Species Anaerorhabdus furcosa

Name: Anaerorhabdus furcosa corrig. (Veillon and Zuber 1898) Shah and Collins 1986

Category, proposed as: species, comb. nov.

Basonym: "Bacillus furcosus" Veillon and Zuber 1898

Etymology: fur.co’sa. L. fem. adj. furcosa, full of forks, forked (pertaining to cell shape)

Pronunciation (Latin), gender: an-a-e-ro-R^HAB-dus fur-KO-sa, feminine

Type strain: ATCC 25662; VPI 3253

Conduct genome-based taxonomy at

16S rRNA gene: GU585668 Analyse FASTA

Effective publication: Shah HN, Collins MD. Reclassification of Bacteroides furcosus Veillon and Zuber (Hauduroy, Ehringer, Urbain, Guillot and Magrou) in a new genus Anaerorhabdus, as Anaerorhabdus furcosus comb. nov. Syst. Appl. Microbiol. 1986; 8:86-88. 🇬🇧

IJSEM list: Anonymous. Validation list no. 22. Validation of publication of new names and new combinations previously effectively published outside the IJSB. Int J Syst Bacteriol 1986; 36:573-576.

Nomenclatural status: validly published under the ICNP

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

Risk group: 2

• Synonyms:

  • Name	Kind
    Bacteroides furcosus (Veillon and Zuber 1898) Hauduroy et al. 1937 (Approved Lists 1980)	homotypic synonym, validly published under the ICNP
    Anaerorhabdus furcosus (Veillon and Zuber 1898) Shah and Collins 1986	other spelling of name, inaccurate spelling
    "Bacillus furcosus" Veillon and Zuber 1898	homotypic synonym, not validly published, basonym of name in Approved Lists

• Notes:
  • 🥇 Nomenclatural type of the genus Anaerorhabdus Shah and Collins 1986. Publication: Shah HN, Collins MD. Reclassification of Bacteroides furcosus Veillon and Zuber (Hauduroy, Ehringer, Urbain, Guillot and Magrou) in a new genus Anaerorhabdus, as Anaerorhabdus furcosus comb. nov. Syst. Appl. Microbiol. 1986; 8:86-88. 🇬🇧
  • 😷 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 Germany has been imported on 2026-08-13. 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 11 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.
  • 🧍 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. 🇬🇧
  • 🧍 The original spelling of the specific epithet, furcosus (sic), has been corrected by Euzéby and Boemare 2000. Publication: Euzeby JP, Boemare NE. The modern Latin word rhabdus belongs to the feminine gender, inducing necessary corrections according to Rules 65(2), 12c(1) and 13b of the Bacteriological Code (1990 Revision). Int J Syst Evol Microbiol 2000; 50:1691-1692. 🇫🇷
  • 🧍 Yarza et al. (2013) expected for accession GU585668, originating from the alleged type-strain deposit ATCC 25662, an affiliation with Bacteroidaceae (Bacteroidetes) but observed an affiliation with Erysipelotrichaceae (Firmicutes) and 91.6% similarity against Holdemania filiformis. Publication: Yarza P, Sproer C, Swiderski J, Mrotzek N, Spring S, Tindall BJ, Gronow S, Pukall R, Klenk HP, Lang E, et al. Sequencing orphan species initiative (SOS): Filling the gaps in the 16S rRNA gene sequence database for all species with validly published names. Syst Appl Microbiol 2013; 36:69-73. 🇩🇪
  • 🧍 Nom. corrig.: IJSEM 50:1691; Anaerorhabdus furcosus (sic). Publication: Euzeby JP, Boemare NE. The modern Latin word rhabdus belongs to the feminine gender, inducing necessary corrections according to Rules 65(2), 12c(1) and 13b of the Bacteriological Code (1990 Revision). Int J Syst Evol Microbiol 2000; 50:1691-1692. 🇫🇷

Parent taxon: Anaerorhabdus Shah and Collins 1986

Assigned by: Shah HN, Collins MD. Reclassification of Bacteroides furcosus Veillon and Zuber (Hauduroy, Ehringer, Urbain, Guillot and Magrou) in a new genus Anaerorhabdus, as Anaerorhabdus furcosus comb. nov. Syst. Appl. Microbiol. 1986; 8:86-88. 🇬🇧

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Record number: 783371