Name: Moraxella veridica Nguyen et al. 2025

Category: Species

Proposed as: sp. nov.

Etymology: ve.ri’di.ca. L. fem. adj. veridica, truthful

Pronunciation, gender: … we-RI-di-ka, feminine

Type strain: ATCC 23246; CCUG 26886; CIP A151; LMG 1133; NCTC 4103

Conduct genome-based taxonomy at

16S rRNA gene: PQ314868 Analyse FASTA

Valid publication: Nguyen SV, Escobar VH, Ali SS, Puthuveetil NP, Petrone JR, Kirkland JL, Gaffney K, Tabron CL, Wax N, Duncan J, et al. Reclassification of atypical Moraxella catarrhalis ATCC 23246 as Moraxella veridica sp. nov. Int J Syst Evol Microbiol 2025; 75:6797. 🇺🇸

IJSEM list: Oren A, Göker M. Notification list. Notification that new names and new combinations have appeared in volume 75, part 5 of the IJSEM. Int J Syst Evol Microbiol 2025; 75:6824.

Nomenclatural status: validly published under the ICNP

Taxonomic status: synonym (taxonomically suspended)

Correct name: Moraxella catarrhalis (Frosch and Kolle 1896) Henriksen and Bøvre 1968 (Approved Lists 1980)

• Synonyms:

  • Name	Kind
    "Mikrokokkus catarrhalis" Frosch and Kolle 1896	heterotypic synonym, not validly published, basonym of name in Approved Lists
    Moraxella catarrhalis (Frosch and Kolle 1896) Henriksen and Bøvre 1968 (Approved Lists 1980)	heterotypic synonym, validly published under the ICNP
    Branhamella catarrhalis (Frosch and Kolle 1896) Catlin 1970 (Approved Lists 1980)	heterotypic synonym, validly published under the ICNP

• Notes:
  • ⏲ According to Committee (2025), this species is a later heterotypic synonym of "Mikrokokkus catarrhalis" Frosch and Kolle 1896. Publication: Committee AH. Mitigating changes in prokaryotic nomenclature: Definitions and Workflow. Zenodo 2025; 2025:15320329.
  • ⏲ According to Committee (2025), this species is a later heterotypic synonym of Branhamella catarrhalis (Frosch and Kolle 1896) Catlin 1970 (Approved Lists 1980). Publication: Committee AH. Mitigating changes in prokaryotic nomenclature: Definitions and Workflow. Zenodo 2025; 2025:15320329.
  • ⏲ According to Committee (2025), this species is a later heterotypic synonym of Moraxella catarrhalis (Frosch and Kolle 1896) Henriksen and Bøvre 1968 (Approved Lists 1980). Publication: Committee AH. Mitigating changes in prokaryotic nomenclature: Definitions and Workflow. Zenodo 2025; 2025:15320329.
  • ❗ Moraxella veridica 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 Moraxella.
  • 🎓 Name mentioned 1 time in PubMed until 2025-05-27.
  • 🪓 Organisms assigned to this species have previously been classified as Moraxella catarrhalis (Frosch and Kolle 1896) Henriksen and Bøvre 1968 (Approved Lists 1980). Publication: Henriksen SD, Bovre K. The taxonomy of the genera Moraxella and Neisseria. J Gen Microbiol 1968; 51:387-392. Skerman VBD, McGowan V, Sneath PHA. Approved lists of bacterial names. Int J Syst Bacteriol 1980; 30:225-420.
  • 😴 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. This name is taxonomically suspended (and therefore not recommended for medical use for now) until no later than 2030 in favour of Moraxella catarrhalis (Frosch and Kolle 1896) Henriksen and Bøvre 1968 (Approved Lists 1980). Publication: Henriksen SD, Bovre K. The taxonomy of the genera Moraxella and Neisseria. J Gen Microbiol 1968; 51:387-392. Skerman VBD, McGowan V, Sneath PHA. Approved lists of bacterial names. Int J Syst Bacteriol 1980; 30:225-420.

Parent taxon: Moraxella Lwoff 1939 (Approved Lists 1980)

Assigned by: Nguyen SV, Escobar VH, Ali SS, Puthuveetil NP, Petrone JR, Kirkland JL, Gaffney K, Tabron CL, Wax N, Duncan J, et al. Reclassification of atypical Moraxella catarrhalis ATCC 23246 as Moraxella veridica sp. nov. Int J Syst Evol Microbiol 2025; 75:6797. 🇺🇸

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Record number: 65618