Name: Octadecabacter arcticus Gosink et al. 1998

Category: Species

Proposed as: sp. nov.

Etymology: arc’ti.cus. L. masc. adj. arcticus, northern, arctic

Gender: masculine

Type strain: 238; CIP 106732; DSM 13978

See detailed strain information at

Conduct genome-based taxonomy at

16S rRNA gene: U73725 Analyse FASTA

Effective publication: Gosink J, Hewig RP, Staley JT. Octadecabacter arcticus gen. nov., sp. nov., nonpigmented, psychrophilic gas vacuolate bacteria from polar sea ice and water. Syst Appl Microbiol 1997; 20:356-365.

IJSEM list: Anonymous. Validation list no. 64. Validation of publication of new names and new combinations previously effectively published outside the IJSB. Int J Syst Bacteriol 1998; 48:327-328.

Nomenclatural status: validly published under the ICNP

Taxonomic status: correct name

Risk group: 1

• Emendations:
  • Billerbeck et al. 2015 Billerbeck S, Orchard J, Tindall BJ, Giebel HA, Brinkhoff T, Simon M. Description of Octadecabacter temperatus sp. nov., isolated from the southern North Sea, emended descriptions of the genus Octadecabacter and its species and reclassification of Octadecabacter jejudonensisPark and Yoon 2014 as Pseudooctadecabacter jejudonensis gen. nov., comb. nov. Int J Syst Evol Microbiol 2015; 65:1967-1974. Oren A, Garrity GM. Notification list. Notification that new names and new combinations have appeared in volume 65, part 6 of the IJSEM. Int J Syst Evol Microbiol 2015; 65:2784-2785.
  • Hördt et al. 2020 Hordt A, Lopez MG, Meier-Kolthoff JP, Schleuning M, Weinhold LM, Tindall BJ, Gronow S, Kyrpides NC, Woyke T, Goker M. Analysis of 1,000+ Type-Strain Genomes Substantially Improves Taxonomic Classification of Alphaproteobacteria. Front Microbiol 2020; 11:468. Oren A, Garrity GM. List of changes in taxonomic opinion no. 32. Notification of changes in taxonomic opinion previously published outside the IJSEM. Int J Syst Evol Microbiol 2020; 70:4061-4090.

• Notes:
  • Nomenclatural type of the genus Octadecabacter Gosink et al. 1998. Publication: Gosink J, Hewig RP, Staley JT. Octadecabacter arcticus gen. nov., sp. nov., nonpigmented, psychrophilic gas vacuolate bacteria from polar sea ice and water. Syst Appl Microbiol 1997; 20:356-365.
  • In Validation List no. 64, the title of the paper by Gosink et al. 1997 is erroneously cited as follows: Octadecabacter arcticus gen. nov., sp. nov., nonpigmented, psychrophilic gas vacuolate bacteria from polar sea ice and water. Publication: Anonymous. Validation list no. 64. Validation of publication of new names and new combinations previously effectively published outside the IJSB. Int J Syst Bacteriol 1998; 48:327-328.

Parent taxon: Octadecabacter Gosink et al. 1998

Assigned by: Gosink J, Hewig RP, Staley JT. Octadecabacter arcticus gen. nov., sp. nov., nonpigmented, psychrophilic gas vacuolate bacteria from polar sea ice and water. Syst Appl Microbiol 1997; 20:356-365.

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Record number: 778964