Name: Bacteroides melaninogenicus subsp. macacae Slots and Genco 1980

Category: Subspecies

Proposed as: subsp. nov.

Etymology: ma.ca’cae. N.L. fem. n. Macaca, genus name of the macaque; N.L. gen. fem. n. macacae, of the macaque

Gender: masculine

Type strain: 7728-L6C; ATCC 33141; CCUG 47703; DSM 20710; JCM 13914; NCTC 13100; Slots' strain 7728-L6C; VPI 10450; VPI 3300

See detailed strain information at

Conduct genome-based taxonomy at

16S rRNA gene: AB547665 Analyse FASTA

Valid publication: Slots J, Genco RJ. Bacteroides melaninogenicus subsp. macacae, a new subspecies from monkey periodontopathic indigenous microflora. Int. J. Syst. Bacteriol. 1980; 30:82-85.

Nomenclatural status: validly published under the ICNP

Taxonomic status: synonym (and not recommended for medical use)

Correct name: Porphyromonas macacae (Slots and Genco 1980) Love 1995

Risk group: 2

• Synonyms:

  • Name	Kind
    Porphyromonas salivosa (Love et al. 1987) Love et al. 1992	heterotypic synonym, validly published under the ICNP, distinct rank
    Bacteroides salivosus Love et al. 1987	heterotypic synonym, validly published under the ICNP, distinct rank
    Porphyromonas macacae (Slots and Genco 1980) Love 1995	homotypic synonym, validly published under the ICNP, distinct rank
    Bacteroides macacae (Slots and Genco 1980) Coykendall et al. 1980	homotypic synonym, validly published under the ICNP, distinct rank

• Notes:
  • ❗ Bacteroides melaninogenicus subsp. macacae is the correct name instead if this subspecies is regarded as a separate subspecies (i.e., if its nomenclatural type is not assigned to another subspecies whose name is validly published, legitimate and not rejected and has priority) within a separate species Bacteroides melaninogenicus within a separate genus Bacteroides.
  • 😷 The risk group for Belgium has been imported on 2024-02-05. The full classification is: risk group = 1, note = "animal pathogen - biological class of risk animal: 2". — The risk group for Swiss Confederation has been imported on 2024-02-01. The full classification is: risk group = 2, note = "PV". — The risk group for Germany has been imported on 2023-10-29. The full classification is: risk group = 2, note = "ht". — 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 name is on the List of Recommended Names for bacteria of medical importance (LoRN) as a synonym of the name to be applied to this subspecies. The name is on LoRN because of the recorded risk group of the species itself.

Parent taxon: Bacteroides melaninogenicus (Oliver and Wherry 1921) Roy and Kelly 1939 (Approved Lists 1980)

Assigned by: Slots J, Genco RJ. Bacteroides melaninogenicus subsp. macacae, a new subspecies from monkey periodontopathic indigenous microflora. Int. J. Syst. Bacteriol. 1980; 30:82-85.

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Record number: 773959