Name: "Murraya grayi" (Errebo Larsen and Seeliger 1966) Stuart and Welshimer 1971

Category: Species

Proposed as: comb. nov.

Basonym: Listeria grayi Errebo Larsen and Seeliger 1966 (Approved Lists 1980)

Etymology: gray’i. N.L. gen. masc. n. grayi, of Gray, named in honor of M.L. Gray, an American bacteriologist

Pronunciation, gender: GRAY-i, feminine

Nomenclatural type: ATCC 19120; CCUG 4983; CCUG 5118; CIP 105447; CIP 68.18; DSM 20601; LMG 16490; NCAIM B.01871; NCTC 10815

Conduct genome-based taxonomy at

16S rRNA gene: X56150 Analyse FASTA

Original publication: Stuart E, Welshimer HJ. Taxonomic reexamination of Listeria Pirie and transfer of Listeria grayi and Listeria murmyi to a new genus Murraya. Int. J. Syst. Bacteriol. 1971; 24:177-185.

Nomenclatural status: not validly published

Taxonomic status: synonym (and no standing)

Correct name: Listeria grayi Errebo Larsen and Seeliger 1966 (Approved Lists 1980)

Risk group: 2

• Synonyms:

  • Name	Kind
    "Murraya grayi" (Errebo Larsen and Seeliger 1966) Bouznada et al. 2025	homotypic synonym, not validly published
    Listeria grayi Errebo Larsen and Seeliger 1966 (Approved Lists 1980)	homotypic synonym, validly published under the ICNP

• Notes:
  • 🥇 Nomenclatural type of the genus "Murraya" Stuart and Welshimer 1971. Publication: Stuart E, Welshimer HJ. Taxonomic reexamination of Listeria Pirie and transfer of Listeria grayi and Listeria murmyi to a new genus Murraya. Int. J. Syst. Bacteriol. 1971; 24:177-185.
  • ⏰ According to Rocourt et al. (1992), this species is an earlier heterotypic synonym of Listeria murrayi Welshimer and Meredith 1971 (Approved Lists 1980). Publication: Rocourt J, Boerlin P, Grimont F, Jacquet C, Piffaretti JC. Assignment of Listeria grayi and Listeria murrayi to a single species, Listeria grayi, with a revised description of Listeria grayi. Int J Syst Bacteriol 1992; 42:171-174.
  • ⏰ According to Rocourt et al. (1992), this species is an earlier heterotypic synonym of "Murraya murrayi" (Welshimer and Meredith 1971) Bouznada et al. 2025. Publication: Rocourt J, Boerlin P, Grimont F, Jacquet C, Piffaretti JC. Assignment of Listeria grayi and Listeria murrayi to a single species, Listeria grayi, with a revised description of Listeria grayi. Int J Syst Bacteriol 1992; 42:171-174.
  • ⏰ According to Sallen et al. (1996), this species is not an earlier heterotypic synonym of Listeria murrayi Welshimer and Meredith 1971 (Approved Lists 1980). Publication: Sallen B, Rajoharison A, Desvarenne S, Quinn F, Mabilat C. Comparative analysis of 16S and 23S rRNA sequences of Listeria species. Int J Syst Bacteriol 1996; 46:669-674.
  • ⏰ According to Sallen et al. (1996), this species is not an earlier heterotypic synonym of "Murraya murrayi" (Welshimer and Meredith 1971) Bouznada et al. 2025. Publication: Sallen B, Rajoharison A, Desvarenne S, Quinn F, Mabilat C. Comparative analysis of 16S and 23S rRNA sequences of Listeria species. Int J Syst Bacteriol 1996; 46:669-674.
  • 😷 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". — 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.

Parent taxon: "Murraya" Stuart and Welshimer 1971

Assigned by: Stuart E, Welshimer HJ. Taxonomic reexamination of Listeria Pirie and transfer of Listeria grayi and Listeria murmyi to a new genus Murraya. Int. J. Syst. Bacteriol. 1971; 24:177-185.

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Record number: 68554