Name: Actinomyces Harz 1877 (Approved Lists 1980)
Category, proposed as: genus, gen. nov.
Etymology: Ac.ti.no’my.ces. Gr. fem. n. aktis (gen. aktînos), ray; Gr. masc. n. mykês, fungus; N.L. masc. n. Actinomyces, ray fungus, referring to the radial arrangement of filaments in Actinomyces bovis sulfur granules
Gender, pronunciation (Latin): masculine (stem: Actinomycet-), ak-ti-NO-my-kes
Type species: Actinomyces bovis Harz 1877 (Approved Lists 1980)
Conduct genome-based taxonomy of genus at TYGS
Effective publication: Harz CO. Actinomyces bovis, ein neuer Schimmel in den Geweben des Rindes. Deutsche Zeitschrift für Thiermedizin 1877-1878; 5:125-140.
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
Taxonomic status: correct name
| Name | Kind |
|---|---|
| "Actinobacterium" Sampietro 1908 | heterotypic synonym, not validly published |
| "Odontomyces" Howell et al. 1965 | heterotypic synonym, not validly published |
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Oren A, Garrity GM. List of changes in taxonomic opinion no. 29. Notification of changes in taxonomic opinion previously published outside the IJSEM. Int J Syst Evol Microbiol 2019; 69:13-32.
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Number of child taxa with a validly published and correct name: 38
Number of child taxa with a validly published name, including synonyms: 65
Total number of child taxa: 353
| Name | Nomenclatural status | Taxonomic status |
|---|---|---|
| Actinomyces acetigenes Tian et al. 2024 | validly published under the ICNP | correct name |
| "Actinomyces acrimycini" Preobrazhenskaya et al. 1957 | not validly published, basonym of name in Approved Lists | synonym |
| "Actinomyces actinomycetemcomitans" Iinuma et al. 1994 | not validly published | preferred name |
| "Actinomyces agglomeratus" Yen 1957 | not validly published | synonym |
| "Actinomyces ahygroscopicus" Chiu and Wu 1963 | not validly published | synonym |
| "Actinomyces albidopureus" Krassilnikov 1970 | not validly published | preferred name |
| "Actinomyces albobrunneus" Krassilnikov 1970 | not validly published | preferred name |
| "Actinomyces albocaneus" Krassilnikov 1970 | not validly published | preferred name |
| "Actinomyces alboclarus" Krassilnikov 1970 | not validly published | preferred name |
| "Actinomyces albocolor" Krassilnikov 1970 | not validly published | preferred name |
| "Actinomyces albodenitrificans" Krassilnikov 1970 | not validly published | preferred name |
| "Actinomyces alboflavus" Waksman and Curtis 1916 | not validly published, basonym of name in Approved Lists | synonym |
| "Actinomyces albogriseus" Krassilnikov 1970 | not validly published | preferred name |
| "Actinomyces albohelvatus" Krassilnikov et al. 1965 | not validly published | synonym |
| "Actinomyces albonivalis" Krassilnikov 1970 | not validly published | preferred name |
| "Actinomyces alboniveus" Krassilnikov 1970 | not validly published | preferred name |
| "Actinomyces alborobeus" Krassilnikov 1970 | not validly published | preferred name |
| "Actinomyces albosporeus" Krainsky 1914 | not validly published, basonym of name in Approved Lists | synonym |
| "Actinomyces albovinaceus" Kudrina 1957 | not validly published, basonym of name in Approved Lists | synonym |
| "Actinomyces alboviridis" Duché 1934 | not validly published, basonym of name in Approved Lists | synonym |
| "Actinomyces almquisti" Duché 1934 | inaccurate spelling | misspelling |
| "Actinomyces almquistii" corrig. Duché 1934 | not validly published, basonym of name in Approved Lists | synonym |
| "Actinomyces ansochromogenes" Yen and Zhang 1964 | not validly published | synonym |
| "Actinomyces anthocyanicus" Krassilnikov et al. 1965 | not validly published, basonym of name in Approved Lists | synonym |
| "Actinomyces anthocyanicus" Krassilnikov 1965 | not validly published | synonym |
| "Actinomyces anthocyanolatus" Krassilnikov 1970 | not validly published | preferred name |
| "Actinomyces antibioticus" Waksman and Woodruff 1941 | not validly published, basonym of name in Approved Lists | synonym |
| "Actinomyces ashchabadicus" Preobrazhenskaya 1966 | not validly published | synonym |
| "Actinomyces atrolaccus" Yen 1957 | not validly published | preferred name |
| "Actinomyces atroolivaceus" Preobrazhenskaya et al. 1957 | not validly published, basonym of name in Approved Lists | synonym |
