Name: Comamonas (ex Davis and Park 1962) De Vos et al. 1985

Category: Genus

Proposed as: gen. nov., nom. rev.

Etymology: Co.ma’mo.nas. L. fem. n. coma, the hair of the head, hair; L. fem. n. monas, a unit, monad; N.L. fem. n. Comamonas, cell with a polar tuft of flagella [probably better: Comimonas]

Gender, pronunciation (Latin): feminine (stem: Comamonad-), ko-MA-mo-nas

Type species: Comamonas terrigena (ex Hugh 1962) De Vos et al. 1985

Conduct genome-based taxonomy of genus at TYGS

16S rRNA gene: Analyse FASTA

Valid publication: De Vos P, Kersters K, Falsen E, Pot B, Gillis M, Segers P, De Ley J. Comamonas Davis and Park 1962, gen. nov., nom. rev. emend., and Comamonas terrigena Hugh 1962, sp. nov., nom. rev. Int. J. Syst. Bacteriol. 1985; 35:443-453.

Nomenclatural status: validly published under the ICNP

Taxonomic status: correct name

Risk group: 2

• Synonyms:

  • Name	Kind
    "Comamonas" Davis and Park 1962	homotypic synonym, not validly published
    "Comamonas" Miyamoto et al. 1961	homotypic synonym, not validly published

• Emendations:
  • Tamaoka et al. 1987 Tamaoka J, Ha DM, Komagata K. Reclassification of Pseudomonas acidovorans den Dooren de Jong 1926 and Pseudomonas testosteroni Marcus and Talalay 1956 as Comamonas acidovorans comb. nov. and Comamonas testosteroni comb. nov., with an emended description of the genus Comamonas. Int. J. Syst. Bacteriol. 1987; 37:52-59.
    Notes:
    • ⊕ Emendation accompanied by the proposal of 2 new species in the genus.
  • Willems et al. 1991 Willems A, Pot B, Falsen E, Vandamme P, Gillis M, Kersters K, De Ley J. Polyphasic taxonomic study of the emended genus Comamonas: relationship to Aquaspirillum aquaticum, E. Falsen group 10, and other clinical isolates. Int. J. Syst. Bacteriol. 1991; 41:427-444.
    Notes:
    • 🧍 This emendation was not found in the expected IJSEM notification list.
  • Zhang et al. 2013 Zhang J, Wang Y, Zhou S, Wu C, He J, Li F. Comamonas guangdongensis sp. nov., isolated from subterranean forest sediment, and emended description of the genus Comamonas. Int J Syst Evol Microbiol 2013; 63:809-814. 🇨🇳 Euzeby JP. Notification list. Notification that new names and new combinations have appeared in volume 63, part 3 of the IJSEM. Int J Syst Evol Microbiol 2013; 63:1939-1941.
    Notes:
    • ⊕ Emendation accompanied by the proposal of 1 new species in the genus.
    • 🧍 In the paper by Zhang et al. 2013, "Emended description of the genus Comamonas Tamaoka et al. 1987" should be read "Emended description of the genus Comamonas (ex Davis and Park 1962) De Vos et al. 1985 emend. Tamaoka et al. 1987".

• Notes:
  • 🥇 Nomenclatural type of the family Comamonadaceae Willems et al. 1991. Publication: Willems A, De Ley J, Gillis M, Kersters K. Comamonadaceae, a new family encompassing the acidovorans rRNA complex, including Variovorax paradoxus gen. nov., comb. nov., for Alcaligenes paradoxus (Davis 1969). Int. J. Syst. Bacteriol. 1991; 41:445-450. 🇧🇪
  • 🚋 The type species of this genus has alternatively been placed in the genus Pseudomonas Migula 1894 (Approved Lists 1980). Publication: Véron M. La position taxonomique des Vibrio et de certaines bactéries comparables. Comptes Rendus de l'Académie des Sciences Paris 1965; 261:5243-5246.
  • 🚋 The type species of this genus has alternatively been placed in the genus "Comamonas" Davis and Park 1962. Publication: Davis GH, Park RW. A taxonomic study of certain bacteria currently classified as Vibrio species. J Gen Microbiol 1962; 27:101-119.
  • 🚋 The type species of this genus has alternatively been placed in the genus "Comamonas" Davis and Park 1962. Publication: Hugh R. Comamonas terrigena comb. nov. with proposal of a neotype and request for an opinion. Int. Bull. Bacteriol. Nomencl. Taxon. 1962; 12:33-35.
  • 🙄 This taxon name is occasionally misprinted (or affected by an OCR error) in some sources as: "Chmomonas"; "Comamenas"; "Comamon"; "Commamonas"; "Commonas"; "Comomonas"; "Cornamonas"; "Cornarnonas"; "Yomumonas".
  • 💁 Taxonomists who have recently focused on this group are the corresponding authors of Sun et al. (2013), Park et al. (2021), Young et al. (2008). Editors in search of reviewers are advised to consider additional criteria such as whether a taxon is covered by one of the ICSP subcommittees.
  • 🎰 The BRCs most frequently used for deposits in this group are: DSM: 18; JCM: 17; CCUG: 11; LMG: 10; KCTC: 7; NBRC: 6; CIP: 6; ATCC: 5; KACC: 5; NCCB: 4.
  • 😷 The risk group for Canada has been imported on 2024-02-27. The full classification is: risk group = 2, note = "Animal classification RG: 1 - Security sensitive biological agent: No - Terrestrial animal pathogen under Canadian Food Inspection Agency authority: No - Containment level: Containment Level 2". — 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.
  • 🧍 Pittman et al. (1991) suggested the abbreviation "CMMN" for this genus name but this does not appear to be of practical relevance any longer. Publication: Pittman KF, Walczak CA, Lock CM. Codes and abbreviations for approved of effectively published names of genera of bacteria published from January 1980 to December 1990. Int J Syst Bacteriol 1991; 41:571-579.

