Name: Blautia coccoides (Kaneuchi et al. 1976) Liu et al. 2008

Category: Species

Proposed as: comb. nov.

Basonym: Clostridium coccoides Kaneuchi et al. 1976 (Approved Lists 1980)

Etymology: coc.co.i’des. N.L. masc. n. coccus, coccus; from Gr. masc. n. kokkos, grain, seed; L. adj. suff. -oides, ressembling, similar; from Gr. neut. adj. suff. -eides, resembling, similar; from Gr. neut. n. eîdos, that which is seen, form, shape, figure; N.L. fem. adj. coccoides, similar to a berry, berry-shaped

Pronunciation, gender: kok-ko-I-des, feminine

Type strain: ATCC 29236; DSM 935; JCM 1395; NCTC 11035

Conduct genome-based taxonomy at

16S rRNA gene: AB571656 Analyse FASTA

Valid publication: Liu C, Finegold SM, Song Y, Lawson PA. Reclassification of Clostridium coccoides, Ruminococcus hansenii, Ruminococcus hydrogenotrophicus, Ruminococcus luti, Ruminococcus productus and Ruminococcus schinkii as Blautia coccoides gen. nov., comb. nov., Blautia hansenii comb. nov., Blautia hydrogenotrophica comb. nov., Blautia luti comb. nov., Blautia producta comb. nov., Blautia schinkii comb. nov. and description of Blautia wexlerae sp. nov., isolated from human faeces. Int J Syst Evol Microbiol 2008; 58:1896-1902. 🇺🇸

IJSEM list: Euzeby JP. Notification list. Notification that new names and new combinations have appeared in volume 58, part 8 of the IJSEM. Int J Syst Evol Microbiol 2008; 58:2473-2474.

Nomenclatural status: validly published under the ICNP

Taxonomic status: synonym (and not recommended for medical use)

Correct name: Blautia producta (Prévot 1941) Liu et al. 2008

Risk group: 1

• Synonyms:

  • Name	Kind
    "Streptococcus productus" Prévot 1941	heterotypic synonym, not validly published, basonym of name in Approved Lists
    Ruminococcus productus (Prévot 1941) Ezaki et al. 1994	heterotypic synonym, validly published under the ICNP
    Peptostreptococcus productus (Prévot 1941) Smith 1957 (Approved Lists 1980)	heterotypic synonym, validly published under the ICNP
    Blautia producta (Prévot 1941) Liu et al. 2008	heterotypic synonym, validly published under the ICNP
    Clostridium coccoides Kaneuchi et al. 1976 (Approved Lists 1980)	homotypic synonym, validly published under the ICNP

• Notes:
  • 🥇 Nomenclatural type of the genus Blautia Liu et al. 2008. Publication: Liu C, Finegold SM, Song Y, Lawson PA. Reclassification of Clostridium coccoides, Ruminococcus hansenii, Ruminococcus hydrogenotrophicus, Ruminococcus luti, Ruminococcus productus and Ruminococcus schinkii as Blautia coccoides gen. nov., comb. nov., Blautia hansenii comb. nov., Blautia hydrogenotrophica comb. nov., Blautia luti comb. nov., Blautia producta comb. nov., Blautia schinkii comb. nov. and description of Blautia wexlerae sp. nov., isolated from human faeces. Int J Syst Evol Microbiol 2008; 58:1896-1902. 🇺🇸
  • ⏲ According to Fatahi-Bafghi (2025), this species is a later heterotypic synonym of "Streptococcus productus" Prévot 1941. Publication: Fatahi-Bafghi M. Genome-based reclassification of Blautia coccoides (Kaneuchi et al. 1976) Liu et al. 2008 as a later heterotypic synonym of Blautia producta (Prevot 1941) Liu et al. 2008. Int J Syst Evol Microbiol 2025; 75:6823. 🇮🇷
  • ⏲ According to Fatahi-Bafghi (2025), this species is a later heterotypic synonym of Peptostreptococcus productus (Prévot 1941) Smith 1957 (Approved Lists 1980). Publication: Fatahi-Bafghi M. Genome-based reclassification of Blautia coccoides (Kaneuchi et al. 1976) Liu et al. 2008 as a later heterotypic synonym of Blautia producta (Prevot 1941) Liu et al. 2008. Int J Syst Evol Microbiol 2025; 75:6823. 🇮🇷
  • ⏲ According to Fatahi-Bafghi (2025), this species is a later heterotypic synonym of Ruminococcus productus (Prévot 1941) Ezaki et al. 1994. Publication: Fatahi-Bafghi M. Genome-based reclassification of Blautia coccoides (Kaneuchi et al. 1976) Liu et al. 2008 as a later heterotypic synonym of Blautia producta (Prevot 1941) Liu et al. 2008. Int J Syst Evol Microbiol 2025; 75:6823. 🇮🇷
  • ⏲ According to Fatahi-Bafghi (2025), this species is a later heterotypic synonym of Blautia producta (Prévot 1941) Liu et al. 2008. Publication: Fatahi-Bafghi M. Genome-based reclassification of Blautia coccoides (Kaneuchi et al. 1976) Liu et al. 2008 as a later heterotypic synonym of Blautia producta (Prevot 1941) Liu et al. 2008. Int J Syst Evol Microbiol 2025; 75:6823. 🇮🇷
  • 🏢 Synonymy of this taxon was mentioned in an IJSEM list. Publication: Oren A, Göker M. Notification list. Notification that new names and new combinations have appeared in volume 75, part 7 of the IJSEM. Int J Syst Evol Microbiol 2025; 75:6893.
  • ❗ Blautia coccoides 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 Blautia.
  • 😷 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. — 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 65 times in PubMed until 2025-06-04.
  • 🙅 This name is on the List of Recommended Names for bacteria of medical importance (LoRN) as a synonym of the name to be applied to this species. The name is on LoRN because of the recorded risk group of the genus.
  • 🧍 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 (Reading) 2022; 168:0. 🇬🇧

Parent taxon: Blautia Liu et al. 2008

Assigned by: Liu C, Finegold SM, Song Y, Lawson PA. Reclassification of Clostridium coccoides, Ruminococcus hansenii, Ruminococcus hydrogenotrophicus, Ruminococcus luti, Ruminococcus productus and Ruminococcus schinkii as Blautia coccoides gen. nov., comb. nov., Blautia hansenii comb. nov., Blautia hydrogenotrophica comb. nov., Blautia luti comb. nov., Blautia producta comb. nov., Blautia schinkii comb. nov. and description of Blautia wexlerae sp. nov., isolated from human faeces. Int J Syst Evol Microbiol 2008; 58:1896-1902. 🇺🇸

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Record number: 787479