Name: Simonsiella steedae Kuhn and Gregory 1979 (Approved Lists 1980)

Category: Species

Proposed as: sp. nov.

Etymology: steed’ae. N.L. gen. fem. n. steedae, of Steed, named for Pamela D. M. Steed Glaister, who first isolated axenic cultures of Simonsiella and erected the family Simonsiellaceae

Gender: feminine

Type strain: ATCC 27409; DSM 2580; IAM 14972; JCM 21443; NBRC 102457

See detailed strain information at

Conduct genome-based taxonomy at

16S rRNA gene: AB087261 Analyse FASTA

Effective publication: Kuhn DA, Gregory DA. Emendation of Simonsiella muelleri Schmid and description of Simonsiella steedae sp. nov., with designations of the respective proposed neotype and holotype strains. Current Microbiology 1978; 1:11-14.

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: Conchiformibius steedae corrig. (Kuhn and Gregory 1979) Xie and Yokota 2005

Risk group: 1

• Synonyms:

  • Name	Kind
    Conchiformibius steedae corrig. (Kuhn and Gregory 1979) Xie and Yokota 2005	homotypic synonym, validly published under the ICNP
    Conchiformibium steedae (Kuhn and Gregory 1979) Xie and Yokota 2005	homotypic synonym, inaccurate spelling

• Notes:
  • ❗ Simonsiella steedae 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 Simonsiella.
  • 😷 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 1 time in PubMed until 2024-03-27.

Parent taxon: Simonsiella Schmid 1922 (Approved Lists 1980)

Assigned by: Kuhn DA, Gregory DA. Emendation of Simonsiella muelleri Schmid and description of Simonsiella steedae sp. nov., with designations of the respective proposed neotype and holotype strains. Current Microbiology 1978; 1:11-14.

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Record number: 780928