Name: Hathewaya histolytica (Weinberg and Séguin 1916) Lawson and Rainey 2016

Category: Species

Proposed as: comb. nov.

Basonym: "Bacillus histolyticus" Weinberg and Séguin 1916

Etymology: his.to.ly’ti.ca. Gr. masc. n. histos, tissue; Gr. masc. adj. lytikos, dissolving; N.L. fem. adj. histolytica, tissue-dissolving

Gender: feminine

Type strain: ATCC 19401; BCRC 10644; CCRC 10644; CCUG 4854; CIP 103713; CN 1693; DSM 2158; JCM 1403; NCIB 503; NCIMB 503; NCTC 503

See detailed strain information at

Conduct genome-based taxonomy at

16S rRNA gene: AB566416 Analyse FASTA

Valid publication: Lawson PA, Rainey FA. Proposal to restrict the genus Clostridium Prazmowski to Clostridium butyricum and related species. Int J Syst Evol Microbiol 2016; 66:1009-1016.

IJSEM list: Oren A, Garrity GM. Notification list. Notification that new names and new combinations have appeared in volume 66, part 2 of the IJSEM. Int J Syst Evol Microbiol 2016; 66:1916-1919.

Nomenclatural status: validly published under the ICNP

Taxonomic status: correct name

Risk group: 2

• Synonyms:

  • Name	Kind
    "Bacillus histolyticus" Weinberg and Séguin 1916	homotypic synonym, not validly published, basonym of name in Approved Lists
    Clostridium histolyticum (Weinberg and Séguin 1916) Bergey et al. 1923 (Approved Lists 1980)	homotypic synonym, validly published under the ICNP

• Notes:
  • 🥇 Nomenclatural type of the genus Hathewaya Lawson and Rainey 2016. Publication: Lawson PA, Rainey FA. Proposal to restrict the genus Clostridium Prazmowski to Clostridium butyricum and related species. Int J Syst Evol Microbiol 2016; 66:1009-1016.
  • 😷 The risk group for Belgium has been imported on 2024-02-05. The full classification is: risk group = 2, note = "human and animal pathogen - biological class of risk animal: 2". — The risk group for Germany has been imported on 2023-10-29. The full classification is: risk group = 2.
  • 🎓 Name mentioned 7 times in PubMed until 2024-03-27.
  • 🧍 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.

Parent taxon: Hathewaya Lawson and Rainey 2016

Assigned by: Lawson PA, Rainey FA. Proposal to restrict the genus Clostridium Prazmowski to Clostridium butyricum and related species. Int J Syst Evol Microbiol 2016; 66:1009-1016.

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Record number: 793805