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

Category: Species

Proposed as: comb. nov.

Basonym: "Streptococcus parvulus" Weinberg et al. 1937

Etymology: par’vu.la. L. fem. adj. parvula, very small

Pronunciation (Latin), gender: lan-ke-fiel-DEL-la PAR-wu-la, feminine

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

Effective publication: 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. 🇩🇪

IJSEM list: Oren A, Garrity GM. Validation list no. 184. List of new names and new combinations previously effectively, but not validly, published. Int J Syst Evol Microbiol 2018; 68:3379-3393.

Nomenclatural status: validly published under the ICNP

Taxonomic status: correct name (and explicitly recommended for medical use)

Risk group: 2

• Synonyms:

  • Name	Kind
    Streptococcus parvulus (Weinberg et al. 1937) Cato 1983	homotypic synonym, validly published under the ICNP
    "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
    Atopobium parvulum (Weinberg et al. 1937) Collins and Wallbanks 1993	homotypic synonym, validly published under the ICNP

• Notes:
  • 🥇 Nomenclatural type of the genus Lancefieldella Nouioui et al. 2018. Publication: 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. 🇩🇪
  • 😷 The risk group for Belgium has been imported on 2024-02-05. The full classification is: risk group = 2, note = "human pathogen". — 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 6 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 the species itself. This name is not taxonomically suspended any more in favour of Atopobium parvulum (Weinberg et al. 1937) Collins and Wallbanks 1993. Publication: Collins MD, Wallbanks S. Comparative sequence analyses of the 16S rRNA genes of Lactobacillus minutus, Lactobacillus rimae and Streptococcus parvulus: proposal for the creation of a new genus Atopobium. FEMS Microbiol. Lett. 1992; 95:235-240. 🇬🇧 Anonymous. Validation list no. 44. Validation of publication of new names and new combinations previously effectively published outside the IJSB. Int J Syst Bacteriol 1993; 43:188-189.
  • 🧍 The genome of the type strain was sequenced as part of the GEBA (Genomic Encyclopedia of Bacteria and Archaea) project. Publication: Mukherjee S, Seshadri R, Varghese NJ, Eloe-Fadrosh EA, Meier-Kolthoff JP, Goker M, Coates RC, Hadjithomas M, Pavlopoulos GA, Paez-Espino D, et al. 1,003 reference genomes of bacterial and archaeal isolates expand coverage of the tree of life. Nat Biotechnol 2017; 35:676-683. 🇺🇸

Parent taxon: Lancefieldella Nouioui et al. 2018

Assigned by: 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. 🇩🇪

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Record number: 798324