Name: Actinarchaeum corrig. Tang et al. 2024

Category: Genus

Proposed as: gen. nov.

Etymology: Ac.tin.ar.chae’um. Gr. fem. n. aktis, a ray; N.L. neut. n. archaeum, archaeon; from Gr. masc. adj. archaîos, ancient; N.L. neut. n. Actinarchaeum, ray archaeon, referring to the radial arrangement of filaments

Gender, pronunciation (Latin): neuter (stem: Actinarchae-), ak-tin-ar-K^HA͡E-um

Type species: Actinarchaeum halophilum corrig. Tang et al. 2024

Effective publication: Tang SK, Zhi XY, Zhang Y, Makarova KS, Liu BB, Zheng GS, Zhang ZP, Zheng HJ, Wolf YI, Zhao YR, et al. Cellular differentiation into hyphae and spores in halophilic archaea. Nat Commun 2023; 14:1827. 🇨🇳

IJSEM list: Oren A, Göker M. Validation list no. 215. List of new names and new combinations previously effectively, but not validly, published. Int J Syst Evol Microbiol 2024; 74:6173.

Nomenclatural status: validly published under the ICNP

Taxonomic status: synonym

Correct name: Halocatena Verma et al. 2020

• Synonyms:

  • Name	Kind
    Halocatena Verma et al. 2020	heterotypic synonym, validly published under the ICNP
    Actinoarchaeum Tang et al. 2024	other spelling of name, inaccurate spelling

• Notes:
  • 🚂 For the type species of this genus another name is in use, which is affiliated with the genus Halocatena Verma et al. 2020. Publication: Zhu LR, Mao YL, Hu Y, Sun YP, Hou J, Cui HL. Genome-based taxonomy of the family Haloarculaceae, proposal of Natronomonadaceae fam. nov., and description of four novel halophilic archaea from two saline lakes and a marine solar saltern. Syst Appl Microbiol 2025; 48:126592. 🇨🇳
  • 🚋 The type species of this genus has alternatively been placed in the genus Actinoarchaeum Tang et al. 2024. Publication: Tang SK, Zhi XY, Zhang Y, Makarova KS, Liu BB, Zheng GS, Zhang ZP, Zheng HJ, Wolf YI, Zhao YR, et al. Cellular differentiation into hyphae and spores in halophilic archaea. Nat Commun 2023; 14:1827. 🇨🇳
  • ❗ Actinarchaeum is the correct name instead if this genus is regarded as a separate genus (i.e., if its nomenclatural type is not assigned to another genus whose name is validly published, legitimate and not rejected and has priority).
  • 🎰 The BRCs most frequently used for deposits in this group are: DSM: 1; CGMCC: 1.

Subdivision:

Number of child taxa with a validly published and correct name: 0
Number of child taxa with a validly published name, including synonyms: 1
Total number of child taxa: 1

• Child taxa:

  • Name	Nomenclatural status	Taxonomic status
    Actinarchaeum halophilum corrig. Tang et al. 2024	validly published under the ICNP	synonym

Parent taxon: Halobacteriaceae Gibbons 1974 (Approved Lists 1980)

Assigned by: Tang SK, Zhi XY, Zhang Y, Makarova KS, Liu BB, Zheng GS, Zhang ZP, Zheng HJ, Wolf YI, Zhao YR, et al. Cellular differentiation into hyphae and spores in halophilic archaea. Nat Commun 2023; 14:1827. 🇨🇳

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Record number: 43641