Name: Peptoniphilus tyrrelliae Citron et al. 2013

Category: Species

Proposed as: sp. nov.

Etymology: tyr.rel.li’a.e. N.L. gen. fem. n. tyrrelliae, of Tyrrell, named by the other authors after Kerin L. Tyrrell, for her contributions in anaerobic bacteriology to the R.M. Alden Research Lab

Gender: masculine

Type strain: ATCC BAA-2105; CCUG 59621; JCM 16893; RMA 19911

See detailed strain information at

Conduct genome-based taxonomy at

16S rRNA gene: GU938835 Analyse FASTA

Effective publication: Citron DM, Tyrrell KL, Goldstein EJ. Peptoniphilus coxii sp. nov. and Peptoniphilus tyrrelliae sp. nov. isolated from human clinical infections. Anaerobe 2012; 18:244-248.

IJSEM list: Euzeby JP. Validation list no. 149. List of new names and new combinations previously effectively, but not validly, published. Int J Syst Evol Microbiol 2013; 63:1-5.

Nomenclatural status: validly published under the ICNP

Taxonomic status: correct name

Risk group: 2

• Synonyms:

  • Name	Kind
    Peptoniphilus senegalensis Mishra et al. 2016	heterotypic synonym, validly published under the ICNP

• Notes:
  • According to Aujoulat et al. (2021), this species is an earlier heterotypic synonym of Peptoniphilus senegalensis Mishra et al. 2016. Publication: Aujoulat F, Mazuet C, Criscuolo A, Popoff MR, Enault C, Diancourt L, Jumas-Bilak E, Lavigne JP, Marchandin H. Peptoniphilus nemausensis sp. nov. A new Gram-positive anaerobic coccus isolated from human clinical samples, an emendated description of the genus Peptoniphilus and an evaluation of the taxonomic status of Peptoniphilus species with not validly published names. Syst Appl Microbiol 2021; 44:126235.
  • Synonymy of this taxon was mentioned in an IJSEM list. Publication: Oren A, Garrity GM. List of changes in taxonomic opinion no. 35. Notification of changes in taxonomic opinion previously published outside the IJSEM. Int J Syst Evol Microbiol 2022; 72:5164.
  • According to Bartlett et al. (2022), this species is an established human pathogen. Publication: Bartlett A, Padfield D, Lear L, Bendall R, Vos M. A comprehensive list of bacterial pathogens infecting humans. Microbiology 2022; 168:0.
  • The epithet tyrrelliae is not in accordance with the Recommendation 6(10) of the Bacteriological Code. Publication: Euzeby JP. Validation list no. 149. List of new names and new combinations previously effectively, but not validly, published. Int J Syst Evol Microbiol 2013; 63:1-5.

Parent taxon: Peptoniphilus Ezaki et al. 2001

Assigned by: Citron DM, Tyrrell KL, Goldstein EJ. Peptoniphilus coxii sp. nov. and Peptoniphilus tyrrelliae sp. nov. isolated from human clinical infections. Anaerobe 2012; 18:244-248.

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Record number: 790368