Name: Anaerococcus Ezaki et al. 2001

Category: Genus

Proposed as: gen. nov.

Etymology: An.a.e.ro.coc’cus. Gr. pref. an-, without (here: inseparable prefix); Gr. masc. n. aêr, air; N.L. masc. n. coccus, berry, coccus; N.L. masc. n. Anaerococcus, anaerobic coccus

Gender, pronunciation (Latin): masculine (stem: Anaerococc-), an-a-e-ro-KOK-kus

Type species: Anaerococcus prevotii (Foubert and Douglas 1948) Ezaki et al. 2001

Conduct genome-based taxonomy of genus at TYGS

16S rRNA gene: Analyse FASTA

Valid publication: Ezaki T, Kawamura Y, Li N, Li ZY, Zhao L, Shu S. Proposal of the genera Anaerococcus gen. nov., Peptoniphilus gen. nov. and Gallicola gen. nov. for members of the genus Peptostreptococcus. Int J Syst Evol Microbiol 2001; 51:1521-1528. 🇯🇵

IJSEM list: Anonymous. Notification list. Notification that new names and new combinations have appeared in volume 51, part 4 of the IJSEM. Int J Syst Evol Microbiol 2001; 51:1621-1623.

Nomenclatural status: validly published under the ICNP

Taxonomic status: correct name

Risk group: 2

• Notes:
  • 🧕 Alauzet et al. (2014) assigned this genus to the class "Tissierellia" Alauzet et al. 2014. Publication: Alauzet C, Marchandin H, Courtin P, Mory F, Lemee L, Pons JL, Chapot-Chartier MP, Lozniewski A, Jumas-Bilak E. Multilocus analysis reveals diversity in the genus Tissierella: description of Tissierella carlieri sp. nov. in the new class Tissierellia classis nov. Syst Appl Microbiol 2014; 37:23-34. 🇫🇷
  • 🧕 De Vos et al. (2009) assigned this genus to the order Clostridiales Prévot 1953 (Approved Lists 1980). Publication: Ludwig W, Schleifer K-H, Whitman WB. Class I. Bacilli class nov. In: De Vos P, Garrity GM, Jones D, Krieg NR, Ludwig W, Rainey FA, K.-H. S, Whitman WB (eds), Bergey's Manual of Systematic Bacteriology, 2nd edn, vol. 3 (The Firmicutes), Springer, New York, 2009, p. 19-20. 🇧🇪
  • 🚋 The type species of this genus has alternatively been placed in the genus Micrococcus Cohn 1872 (Approved Lists 1980). Publication: Foubert ELJ, Douglas HC. Studies on the anaerobic micrococci; taxonomic considerations. J Bacteriol 1948; 56:25-34.
  • 🚋 The type species of this genus has alternatively been placed in the genus Peptococcus Kluyver and van Niel 1936 (Approved Lists 1980). Publication: Douglas HC. Genus VI. Peptococcus Kluyver and vanNiel 1936. In: Breed RS, Murray EGD, Smith NR (eds), Bergey's Manual of Determinative Bacteriology, 7th edition, The Williams & Wilkins Co, Baltimore, 1957, p. 474-480.
  • 🚋 The type species of this genus has alternatively been placed in the genus Peptostreptococcus Kluyver and van Niel 1936 (Approved Lists 1980). Publication: Ezaki T, Yamamoto N, Ninomiya K, Suzuki S, Yabuuchi E. Transfer of Peptococcus indolicus, Peptococcus asaccharolyticus, Peptococcus prevotii, and Peptococcus magnus to the genus Peptostreptococcus and proposal of Peptostreptococcus tetradius sp. nov. Int. J. Syst. Bacteriol. 1983; 33:683-698. 🇯🇵
  • 💁 Taxonomists who have recently focused on this group are the corresponding authors of Veloo et al. (2016), Pagnier et al. (2014), Ezaki et al. (2001). 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 phylogenomic assignment score of this taxon is 0.04287 (N = 7).
  • 🎰 The BRCs most frequently used for deposits in this group are: DSM: 26; CCUG: 14; CSUR: 12; JCM: 7; ATCC: 6; CIP: 4; NCTC: 2; CCTCC: 1; KCTC: 1; B: 1.
  • 😷 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.

