Species Streptococcus parvulus

Name: Streptococcus parvulus (Weinberg et al. 1937) Cato 1983

Category: Species

Proposed as: comb. nov.

Basonym: "Streptococcus parvulus" Weinberg et al. 1937

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

Pronunciation (Latin), gender: strep-to-KOK-kus PAR-wu-lus, masculine

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

Conduct genome-based taxonomy at

16S rRNA gene: AB558168 Analyse FASTA

Valid publication: Cato EP. Transfer of Peptostreptococcus parvulus (Weinberg, Nativelle, and Prévot 1937) Smith 1957 to the genus Streptococcus: Streptococcus parvulus (Weinberg, Nativelle, and Prévot 1937) comb. nov., nom. rev., emend. Int. J. Syst. Bacteriol. 1983; 33:82-84.

Nomenclatural status: validly published under the ICNP

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

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
Peptostreptococcus parvulus (Weinberg et al. 1937) Smith 1957 (Approved Lists 1980)	homotypic synonym, validly published under the ICNP
Lancefieldella parvula (Weinberg et al. 1937) Nouioui et al. 2018	homotypic synonym, validly published under the ICNP
Atopobium parvulum (Weinberg et al. 1937) Collins and Wallbanks 1993	homotypic synonym, validly published under the ICNP

Emendations:
- Olsen et al. 1991 Olsen I, Johnson JL, Moore LV, Moore WE. Lactobacillus uli sp. nov. and Lactobacillus rimae sp. nov. from the human gingival crevice and emended descriptions of lactobacillus minutus and Streptococcus parvulus. Int J Syst Bacteriol 1991; 41:261-266. 🇺🇸
  Notes:
  - 🧍 This emendation was not found in the expected IJSEM notification list.

Notes:
- ❗ Streptococcus 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 Streptococcus.
- 😷 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. — 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 4 times in PubMed until 2026-06-11.
- 🙅 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 species itself.

Parent taxon: Streptococcus Rosenbach 1884 (Approved Lists 1980)

Assigned by: Cato EP. Transfer of Peptostreptococcus parvulus (Weinberg, Nativelle, and Prévot 1937) Smith 1957 to the genus Streptococcus: Streptococcus parvulus (Weinberg, Nativelle, and Prévot 1937) comb. nov., nom. rev., emend. Int. J. Syst. Bacteriol. 1983; 33:82-84.

Linking: To permanently link to this page, use https://doi.org/10.83108/rn.781370Link copied to clipboard

Record number: 781370

This LPSN page was printed on 2026-08-13 07:02:49

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Species Streptococcus parvulus