Name: Methanogenium marisnigri Romesser et al. 1981

Category: Species

Proposed as: sp. nov.

Etymology: ma.ris.ni’gri. L. neut. n. mare (gen. maris), the sea; L. adj. niger -gra -grum, black; N.L. gen. neut. n. marisnigri, of the Black Sea

Gender: neuter

Type strain: ATCC 35101; DSM 1498; JR1; OCM 56

See detailed strain information at

Conduct genome-based taxonomy at

16S rRNA gene: M59134 Analyse FASTA

Effective publication: Romesser JA, Wolfe RS, Mayer F, Spiess E, Walther-Mauruschat A. Methanogenium, a new genus of marine methanogenic bacteria, and characterization of Methanogenium cariaci sp. nov. and Methanogenium marisnigri sp. nov. Arch. Mikrobiol. 1979; 121:147-153.

IJSEM list: Anonymous. Validation list no. 6. Validation of publication of new names and new combinations previously effectively published outside the IJSB. Int J Syst Bacteriol 1981; 31:215-218.

Nomenclatural status: validly published under the ICNP

Taxonomic status: synonym

Correct name: Methanoculleus marisnigri (Romesser et al. 1981) Maestrojuán et al. 1990

Risk group: 1

• Synonyms:

  • Name	Kind
    Methanoculleus marisnigri (Romesser et al. 1981) Maestrojuán et al. 1990	homotypic synonym, validly published under the ICNP

• Notes:
  • ❗ Methanogenium marisnigri is the 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, legitimate and not rejected and has priority) within a separate genus Methanogenium.
  • 😷 The risk group for Canada has been imported on 2024-02-27. The full classification is: risk group = 1, note = "Security sensitive biological agent: No - Terrestrial animal pathogen under Canadian Food Inspection Agency authority: No". — 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.
  • 🎓 Name mentioned 1 time in PubMed until 2024-03-27.

Parent taxon: Methanogenium Romesser et al. 1981

Assigned by: Romesser JA, Wolfe RS, Mayer F, Spiess E, Walther-Mauruschat A. Methanogenium, a new genus of marine methanogenic bacteria, and characterization of Methanogenium cariaci sp. nov. and Methanogenium marisnigri sp. nov. Arch. Mikrobiol. 1979; 121:147-153.

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Record number: 777887