Name: "Candidatus Nitrosopumilus maritimus" Könneke et al. 2005

Category: Species

Proposed as: Candidatus

Etymology: ma.ri’ti.mus. L. masc. adj. maritimus, of the sea, marine, referring to Ursus maritimus from which the strains were isolated

Pronunciation, gender: ma-RI-ti-mus, masculine

Nomenclatural type: ATCC TSD-97; NCIMB 15022; SCM1

See detailed strain information at

Conduct genome-based taxonomy at

16S rRNA gene: DQ085097 Analyse FASTA

Effective publication: Konneke M, Bernhard AE, de la Torre JR, Walker CB, Waterbury JB, Stahl DA. Isolation of an autotrophic ammonia-oxidizing marine archaeon. Nature 2005; 437:543-546. 🇺🇸

IJSEM list: Oren A, Garrity GM, Parker CT, Chuvochina M, Trujillo ME. Candidatus list no. 1. Lists of names of prokaryotic Candidatus taxa. Int J Syst Evol Microbiol 2020; 70:3956-4042.

Nomenclatural status: not validly published

Nomenclatural pro-status: pro-validly published under the ICNP

Taxonomic status: synonym

Correct name: Nitrosopumilus maritimus Qin et al. 2017

Risk group: 1

• Synonyms:

  • Name	Kind
    Nitrosopumilus maritimus Qin et al. 2017	homotypic synonym, validly published under the ICNP

• Notes:
  • 🥇 Nomenclatural type of the genus "Candidatus Nitrosopumilus" Könneke et al. 2005. Publication: Konneke M, Bernhard AE, de la Torre JR, Walker CB, Waterbury JB, Stahl DA. Isolation of an autotrophic ammonia-oxidizing marine archaeon. Nature 2005; 437:543-546. 🇺🇸
  • ❗ "Candidatus Nitrosopumilus maritimus" is the pro-correct name instead if this species is regarded as a separate species (i.e., if its nomenclatural type is not assigned to another species whose name is validly published and legitimate or pro-validly published and pro-legitimate and not rejected and has priority or pro-priority) within a separate genus "Candidatus Nitrosopumilus".
  • 😷 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.
  • 🧍 This species was confirmed as the type species of its monotypic genus in Appendix 1 of Candidatus List No. 6.

Parent taxon: "Candidatus Nitrosopumilus" Könneke et al. 2005

Assigned by: Konneke M, Bernhard AE, de la Torre JR, Walker CB, Waterbury JB, Stahl DA. Isolation of an autotrophic ammonia-oxidizing marine archaeon. Nature 2005; 437:543-546. 🇺🇸

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Record number: 946