Name: Haloquadratum walsbyi Burns et al. 2007

Category: Species

Proposed as: sp. nov.

Etymology: wals’by.i. N.L. gen. masc. n. walsbyi, of Walsby, named after A. E. Walsby, who first published observations on this organism

Pronunciation, gender: WALS-by-i, neuter

Type strain: C23; DSM 16854; JCM 12705

See detailed strain information at

Conduct genome-based taxonomy at

16S rRNA gene: AB663398 Analyse FASTA

Valid publication: Burns DG, Janssen PH, Itoh T, Kamekura M, Li Z, Jensen G, Rodriguez-Valera F, Bolhuis H, Dyall-Smith ML. Haloquadratum walsbyi gen. nov., sp. nov., the square haloarchaeon of Walsby, isolated from saltern crystallizers in Australia and Spain. Int J Syst Evol Microbiol 2007; 57:387-392.

IJSEM list: Euzeby JP. Notification list. Notification that new names and new combinations have appeared in volume 57, part 2 of the IJSEM. Int J Syst Evol Microbiol 2007; 57:898-899.

Nomenclatural status: validly published under the ICNP

Taxonomic status: correct name

Risk group: 1

• Notes:
  • 🥇 Nomenclatural type of the genus Haloquadratum Burns et al. 2007. Publication: Burns DG, Janssen PH, Itoh T, Kamekura M, Li Z, Jensen G, Rodriguez-Valera F, Bolhuis H, Dyall-Smith ML. Haloquadratum walsbyi gen. nov., sp. nov., the square haloarchaeon of Walsby, isolated from saltern crystallizers in Australia and Spain. Int J Syst Evol Microbiol 2007; 57:387-392.
  • 😢 The terminology used by the authors is in line with many other taxonomic studies and does not negatively affect their main results; some improvements may nevertheless be possible. Using the term "phylogenetic data" (or equivalent) for sequence data is not advocated. Whether taxa can have "members" is debatable. See the LPSN phylogeny page for details. Publication: Göker M. What can genome analysis offer for bacteria? In: Bridge P, Smith D, Stackebrandt E (eds), Trends in the systematics of bacteria and fungi, CAB International, Wallingford, 2021, p. 255-281.
  • 😷 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 64 times in PubMed until 2025-06-04.

Parent taxon: Haloquadratum Burns et al. 2007

Assigned by: Burns DG, Janssen PH, Itoh T, Kamekura M, Li Z, Jensen G, Rodriguez-Valera F, Bolhuis H, Dyall-Smith ML. Haloquadratum walsbyi gen. nov., sp. nov., the square haloarchaeon of Walsby, isolated from saltern crystallizers in Australia and Spain. Int J Syst Evol Microbiol 2007; 57:387-392.

Linking: To permanently link to this page, use https://lpsn.dsmz.de/species/haloquadratum-walsbyiCopy to clipboardLink copied to clipboard

Record number: 785915