Name: Insolitispirillum peregrinum (Pretorius 1963) Yoon et al. 2007

Category: Species

Proposed as: comb. nov.

Basonym: "Spirillum peregrinum" Pretorius 1963

Etymology: pe.re.gri’num. L. neut. adj. peregrinum, strange, foreign

Pronunciation (Latin), gender: in-so-li-ti-spi-RIL-lum pe-re-GRI-num, neuter

Type strain: ATCC 15387; CCUG 13795; DSM 1839; IFO 14922; JCM 21450; LMG 4340; NBRC 14922; NC; NCIB 9435; NCIMB 9435

See detailed strain information at

Conduct genome-based taxonomy at

16S rRNA gene: EF612767 Analyse FASTA

Valid publication: Yoon JH, Kang SJ, Park S, Lee SY, Oh TK. Reclassification of Aquaspirillum itersonii and Aquaspirillum peregrinum as Novispirillum itersonii gen. nov., comb. nov. and Insolitispirillum peregrinum gen. nov., comb. nov. Int J Syst Evol Microbiol 2007; 57:2830-2835. 🇰🇷

IJSEM list: Euzeby JP. Notification list. Notification that new names and new combinations have appeared in volume 57, part 12 of the IJSEM. Int J Syst Evol Microbiol 2008; 58:531-532.

Nomenclatural status: validly published under the ICNP

Taxonomic status: correct name (and explicitly recommended for medical use)

• Synonyms:

  • Name	Kind
    "Levispirillum peregrinum" (Pretorius 1963) Pot and Gillis 2005	homotypic synonym, not validly published
    Aquaspirillum peregrinum (Pretorius 1963) Hylemon et al. 1973 (Approved Lists 1980)	homotypic synonym, validly published under the ICNP
    "Spirillum peregrinum" Pretorius 1963	homotypic synonym, not validly published, basonym of name in Approved Lists

• Notes:
  • 🥇 Nomenclatural type of the genus Insolitispirillum Yoon et al. 2007. Publication: Yoon JH, Kang SJ, Park S, Lee SY, Oh TK. Reclassification of Aquaspirillum itersonii and Aquaspirillum peregrinum as Novispirillum itersonii gen. nov., comb. nov. and Insolitispirillum peregrinum gen. nov., comb. nov. Int J Syst Evol Microbiol 2007; 57:2830-2835. 🇰🇷
  • 🎓 Name mentioned 2 times in PubMed until 2026-06-11.
  • 🙆 This name is on the List of Recommended Names for bacteria of medical importance (LoRN) as the name to be applied to this species. The name is on LoRN because of the recorded risk group of the genus.
  • 🧍 In the paper by Yoon et al. 2007, the type strain is not cited in the protologue. Publication: Euzeby JP. List of Bacterial Names with Standing in Nomenclature: a folder available on the Internet. Int J Syst Bacteriol 1997; 47:590-592. 🇫🇷
  • 🧍 The phylogenetic position of this species was determined in a genome-scale analysis by Hördt et al. (2020). Publication: Hordt A, Lopez MG, Meier-Kolthoff JP, Schleuning M, Weinhold LM, Tindall BJ, Gronow S, Kyrpides NC, Woyke T, Goker M. Analysis of 1,000+ Type-Strain Genomes Substantially Improves Taxonomic Classification of Alphaproteobacteria. Front Microbiol 2020; 11:468. 🇩🇪

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
    Insolitispirillum peregrinum subsp. integrum (Terasaki 1973) Yoon et al. 2007	validly published under the ICNP	correct name
    Insolitispirillum peregrinum subsp. peregrinum (Pretorius 1963) Yoon et al. 2007	validly published under the ICNP	correct name

Parent taxon: Insolitispirillum Yoon et al. 2007

Assigned by: Yoon JH, Kang SJ, Park S, Lee SY, Oh TK. Reclassification of Aquaspirillum itersonii and Aquaspirillum peregrinum as Novispirillum itersonii gen. nov., comb. nov. and Insolitispirillum peregrinum gen. nov., comb. nov. Int J Syst Evol Microbiol 2007; 57:2830-2835. 🇰🇷

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Record number: 787037