Name: Edwardsiella anguillimortifera (Hoshina 1962) Sakazaki and Tamura 1975 (Approved Lists 1980)

Category: Species

Proposed as: comb. nov.

Basonym: "Paracolobactrum anguillimortiferum" Hoshina 1962

Etymology: an.guil.li.mor.ti’fe.ra. L. fem. n. anguilla, eel; L. fem. adj. mortifera, death-bringing, death-dealing, deadly, fatal; N.L. fem. adj. anguillimortifera, fatal for eels

Pronunciation, gender: an-gu͡il-li-mor-TI-fe-ra, feminine

Type strain: ATCC 15947; CCUG 1638; CIP 78.61; DSM 13696; DSM 30052; JCM 1656; LMG 2793; NCCB 73021; NCTC 10396

See detailed strain information at

Conduct genome-based taxonomy at

16S rRNA gene: AB050827 Analyse FASTA

Effective publication: Sakazaki R, Tamura K. Priority of the specific epithet anguillimortiferum over the specific epithet tarda in the name of the organism presently known as Edwardsiella tarda. International Journal of Systematic Bacteriology 1975; 25:219-220.

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, illegitimate name

Taxonomic status: synonym (and not recommended for medical use)

Correct name: Edwardsiella tarda Ewing and McWhorter 1965 (Approved Lists 1980)

Risk group: 2

• Synonyms:

  • Name	Kind
    "Paracolobactrum anguillimortiferum" Hoshina 1962	homotypic synonym, not validly published, basonym of name in Approved Lists
    Edwardsiella tarda Ewing and McWhorter 1965 (Approved Lists 1980)	homotypic synonym, validly published under the ICNP

• Notes:
  • 😷 The risk group for Belgium has been imported on 2024-02-05. The full classification is: risk group = 2, note = "human and animal pathogen - human risk group: 2 - animal risk group: 3 - biological class of risk animal: 3". — The risk group for Canada has been imported on 2024-02-27. The full classification is: risk group = 2, note = "Animal classification RG: 2 - Security sensitive biological agent: No - Terrestrial animal pathogen under Canadian Food Inspection Agency authority: No - Containment level: Containment Level 2". — The risk group for Swiss Confederation has been imported on 2024-02-01. The full classification is: risk group = 2, note = "PV". — The risk group for Germany has been imported on 2023-10-29. The full classification is: risk group = 2, note = "ht". — 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 1 time in PubMed until 2025-06-04.
  • 🙅 This name is on the List of Recommended Names for bacteria of medical importance (LoRN) as a synonym of the name to be applied to this species. The name is on LoRN because of the recorded risk group of the species itself.
  • 🧍 Illegitimate according to IJSEM 66:4910-4912 (Taxonomic Note by B. Tindall); type (description and illustration by Hoshina [1962]) not the same as of Edwardsiella tarda. Publication: Tindall BJ. On the synonymy of Edwardsiellatarda Ewing and McWhorter 1965 (Approved Lists 1980) and Edwardsiellaanguillimortifera (Hoshina 1962) Sakazaki and Tamura 1975 (Approved Lists 1980), an old problem in need of a solution. Int J Syst Evol Microbiol 2016; 66:4910-4912.
  • 🧍 Consequently, the two names remain homotypic synonyms [3]. Publication: De Vos P, Trüper HG, Tindall BJ. Judicial Commission of the International Committee on Systematics of Prokaryotes Xth International (IUMS) Congress of Bacteriology and Applied Microbiology. Minutes of the meetings, 28, 29 and 31 July and 1 August 2002, Paris, France. Int. J. Syst. Evol. Microbiol. 2005; 55:525-532.
  • 🧍 Edwardsiella anguillimortifera (Hoshina 1962) Sakazaki and Tamura 1975 (Approved Lists 1980) and Edwardsiella tarda Ewing and McWhorter 1965 (Approved Lists 1980) have the same type strain and Edwardsiella anguillimortifera (Hoshina 1962) Sakazaki and Tamura 1975 (Approved Lists 1980) is the earlier synonym. However, Farmer et al. 1976 [1] have submitted a Request for an Opinion to conserve the specific epithet tarda over the specific epithet anguillimortifera. Publication: Farmer Iii JJ, Brenner DJ, Clark WA. Proposal to conserve the specific epithet tarda over the specific epithet anguillimortiferum in the name of the organism presently know as Edwardsiella tarda: Request for an Opinion. Int. J. Syst. Bacteriol. 1976; 26:293-294.
  • 🧍 No action was taken on the request, because the request has been withdrawn [2]. Publication: Holt JG. INTERNATIONAL COMMITTEE ON SYSTEMATIC BACTERIOLOGY, JUDICIAL COMMISSION: Minutes of the meeting, 3 September 1978, Munich, West Germany. Int. J. Syst. Bacteriol. 1979; 29:267-269.

Parent taxon: Edwardsiella Ewing and McWhorter 1965 (Approved Lists 1980)

Assigned by: Sakazaki R, Tamura K. Priority of the specific epithet anguillimortiferum over the specific epithet tarda in the name of the organism presently known as Edwardsiella tarda. International Journal of Systematic Bacteriology 1975; 25:219-220.

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Record number: 783754