Name: "Pseudactinobacillus" Segui et al. 2026

Category: Genus

Proposed as: gen. nov.

Etymology: Pseud.ac.ti.no.ba.cil’lus. Gr. masc./fem. adj. pseudês, false; N.L. masc. n. Actinobacillus, a bacterial genus name; N.L. masc. n. Pseudactinobacillus, false Actinobacillus, from the sporadic misdiagnosis of the type species as Actinobacillus

Gender: masculine (stem: Pseudactinobacill-)

Type species: "Pseudactinobacillus ducreyi" (Neveu-Lemaire 1921) Segui et al. 2026

Original publication: Seguí G, Piñeiro-Iglesias B, Salvà-Serra F, Karlsson R, Moore ERB. Resolving taxonomic uncertainties in the genus Haemophilus: a genomics-based approach for the reclassification of species within genera of the family Pasteurellaceae and proposal of four novel genera and one novel species. Frontiers in Microbiology 2026; 17:0. 🇸🇪

Nomenclatural status: not validly published

Taxonomic status: synonym (and no standing)

Correct name: Haemophilus corrig. Winslow et al. 1917 (Approved Lists 1980)

• Synonyms:

  • Name	Kind
    "Parahaemophilus" Segui et al. 2026	heterotypic synonym, not validly published
    "Targowskia" Segui et al. 2026	heterotypic synonym, not validly published
    "Pseudohaemophilus" Segui et al. 2026	heterotypic synonym, not validly published
    Hemophilus Winslow et al. 1917 (Approved Lists 1980)	heterotypic synonym, inaccurate spelling
    Canicola Christensen et al. 2021	heterotypic synonym, validly published under the ICNP
    Haemophilus corrig. Winslow et al. 1917 (Approved Lists 1980)	heterotypic synonym, validly published under the ICNP

• Notes:
  • 🚂 For the type species of this genus another name is in use, which is affiliated with the genus Haemophilus corrig. Winslow et al. 1917 (Approved Lists 1980). Publication: Bergey DH, Harrison FC, Breed RS, Hammer BW, Huntoon FM. Bergey's Manual of Determinative Bacteriology, 1st ed. The Williams & Wilkins Co, Baltimore, 1923.
  • 🎰 The BRCs most frequently used for deposits in this group are: DSM: 1; ATCC: 1; NCTC: 1; CCUG: 1; CIP: 1.

Subdivision:

Number of child taxa with a validly published and correct name: 0
Number of child taxa with a validly published name, including synonyms: 0
Total number of child taxa: 1

• Child taxa:

  • Name	Nomenclatural status	Taxonomic status
    "Pseudactinobacillus ducreyi" (Neveu-Lemaire 1921) Segui et al. 2026	not validly published	synonym

Parent taxon: Pasteurellaceae Pohl 1981

Assigned by: Seguí G, Piñeiro-Iglesias B, Salvà-Serra F, Karlsson R, Moore ERB. Resolving taxonomic uncertainties in the genus Haemophilus: a genomics-based approach for the reclassification of species within genera of the family Pasteurellaceae and proposal of four novel genera and one novel species. Frontiers in Microbiology 2026; 17:0. 🇸🇪

Linking: To permanently link to this page, use https://doi.org/10.83108/rn.71416Copy to clipboardLink copied to clipboard

Record number: 71416