Subdivision:

Number of child taxa with a validly published and correct name: 20
Number of child taxa with a validly published name, including synonyms: 20
Total number of child taxa: 34

• Child taxa:

  • Name	Nomenclatural status	Taxonomic status
    Anaerococcus cruorum Boiten et al. 2025	validly published under the ICNP	correct name
    Anaerococcus degeneri corrig. Veloo et al. 2017	validly published under the ICNP	correct name
    Anaerococcus degenerii Veloo et al. 2017	inaccurate spelling	misspelling
    "Anaerococcus faecalis" Yu et al. 2021	not validly published	preferred name
    Anaerococcus groningensis Boiten et al. 2025	validly published under the ICNP	correct name
    Anaerococcus hydrogenalis (Ezaki et al. 1990) Ezaki et al. 2001	validly published under the ICNP	correct name
    "Anaerococcus ihuae" Ly et al. 2022	not validly published	preferred name
    Anaerococcus jeddahensis Dione et al. 2023	validly published under the ICNP	correct name
    Anaerococcus kampingae corrig. Boiten et al. 2025	validly published under the ICNP	correct name
    Anaerococcus kampingiae Boiten et al. 2025	inaccurate spelling	misspelling
    Anaerococcus lactolyticus (Li et al. 1992) Ezaki et al. 2001	validly published under the ICNP	correct name
    "Anaerococcus marasmi" Tall et al. 2020	not validly published	preferred name
    Anaerococcus martiniensis Boiten et al. 2025	validly published under the ICNP	correct name
    "Candidatus Anaerococcus massiliensis" Fenollar et al. 2006	not validly published	pro-correct name
    "Anaerococcus mediterraneensis" Diop et al. 2017	not validly published	preferred name
    Anaerococcus murdochii Song et al. 2010	validly published under the ICNP	correct name
    Anaerococcus nagyae Veloo et al. 2017	validly published under the ICNP	correct name
    "Anaerococcus obesiensis" Lagier et al. 2012	not validly published	preferred name
    Anaerococcus octavius (Murdoch et al. 1997) Ezaki et al. 2001	validly published under the ICNP	correct name
    Anaerococcus pacaensis Pagnier et al. 2017	validly published under the ICNP	correct name
    "Candidatus Anaerococcus phoceensis" Fenollar et al. 2006	not validly published	pro-correct name
    Anaerococcus porci Wylensek et al. 2021	validly published under the ICNP	correct name
    Anaerococcus prevotii (Foubert and Douglas 1948) Ezaki et al. 2001	validly published under the ICNP	correct name
    Anaerococcus provencensis corrig. Pagnier et al. 2017	validly published under the ICNP	correct name
    Anaerococcus provenciensis Pagnier et al. 2017	inaccurate spelling	misspelling
    Anaerococcus rubeinfantis corrig. Tidjani Alou et al. 2017	validly published under the ICNP	correct name
    Anaerococcus rubiinfantis Tidjani Alou et al. 2017	inaccurate spelling	misspelling
    Anaerococcus senegalensis Lagier et al. 2014	validly published under the ICNP	correct name
    Anaerococcus tetradius (Ezaki et al. 1983 ex Choukévitch 1911) Ezaki et al. 2001	validly published under the ICNP	correct name
    "Candidatus Anaerococcus timonensis" Fenollar et al. 2006	not validly published	pro-correct name
    "Anaerococcus urinimassiliensis" Morand et al. 2021	not validly published	preferred name
    "Anaerococcus urinomassiliensis" Morand et al. 2016	not validly published	synonym
    Anaerococcus vaginalis (Li et al. 1992) Ezaki et al. 2001	validly published under the ICNP	correct name
    Anaerococcus vaginimassiliensis Bordigoni et al. 2026	validly published under the ICNP	correct name

Parent taxon: Peptoniphilaceae Johnson et al. 2014

Assigned by: Johnson CN, Whitehead TR, Cotta MA, Rhoades RE, Lawson PA. Peptoniphilus stercorisuis sp. nov., isolated from a swine manure storage tank and description of Peptoniphilaceae fam. nov. Int J Syst Evol Microbiol 2014; 64:3538-3545. 🇺🇸

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Record number: 515119