Name: Moraxella Lwoff 1939 (Approved Lists 1980)

Category: Genus

Proposed as: gen. nov.

Etymology: Mo.rax.el’la. L. fem. dim. n. suff. -ella, diminutive ending; N.L. fem. dim. n. Moraxella, named in honor of V. Morax, notable for studies of the type species

Gender: feminine (stem: Moraxell-)

Type species: Moraxella lacunata (Eyre 1900) Lwoff 1939 (Approved Lists 1980)

Conduct genome-based taxonomy of genus at TYGS

16S rRNA gene: Analyse FASTA

Effective publication: Lwoff A. Révision et démembrement des Hemophilae, le genre Moraxella nov. gen. Annales de l'Institut Pasteur (Paris) 1939; 62:168-176.

IJSEM list: Skerman VBD, McGowan V, Sneath PHA. Approved lists of bacterial names. Int J Syst Bacteriol 1980; 30:225-420.

Nomenclatural status: validly published under the ICNP, conserved name

Taxonomic status: correct name

• Synonyms:

  • Name	Kind
    Branhamella Catlin 1970 (Approved Lists 1980)	heterotypic synonym, validly published under the ICNP

• Emendations:
  • Catlin 1991 Catlin BW. Branhamaceae fam. nov., a proposed family to accommodate the genera Branhamella and Moraxella. Int. J. Syst. Bacteriol. 1991; 41:320-323.
    Notes:
    • This description was not designated as an emendation.
    • This emendation was not found in the expected IJSEM notification list.
  • Li et al. 2022 Li F, Zhu P, Li Z, Zhao W, Gao H, Hong Q, Song J, Yang S. Moraxella nasovis sp. nov., isolated from a sheep with respiratory disease. Int J Syst Evol Microbiol 2022; 72:5511. Oren A. Notification list. Notification that new names and new combinations have appeared in volume 72, part 9 of the IJSEM. Int J Syst Evol Microbiol 2022; 72:5681.
    Notes:
    • Emendation accompanied by the proposal of 1 new species in the genus.

• Notes:
  • Nomenclatural type of the family Moraxellaceae Rossau et al. 1991. Publication: Rossau R, Van Landschoot A, Gillis M, De Ley J. Taxonomy of Moraxellaceae fam. nov., a new bacterial family to accommodate the genera Moraxella, Acinetobacter, and Psychrobacter and related organisms. Int. J. Syst. Bacteriol. 1991; 41:310-319.
  • Nomenclatural type of the order Moraxellales Liao et al. 2021. Publication: Liao H, Lin X, Li Y, Qu M, Tian Y. Reclassification of the Taxonomic Framework of Orders Cellvibrionales, Oceanospirillales, Pseudomonadales, and Alteromonadales in Class Gammaproteobacteria through Phylogenomic Tree Analysis. mSystems 2020; 5:e00543-20.
  • Breed et al. (1948) assigned this genus to the tribe "Hemophileae". Publication: Murray EGD. Genus II. Moraxella Lwoff. In: Breed RS, Murray EGD, Hitchens AP (eds), Bergey's Manual of Determinative Bacteriology, 6th ed., The Williams & Wilkins Co, Baltimore, 1948, p. 590-592.
  • Breed et al. (1957) assigned this genus to the family Brucellaceae Breed et al. 1957 (Approved Lists 1980). Publication: Parker CD. Genus V. Thiobacillus Beijerinck 1904. In: Breed RS, Murray EGD, Smith NR (eds), Bergey's Manual of Determinative Bacteriology, 7th edition, The Williams & Wilkins Co, Baltimore, 1957, p. 83-88.
  • Catlin (1991) assigned this genus to the family Branhamaceae Catlin 1991. Publication: Catlin BW. Branhamaceae fam. nov., a proposed family to accommodate the genera Branhamella and Moraxella. Int. J. Syst. Bacteriol. 1991; 41:320-323.
  • The type species of this genus has alternatively been placed in the genus Bacillus Cohn 1872 (Approved Lists 1980). Publication: Eyre JW. A clinical and bacteriological study of diplo-bacillary conjunctivitis. Journal of Pathology and Bacteriology 1900; 6:1-13.
  • This taxon name is occasionally misprinted in some sources as: "Aloraxella"; "Jloraxella"; "Momxella"; "Morabella"; "Moraxeila"; "Moraxelca"; "Moraxelia"; "Moraxellu"; "Moraxetia"; "Moraxolla"; "Moraxtalla"; "Morazella"; "Morexella"; "Mormella"; "Moroxella"; "Morraxella"; "Moruxella"; "Morxella"; "Movaxella"; "Muraxella"; "Nloraxella".
  • Minimal standards for the description of new taxa in this group were published in 1976. Publication: K. Bovre SDH. Minimal Standards for Description of New Taxa Within the Genera Moraxella and Acinetobacter: Proposal by the Subcommittee on Moraxella and Allied Bacteria. Int. J. Syst. Evol. Microbiol. 1976; 26:92-96.
  • Minimal standards for the description of new taxa in this group were published in 1976. Publication: Bovre K, Henriksen SD. Minimal Standards for Description of New Taxa Within the Genera Moraxella and Acinetobacter: Proposal by the Subcommittee on Moraxella and Allied Bacteria. International Journal of Systematic Bacteriology 1976; 26:92-96.
  • This taxon was discussed in a meeting of a Taxonomic Subcommittee of the ICSP. Publication: Nair GB, Holmes B. International Committee on Systematics of Prokaryotes. Subcommittee on the taxonomy of Vibrionaceae. Minutes of the meetings, 31 July 2002, Paris, France. Int J Syst Evol Microbiol 2005; 55:539-542.
  • Taxonomists who have recently focused on this group are the corresponding authors of Vela et al. (2010). 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: CCUG: 30; DSM: 25; ATCC: 24; LMG: 20; NCTC: 20; CIP: 16; JCM: 9; NBRC: 7; CECT: 2; IFO: 2.
  • Minimal standards for the description of new taxa in this group were published in 1976. Publication: K. Bovre SDH. Minimal Standards for Description of New Taxa Within the Genera Moraxella and Acinetobacter: Proposal by the Subcommittee on Moraxella and Allied Bacteria. Int. J. Syst. Evol. Microbiol. 1976; 26:92-96.
  • Pittman et al. (1991) suggested the abbreviation "MRXL" 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.
  • This name was subject to a Request for an Opinion. Publication: Tindall BJ. Challenging Opinion 83. Int J Syst Evol Microbiol 2008; 58:1772-1774.
  • Conserved name (Judicial Opinion 41). "The generic name Moraxella Lwoff 1939 is conserved over Diplobacillus McNab 1904 and over all earlier objective synonyms." Publication: Judicial Commission. Judicial Opinion No. 41. Int J Syst Bacteriol 1971; 21:106.

