Name: Halothiobacillus neapolitanus (Parker 1957) Kelly and Wood 2000

Category: Species

Proposed as: comb. nov.

Basonym: Thiobacillus neapolitanus Parker 1957 (Approved Lists 1980)

Etymology: ne.a.po.li.ta’nus. N.L. masc. adj. neapolitanus, Neapolitan, pertaining to the seawater at Naples from which this species was probably first isolated by Nathansohn in 1902

Gender: masculine

Type strain: CIP 104769; DSM 15147; NCIB 8539; NCIMB 8539; Parker strain X

See detailed strain information at

Conduct genome-based taxonomy at

16S rRNA gene: JN175334 Analyse FASTA

Valid publication: Kelly DP, Wood AP. Reclassification of some species of Thiobacillus to the newly designated genera Acidithiobacillus gen. nov., Halothiobacillus gen. nov. and Thermithiobacillus gen. nov. Int J Syst Evol Microbiol 2000; 50:511-516.

IJSEM list: Anonymous. Notification list. Notification that new names and new combinations have appeared in volume 50, part 2 of the IJSEM. Int J Syst Evol Microbiol 2000; 50:951-953.

Nomenclatural status: validly published under the ICNP

Taxonomic status: correct name

Risk group: 1

• Synonyms:

  • Name	Kind
    Thiobacillus neapolitanus Parker 1957 (Approved Lists 1980)	homotypic synonym, validly published under the ICNP

• Emendations:
  • Boden 2017 Boden R. Reclassification of Halothiobacillus hydrothermalis and Halothiobacillus halophilus to Guyparkeria gen. nov. in the Thioalkalibacteraceae fam. nov., with emended descriptions of the genus Halothiobacillus and family Halothiobacillaceae. Int J Syst Evol Microbiol 2017; 67:3919-3928. Oren A, Garrity GM. Notification list. Notification that new names and new combinations have appeared in volume 67, part 10 of the IJSEM. Int J Syst Evol Microbiol 2018; 68:3-6.

• Notes:
  • 🥇 Nomenclatural type of the genus Halothiobacillus Kelly and Wood 2000. Publication: Kelly DP, Wood AP. Reclassification of some species of Thiobacillus to the newly designated genera Acidithiobacillus gen. nov., Halothiobacillus gen. nov. and Thermithiobacillus gen. nov. Int J Syst Evol Microbiol 2000; 50:511-516.
  • 📧 The e-mail address of the corresponding author given in the effective publication is not functional any more.
  • 😷 The risk group for Canada has been imported on 2024-02-27. The full classification is: risk group = 1, note = "Animal classification RG: 1 - Security sensitive biological agent: No - Terrestrial animal pathogen under Canadian Food Inspection Agency authority: No - Containment level: Containment Level 1". — The risk group for Swiss Confederation has been imported on 2024-02-01. The full classification is: risk group = 1. — The risk group for Germany has been imported on 2023-10-29. The full classification is: risk group = 1. — 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 53 times in PubMed until 2025-06-04.
  • 🧍 In the paper by Kelly and Wood 2000, the type strain is erroneously cited as DSM 581. — Kracht M. Personal communication, 2003-04-26.

Parent taxon: Halothiobacillus Kelly and Wood 2000

Assigned by: Kelly DP, Wood AP. Reclassification of some species of Thiobacillus to the newly designated genera Acidithiobacillus gen. nov., Halothiobacillus gen. nov. and Thermithiobacillus gen. nov. Int J Syst Evol Microbiol 2000; 50:511-516.

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Record number: 776828