-chain fatty acid-producing species isolated from faeces of a wild boar (Sus scrofa), and a taxonomic note on the family Veillonellaceae. Int J Syst Evol Microbiol 2025; 75:6937.
  • ❗ Megasphaera intestinihominis 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 Megasphaera.
  • 🎓 Name mentioned 0 times in PubMed until 2025-10-21.
  • 🙅 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 genus.

Parent taxon: Megasphaera Rogosa 1971 (Approved Lists 1980)

Assigned by: Hitch TCA, Masson JM, Pauvert C, Bosch J, Nuchtern S, Treichel NS, Baloh M, Razavi S, Afrizal A, Kousetzi N, et al. HiBC: a publicly available collection of bacterial strains isolated from the human gut. Nat Commun 2025; 16:4203.

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Record number: 65256