Subdivision:

Number of child taxa with a validly published and correct name: 31
Number of child taxa with a validly published name, including synonyms: 32
Total number of child taxa: 34

• Child taxa:

  • Name	Nomenclatural status	Taxonomic status
    Comamonas acidovorans (den Dooren de Jong 1926) Tamaoka et al. 1987	validly published under the ICNP	synonym
    Comamonas antarctica (Xu et al. 2021) Du et al. 2023	validly published under the ICNP	correct name
    Comamonas aquatica (Hylemon et al. 1973) Wauters et al. 2003	validly published under the ICNP	correct name
    Comamonas aquatilis Kämpfer et al. 2018	validly published under the ICNP	correct name
    Comamonas avium Pallen 2024	validly published under the ICNP	correct name
    Comamonas badia Tago and Yokota 2005	validly published under the ICNP	correct name
    Comamonas composti Young et al. 2008	validly published under the ICNP	correct name
    Comamonas denitrificans Gumaelius et al. 2001	validly published under the ICNP	correct name
    Comamonas endophytica Yue et al. 2024	validly published under the ICNP	correct name
    "Candidatus Comamonas equi" Gilroy et al. 2022	not validly published	preferred name
    Comamonas fluminis Park et al. 2022	validly published under the ICNP	correct name
    Comamonas granuli Kim et al. 2011	validly published under the ICNP	correct name
    Comamonas guangdongensis Zhang et al. 2013	validly published under the ICNP	correct name
    Comamonas halotolerans Park et al. 2025	validly published under the ICNP	correct name
    Comamonas humi Hatayama 2014	validly published under the ICNP	correct name
    Comamonas jiangduensis Sun et al. 2013	validly published under the ICNP	correct name
    Comamonas kerstersii Wauters et al. 2003	validly published under the ICNP	correct name
    Comamonas koreensis Chang et al. 2002	validly published under the ICNP	correct name
    Comamonas nitrativorans Etchebehere et al. 2001	validly published under the ICNP	correct name
    Comamonas odontotermitis Chou et al. 2007	validly published under the ICNP	correct name
    Comamonas phosphati Xie et al. 2016	validly published under the ICNP	correct name
    Comamonas piscis Kang et al. 2016	validly published under the ICNP	correct name
    Comamonas resistens Yin et al. 2024	validly published under the ICNP	correct name
    Comamonas sediminis Subhash et al. 2016	validly published under the ICNP	correct name
    Comamonas serinivorans Zhu et al. 2014	validly published under the ICNP	correct name
    Comamonas squillarum Shi et al. 2025	validly published under the ICNP	correct name
    Comamonas suwonensis Park et al. 2021	validly published under the ICNP	correct name
    Comamonas terrae Chitpirom et al. 2012	validly published under the ICNP	correct name
    Comamonas terrigena (ex Hugh 1962) De Vos et al. 1985	validly published under the ICNP	correct name
    Comamonas testosteroni (Marcus and Talalay 1956) Tamaoka et al. 1987	validly published under the ICNP	correct name
    Comamonas thiooxidans Narayan et al. 2011	inaccurate spelling	misspelling
    Comamonas thiooxydans corrig. Narayan et al. 2011	validly published under the ICNP	correct name
    Comamonas trifloxystrobinivorans Zhu et al. 2025	validly published under the ICNP	correct name
    Comamonas zonglianii Yu et al. 2011	validly published under the ICNP	correct name

Parent taxon: Comamonadaceae Willems et al. 1991

Assigned by: Willems A, De Ley J, Gillis M, Kersters K. Comamonadaceae, a new family encompassing the acidovorans rRNA complex, including Variovorax paradoxus gen. nov., comb. nov., for Alcaligenes paradoxus (Davis 1969). Int. J. Syst. Bacteriol. 1991; 41:445-450. 🇧🇪

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Record number: 515404