Name: Rodentibacter heylii Adhikary et al. 2017

Category: Species

Proposed as: sp. nov.

Etymology: hey’li.i. N.L. gen. masc. n. heylii, in honour of the Dutch bacteriologist J. G. Heyl

Pronunciation, gender: … HEY-li-i, masculine

Type strain: ATCC 12555; C57; CCUG 998; HIM1014-1; MCCM 237; P309; RGWyllie C57; Wyllie C57

See detailed strain information at

Conduct genome-based taxonomy at

16S rRNA gene: FJ685623 Analyse FASTA

Valid publication: Adhikary S, Nicklas W, Bisgaard M, Boot R, Kuhnert P, Waberschek T, Aalbaek B, Korczak B, Christensen H. Rodentibacter gen. nov. including Rodentibacter pneumotropicus comb. nov., Rodentibacter heylii sp. nov., Rodentibacter myodis sp. nov., Rodentibacter ratti sp. nov., Rodentibacter heidelbergensis sp. nov., Rodentibacter trehalosifermentans sp. nov., Rodentibacter rarus sp. nov., Rodentibacter mrazii and two genomospecies. Int J Syst Evol Microbiol 2017; 67:1793-1806. 🇩🇰

IJSEM list: Oren A, Garrity GM. Notification list. Notification that new names and new combinations have appeared in volume 67, part 6 of the IJSEM. Int J Syst Evol Microbiol 2017; 67:3137-3139.

Nomenclatural status: validly published under the ICNP

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

Correct name: Rodentibacter caecimuris (Lagkouvardos et al. 2016) Li 2024

Risk group: 2

• Synonyms:

  • Name	Kind
    Pasteurella caecimuris Lagkouvardos et al. 2016	heterotypic synonym, validly published under the ICNP
    Rodentibacter caecimuris (Lagkouvardos et al. 2016) Li 2024	heterotypic synonym, validly published under the ICNP

• Notes:
  • ⏲ According to Li (2024), this species is a later heterotypic synonym of Pasteurella caecimuris Lagkouvardos et al. 2016. Publication: Li MS. Rodentibacter caecimuris comb. nov., arising from the heterotypic synonymy between Pasteurella caecimuris Lagkouvardos et al. 2016 and Rodentibacter heylii Adhikary et al. 2017. Int J Syst Evol Microbiol 2024; 74:6279. 🇹🇼
  • ⏲ According to Li (2024), this species is a later heterotypic synonym of Rodentibacter caecimuris (Lagkouvardos et al. 2016) Li 2024. Publication: Li MS. Rodentibacter caecimuris comb. nov., arising from the heterotypic synonymy between Pasteurella caecimuris Lagkouvardos et al. 2016 and Rodentibacter heylii Adhikary et al. 2017. Int J Syst Evol Microbiol 2024; 74:6279. 🇹🇼
  • 🏢 Synonymy of this taxon was mentioned in an IJSEM list. Publication: Oren A, Göker M. Notification list. Notification that new names and new combinations have appeared in volume 74, part 2 of the IJSEM. Int J Syst Evol Microbiol 2024; 74:6301.
  • ❗ Rodentibacter heylii 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 Rodentibacter.
  • 😷 The risk group for Germany has been imported on 2023-10-29. The full classification is: risk group = 2, note = "Z". — If in doubt, use the risk group given in the regulations for your country and, if these are not available, use the risk group given in the catalogue of the culture collection from which you have obtained or intend to obtain the strain.
  • 🎓 Name mentioned 9 times in PubMed until 2025-06-04.
  • 🙅 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 species itself.
  • 🧍 Includes biovar Heyl of Pasteurella pneumotropica. Publication: Jawetz E. A pneumotropic pasteurella of laboratory animals; bacteriological and serological characteristics of the organism. J Infect Dis 1950; 86:172-183.

Parent taxon: Rodentibacter Adhikary et al. 2017

Assigned by: Adhikary S, Nicklas W, Bisgaard M, Boot R, Kuhnert P, Waberschek T, Aalbaek B, Korczak B, Christensen H. Rodentibacter gen. nov. including Rodentibacter pneumotropicus comb. nov., Rodentibacter heylii sp. nov., Rodentibacter myodis sp. nov., Rodentibacter ratti sp. nov., Rodentibacter heidelbergensis sp. nov., Rodentibacter trehalosifermentans sp. nov., Rodentibacter rarus sp. nov., Rodentibacter mrazii and two genomospecies. Int J Syst Evol Microbiol 2017; 67:1793-1806. 🇩🇰

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Record number: 795440