Name: Peptostreptococcus parvulus (Weinberg et al. 1937) Smith 1957 (Approved Lists 1980)

Category: Species

Proposed as: comb. nov.

Basonym: "Streptococcus parvulus" Weinberg et al. 1937

Etymology: par’vu.lus. L. masc. adj. parvulus, very small

Gender: masculine

Type strain: 1246; ATCC 33793; CCUG 32760; CIP 102970; DSM 20469; IPP 1246; JCM 10300; PI 0546; VPI 0546

See detailed strain information at

Conduct genome-based taxonomy at

16S rRNA gene: AB558168 Analyse FASTA

Effective publication: Smith LDS. Genus V. Peptostreptococcus Kluyver and van Niel, 1936,. In: Breed RS, Murray EGD, Smith NR (eds), Bergey's Manual of Determinative Bacteriology, 7th edition, The Williams & Wilkins Co, Baltimore, 1957, p. 533-541.

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: Lancefieldella parvula (Weinberg et al. 1937) Nouioui et al. 2018

Risk group: 2

• Synonyms:

  • Name	Kind
    "Streptococcus parvulus" Weinberg et al. 1937	homotypic synonym, not validly published, basonym of name in Approved Lists
    Atopobium parvulum (Weinberg et al. 1937) Collins and Wallbanks 1993	homotypic synonym, validly published under the ICNP
    Streptococcus parvulus (Weinberg et al. 1937) Cato 1983	homotypic synonym, validly published under the ICNP
    Lancefieldella parvula (Weinberg et al. 1937) Nouioui et al. 2018	homotypic synonym, validly published under the ICNP

• Notes:
  • ❗ Peptostreptococcus parvulus 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 Peptostreptococcus.
  • 😷 The risk group for Belgium has been imported on 2024-02-05. The full classification is: risk group = 2, note = "human pathogen". — The risk group for Canada has been imported on 2024-02-27. The full classification is: risk group = 2, note = "Animal classification RG: 1 - Security sensitive biological agent: No - Terrestrial animal pathogen under Canadian Food Inspection Agency authority: No - Containment level: Containment Level 2". — The risk group for Swiss Confederation has been imported on 2024-02-01. The full classification is: risk group = 2. — The risk group for Germany has been imported on 2023-10-29. The full classification is: risk group = 2.
  • 🎓 Name mentioned 1 time in PubMed until 2024-03-27.

Parent taxon: Peptostreptococcus Kluyver and van Niel 1936 (Approved Lists 1980)

Assigned by: Smith LDS. Genus V. Peptostreptococcus Kluyver and van Niel, 1936,. In: Breed RS, Murray EGD, Smith NR (eds), Bergey's Manual of Determinative Bacteriology, 7th edition, The Williams & Wilkins Co, Baltimore, 1957, p. 533-541.

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Record number: 779391