Name: Simonsiella crassa Schmid 1922 (Approved Lists 1980)

Category: Species

Proposed as: sp. nov.

Etymology: cras’sa. L. fem. adj. crassa, thick

Pronunciation (Latin), gender: si-mon-si-EL-la KRAS-sa, feminine

Type strain: ATCC 15533; CCUG 25927; CIP 103341; DSM 2578; IAM 14969; LMG 7829; NBRC 102455; NCTC 10283

See detailed strain information at

Conduct genome-based taxonomy at

16S rRNA gene: AB087264 Analyse FASTA

Effective publication: Simons H. Saprophytische Oscillarien des Menschen und der Tiere. Zentralblatt für Bakteriologie, Parasitenkunde, Infektionskrankheiten und Hygiene, Abteilung I 1922; 88:501-510.

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: Alysiella crassa (Schmid 1922) Xie and Yokota 2005

Risk group: 1

• Synonyms:

  • Name	Kind
    Alysiella crassa (Schmid 1922) Xie and Yokota 2005	homotypic synonym, validly published under the ICNP

• Notes:
  • ❗ Simonsiella crassa 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 authority of the taxon name (Schmid) deliberately differs from the author of the publication (Simons).
  • 😷 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 3 times in PubMed until 2026-06-11.

Parent taxon: Simonsiella Schmid 1922 (Approved Lists 1980)

Assigned by: Simons H. Saprophytische Oscillarien des Menschen und der Tiere. Zentralblatt für Bakteriologie, Parasitenkunde, Infektionskrankheiten und Hygiene, Abteilung I 1922; 88:501-510.

Linking: To permanently link to this page, use https://doi.org/10.83108/rn.780926Copy to clipboardLink copied to clipboard

Record number: 780926