Name: Collinsella stercoris Kageyama and Benno 2000

Category: Species

Proposed as: sp. nov.

Etymology: ster’co.ris. L. neut. n. stercus, faeces; L. gen. neut. n. stercoris, of faeces, referring to the source of the isolate

Gender: feminine

Type strain: CCUG 45295; CIP 106913; DSM 13279; JCM 10641; RCA55-54

See detailed strain information at

Conduct genome-based taxonomy at

16S rRNA gene: AB558488 Analyse FASTA

Valid publication: Kageyama A, Benno Y. Emendation of genus Collinsella and proposal of Collinsella stercoris sp. nov. and Collinsella intestinalis sp. nov. Int J Syst Evol Microbiol 2000; 50:1767-1774.

IJSEM list: Anonymous. Notification list. Notification that new names and new combinations have appeared in volume 50, part 5 of the IJSEM. Int J Syst Evol Microbiol 2000; 50:1955.

Nomenclatural status: validly published under the ICNP

Taxonomic status: correct name

Risk group: 1

• Emendations:
  • Nouioui et al. 2018 Nouioui I, Carro L, Garcia-Lopez M, Meier-Kolthoff JP, Woyke T, Kyrpides NC, Pukall R, Klenk HP, Goodfellow M, Goker M. Genome-Based Taxonomic Classification of the Phylum Actinobacteria. Front Microbiol 2018; 9:2007. Oren A, Garrity GM. List of changes in taxonomic opinion no. 29. Notification of changes in taxonomic opinion previously published outside the IJSEM. Int J Syst Evol Microbiol 2019; 69:13-32.

• Notes:
  • 😢 The terminology used by the authors is in line with many other taxonomic studies and does not negatively affect their main results; some improvements may nevertheless be possible. Using the term "phylogenetic data" (or equivalent) for sequence data is not advocated. Whether taxa can have "members" is debatable. See the LPSN phylogeny page for details. Publication: Göker M. What can genome analysis offer for bacteria? In: Bridge P, Smith D, Stackebrandt E (eds), Trends in the systematics of bacteria and fungi, CAB International, Wallingford, 2021, p. 255-281.
  • 😷 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 Germany has been imported on 2023-10-29. The full classification is: risk group = 1.
  • 🎓 Name mentioned 7 times in PubMed until 2024-03-27.
  • 🧍 According to Bartlett et al. (2022), this species was isolated from feces in healthy individuals. Publication: Bartlett A, Padfield D, Lear L, Bendall R, Vos M. A comprehensive list of bacterial pathogens infecting humans. Microbiology 2022; 168:0.

Parent taxon: Collinsella Kageyama et al. 1999

Assigned by: Kageyama A, Benno Y. Emendation of genus Collinsella and proposal of Collinsella stercoris sp. nov. and Collinsella intestinalis sp. nov. Int J Syst Evol Microbiol 2000; 50:1767-1774.

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Record number: 775057