Species ***Ruminococcus* *callidus***

Name: Ruminococcus callidus Holdeman and Moore 1974 (Approved Lists 1980)

Category: Species

Proposed as: sp. nov.

Etymology: cal’li.dus. L. masc. adj. callidus, clever, expert

Pronunciation (Latin), gender: ru-mi-no-KOK-kus KAL-li-dus, masculine

Type strain: ATCC 27760; VPI 57-31

Conduct genome-based taxonomy at

16S rRNA gene: L76596 Analyse FASTA

Effective publication: Holdeman LV, Moore WEC. New genus, Coprococcus, twelve new species, and emended descriptions of four previously described species of bacteria from human feces. International Journal of Systematic Bacteriology 1974; 24:260-277.

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: correct name (and explicitly recommended for medical use)

Risk group: 1

Notes:
- 😷 The risk group for Canada has been imported on 2024-02-27. The full classification is: risk group = 1, note = "Security sensitive biological agent: No - Terrestrial animal pathogen under Canadian Food Inspection Agency authority: No". — 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 2026-08-13. 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 38 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 other species in the genus.

Parent taxon: Ruminococcus Sijpesteijn 1948 (Approved Lists 1980)

Assigned by: Holdeman LV, Moore WEC. New genus, Coprococcus, twelve new species, and emended descriptions of four previously described species of bacteria from human feces. International Journal of Systematic Bacteriology 1974; 24:260-277.

Linking: To permanently link to this page, use https://doi.org/10.83108/rn.784834Link copied to clipboard

Record number: 784834

This LPSN page was printed on 2026-09-17 04:38:22

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Species Ruminococcus callidus

Species ***Ruminococcus* *callidus***