Name: Actinobacillus equuli (van Straaten 1918) Haupt 1934 (Approved Lists 1980)

Category: Species

Proposed as: comb. nov.

Basonym: "Bacillus equuli" van Straaten 1918

Etymology: e.qu.u’li. L. gen. masc. n. equuli, of a foal, of a small young horse

Gender: masculine

Type strain: ATCC 19392; CCUG 2041; CIP 103284; DSM 19655; JCM 2432; LMG 3736; NCTC 8529

See detailed strain information at

Conduct genome-based taxonomy at

16S rRNA gene: M75072 Analyse FASTA

Effective publication: Haupt H. Zur Frage der Verwandschaft des Actinobacillus Lignieresii Brumpt 1910, des Bacillus equuli van Straaten 1918 und des Bacillus mallei Flügge 1886. Archiv für Wissenschaftliche und Praktische Tierheilkunde 1934; 67:513-524.

IJSEM list: Skerman VBD, McGowan V, Sneath PHA. Approved lists of bacterial names. Int J Syst Bacteriol 1980; 30:225-420.

Nomenclatural status: validly published under the ICNP

Taxonomic status: correct name

• Synonyms:

  • Name	Kind
    "Bacillus equuli" van Straaten 1918	homotypic synonym, not validly published, basonym of name in Approved Lists

• Notes:
  • According to Bartlett et al. (2022), this species is an established human pathogen. Publication: Bartlett A, Padfield D, Lear L, Bendall R, Vos M. A comprehensive list of bacterial pathogens infecting humans. Microbiology 2022; 168:0.

Subdivision:

Number of child taxa with a validly published and correct name: 2
Number of child taxa with a validly published name, including synonyms: 2
Total number of child taxa: 2

• Child taxa:

  • Name	Nomenclatural status	Taxonomic status
    Actinobacillus equuli subsp. equuli (van Straaten 1918) Christensen et al. 2002	validly published under the ICNP	correct name
    Actinobacillus equuli subsp. haemolyticus Christensen et al. 2002	validly published under the ICNP	correct name

Parent taxon: Actinobacillus Brumpt 1910 (Approved Lists 1980)

Assigned by: Haupt H. Zur Frage der Verwandschaft des Actinobacillus Lignieresii Brumpt 1910, des Bacillus equuli van Straaten 1918 und des Bacillus mallei Flügge 1886. Archiv für Wissenschaftliche und Praktische Tierheilkunde 1934; 67:513-524.

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Record number: 783277