Name: Oceanospirillum minutulum (Watanabe 1959) Hylemon et al. 1973 (Approved Lists 1980)

Category: Species

Proposed as: comb. nov.

Basonym: "Spirillum minutulum" Watanabe 1959

Etymology: mi.nu’tu.lum. L. neut. adj. minutulum, very little

Pronunciation (Latin), gender: … mi-NU-tu-lum, neuter

Type strain: ATCC 19193; CIP 103376; DSM 6287; IFO 15450; LMG 5334; NBRC 15450; NCIMB 1347; NCMB 1347

See detailed strain information at

Conduct genome-based taxonomy at

16S rRNA gene: AB680862 Analyse FASTA

Effective publication: Hylemon PB, Wells Jr. JS, Krieg NR, Jannasch HW. The genus Spirillum: A taxonomic study. International Journal of Systematic Bacteriology 1973; 23:340-380.

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: synonym

Correct name: Marinospirillum minutulum (Watanabe 1959) Satomi et al. 1998

Risk group: 1

• Synonyms:

  • Name	Kind
    "Spirillum minutulum" Watanabe 1959	homotypic synonym, not validly published, basonym of name in Approved Lists
    Marinospirillum minutulum (Watanabe 1959) Satomi et al. 1998	homotypic synonym, validly published under the ICNP

• Notes:
  • ❗ Oceanospirillum minutulum 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 Oceanospirillum.
  • 😷 The risk group for Canada has been imported on 2024-02-27. The full classification is: risk group = 1, note = "Animal classification RG: 1 - Security sensitive biological agent: No - Terrestrial animal pathogen under Canadian Food Inspection Agency authority: No - Containment level: Containment Level 1". — The risk group for Swiss Confederation has been imported on 2024-02-01. The full classification is: risk group = 1. — The risk group for Germany has been imported on 2023-10-29. The full classification is: risk group = 1. — 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 2 times in PubMed until 2025-06-04.

Parent taxon: Oceanospirillum Hylemon et al. 1973 (Approved Lists 1980)

Assigned by: Hylemon PB, Wells Jr. JS, Krieg NR, Jannasch HW. The genus Spirillum: A taxonomic study. International Journal of Systematic Bacteriology 1973; 23:340-380.

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Record number: 778952