Name: Bacteroides fragilis (Veillon and Zuber 1898) Castellani and Chalmers 1919 (Approved Lists 1980)
Category, proposed as: species, comb. nov.
Basonym: "Bacillus fragilis" Veillon and Zuber 1898
Etymology: fra’gi.lis. L. masc. adj. fragilis, easily broken, brittle, fragile (relating to the brittle colonies that may form under some culture conditions)
Pronunciation (Latin), gender: bak-ter-o-I-des FRA-gi-lis, masculine
Type strain: ATCC 25285; CCUG 4856; CIP 77.16; DSM 2151; DSM 29413; JCM 11019; LMG 10263; NBIMCC 8847; NCTC 9343
Conduct genome-based taxonomy at
16S rRNA gene:
KP326374
Analyse
FASTA
Effective publication: Castellani A, Chalmers AJ. Manual of Tropical Medicine, 3rd ed. Williams Wood and Co., New York, 1919.
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)
| Name | Kind |
|---|---|
| Bacteroides hominis Liu et al. 2022 | heterotypic synonym, validly published under the ICNP |
| "Bacteroides hominis" Afrizal et al. 2022 | heterotypic synonym, not validly published |
| "Bacillus fragilis" Veillon and Zuber 1898 | homotypic synonym, not validly published, basonym of name in Approved Lists |
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Oren A, Garrity GM. List of changes in taxonomic opinion no. 26. Notification of changes in taxonomic opinion previously published outside the IJSEM. Int J Syst Evol Microbiol 2017; 67:2081-2086.
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Oren A, Garrity GM. Validation list no. 205. List of new names and new combinations previously effectively, but not validly, published. Int J Syst Evol Microbiol 2022; 72:5331.
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Number of child taxa with a validly published and correct name: 0
Number of child taxa with a validly published name, including synonyms: 0
Total number of child taxa: 2
| Name | Nomenclatural status | Taxonomic status |
|---|---|---|
| "Bacteroides fragilis subsp. distasonis" Falkler and Burger 1981 | not validly published | preferred name |
| "Bacteroides fragilis subsp. thetaiotaomicron" (Distaso 1912) Holdeman and Moore 1970 | not validly published | synonym |
Parent taxon: Bacteroides Castellani and Chalmers 1919 (Approved Lists 1980)
Assigned by: Castellani A, Chalmers AJ. Manual of Tropical Medicine, 3rd ed. Williams Wood and Co., New York, 1919.
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