Subdivision:

Number of child taxa with a validly published and correct name: 20
Number of child taxa with a validly published name, including synonyms: 23
Total number of child taxa: 31

• Child taxa:

  • Name	Nomenclatural status	Taxonomic status
    Moraxella anatipestifer (Hendrickson and Hilbert 1932) Bruner and Fabricant 1954 (Approved Lists 1980)	inaccurate spelling	misspelling
    Moraxella anatipestifera corrig. (Hendrickson and Hilbert 1932) Bruner and Fabricant 1954 (Approved Lists 1980)	validly published under the ICNP	synonym
    Moraxella atlantae Bøvre et al. 1976 (Approved Lists 1980)	validly published under the ICNP	correct name
    Moraxella boevrei Kodjo et al. 1997	validly published under the ICNP	correct name
    Moraxella bovis (Hauduroy et al. 1937) Murray 1948 (Approved Lists 1980)	validly published under the ICNP	correct name
    Moraxella bovoculi Angelos et al. 2007	validly published under the ICNP	correct name
    "Moraxella calcoacetica" Canovas and Stanier 1967	not validly published
    Moraxella canis Jannes et al. 1993	validly published under the ICNP	correct name
    Moraxella caprae Kodjo et al. 1995	validly published under the ICNP	correct name
    Moraxella catarrhalis (Frosch and Kolle 1896) Henriksen and Bøvre 1968 (Approved Lists 1980)	validly published under the ICNP	correct name
    Moraxella caviae (Pelczar 1953) Henriksen and Bøvre 1968 (Approved Lists 1980)	validly published under the ICNP	correct name
    Moraxella cuniculi (Berger 1962) Bøvre and Hagen 1984	validly published under the ICNP	correct name
    Moraxella equi Hughes and Pugh 1970 (Approved Lists 1980)	validly published under the ICNP	correct name
    "Moraxella kingae" Henriksen 1973	not validly published
    "Moraxella kingii" Henriksen and Bøvre 1968	not validly published, basonym of name in Approved Lists
    Moraxella lacunata (Eyre 1900) Lwoff 1939 (Approved Lists 1980)	validly published under the ICNP	correct name
    Moraxella lincolnii Vandamme et al. 1993	validly published under the ICNP	correct name
    "Moraxella lwoffi" Audureau 1940	not validly published, basonym of name in Approved Lists
    "Moraxella macacae" Embers et al. 2011	not validly published
    "Moraxella nasicaprae" Li et al. 2023	not validly published
    Moraxella nasovis Li et al. 2022	validly published under the ICNP	correct name
    Moraxella nonliquefaciens (Scarlett 1916) Lwoff 1939 (Approved Lists 1980)	validly published under the ICNP	correct name
    Moraxella oblonga Xie and Yokota 2005	validly published under the ICNP	correct name
    Moraxella osloensis Bøvre and Henriksen 1967 (Approved Lists 1980)	validly published under the ICNP	correct name
    Moraxella ovis (Lindqvist 1960) Henriksen and Bøvre 1968 (Approved Lists 1980)	validly published under the ICNP	correct name
    Moraxella phenylpyruvica Bøvre and Henriksen 1967 (Approved Lists 1980)	validly published under the ICNP, conserved name	synonym
    Moraxella pluranimalium Vela et al. 2009	validly published under the ICNP	correct name
    Moraxella porci Vela et al. 2010	validly published under the ICNP	correct name
    Moraxella saccharolytica Flamm 1956 (Approved Lists 1980)	validly published under the ICNP	correct name
    "Moraxella tetraodonis" Das and Das 2022	not validly published
    Moraxella urethralis Lautrop et al. 1970 (Approved Lists 1980)	validly published under the ICNP	synonym

Parent taxon: Moraxellaceae Rossau et al. 1991

Assigned by: Rossau R, Van Landschoot A, Gillis M, De Ley J. Taxonomy of Moraxellaceae fam. nov., a new bacterial family to accommodate the genera Moraxella, Acinetobacter, and Psychrobacter and related organisms. Int. J. Syst. Bacteriol. 1991; 41:310-319.

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Record number: 516121