| "Actinomyces atrovirens" Preobrazhenskaia et al. 1971 | not validly published | preferred name |
| "Actinomyces aurantiogriseus" Preobrazhenskaya 1957 | not validly published, basonym of name in Approved Lists | synonym |
| "Actinomyces aureocirculatus" Krassilnikov and Yuan 1965 | not validly published, basonym of name in Approved Lists | synonym |
| "Actinomyces aureofasciculus" Krassilnikov and Yuan 1965 | not validly published | preferred name |
| "Actinomyces aureomonopodiales" Krassilnikov and Yuan 1965 | not validly published | synonym |
| "Actinomyces aureoverticillatus" Krassilnikov and Yuan 1960 | not validly published, basonym of name in Approved Lists | synonym |
| "Actinomyces aurigineus" Krassilnikov et al. 1965 | not validly published | synonym |
| "Actinomyces azurocolor" Krassilnikov 1970 | not validly published | preferred name |
| "Actinomyces azurolatus" Krassilnikov 1970 | not validly published | preferred name |
| "Actinomyces bacillaris" Krassilnikov 1958 | not validly published, basonym of name in Approved Lists | synonym |
| "Actinomyces badius" Kudrina 1957 | not validly published, basonym of name in Approved Lists | synonym |
| Actinomyces bernardiae Funke et al. 1995 | validly published under the ICNP | synonym |
| "Actinomyces bikiniensis" (Johnstone and Waksman 1947) Krassilnikov 1949 | not validly published | synonym |
| "Actinomyces biverticillatus" Preobrazhenskaya 1957 | not validly published, basonym of name in Approved Lists | synonym |
| "Actinomyces bobili" Waksman and Curtis 1916 | not validly published, basonym of name in Approved Lists | synonym |
| Actinomyces bouchesdurhonensis Mbogning Fonkou et al. 2026 | validly published under the ICNP | correct name |
| Actinomyces bovis Harz 1877 (Approved Lists 1980) | validly published under the ICNP | correct name |
| Actinomyces bowdenii Pascual et al. 1999 | validly published under the ICNP | correct name |
| "Actinomyces brunneoferus" Krassilnikov 1970 | not validly published | preferred name |
| "Actinomyces brunneofungus" Krassilnikov et al. 1971 | not validly published | preferred name |
| "Actinomyces cacaoi" Waksman 1932 | not validly published, basonym of name in Approved Lists | synonym |
| "Actinomyces caeruleus" Baldacci 1944 | not validly published, basonym of name in Approved Lists | synonym |
| "Actinomyces caesiolatus" Krassilnikov 1970 | not validly published | preferred name |
| "Actinomyces caesius" Krassilnikov et al. 1965 | not validly published | synonym |
| "Actinomyces californicus" Waksman and Curtis 1916 | not validly published, basonym of name in Approved Lists | synonym |
| Actinomyces canis Hoyles et al. 2000 | validly published under the ICNP | synonym |
| Actinomyces capricornis Saito et al. 2022 | validly published under the ICNP | correct name |
| Actinomyces cardiffensis Hall et al. 2003 | validly published under the ICNP | synonym |
| "Actinomyces castaneoglobisporus" Yen 1957 | not validly published | synonym |
| "Actinomyces castaneus" Yen 1957 | not validly published | synonym |
| Actinomyces catuli Hoyles et al. 2001 | validly published under the ICNP | correct name |
| "Actinomyces cellulosae" Krainsky 1914 | not validly published, basonym of name in Approved Lists | synonym |
| "Actinomyces chartreusis" (Leach et al. 1953) Preobrazhenskaya 1966 | not validly published | synonym |
| "Actinomyces chlorobiens" Krassilnikov and Yegorova 1965 | not validly published | synonym |
| "Actinomyces chromofuscus" Preobrazhenskaya et al. 1957 | not validly published, basonym of name in Approved Lists | synonym |
| "Actinomyces chryseus" Krassilnikov et al. 1965 | not validly published, basonym of name in Approved Lists | synonym |
| "Actinomyces cinereorectus" Chugasova et al. 1974 | not validly published | preferred name |
| "Actinomyces cinereoviridis" Korobkova et al. 1972 | not validly published | preferred name |
| "Actinomyces cinnabarinus" Ryabova and Preobrazhenskaya 1957 | not validly published, basonym of name in Approved Lists | synonym |
| "Actinomyces citreofluorescens" Korenyako et al. 1960 | not validly published, basonym of name in Approved Lists | synonym |
| "Actinomyces clavifer" Millard and Burr 1926 | not validly published, basonym of name in Approved Lists | synonym |
| "Actinomyces coelescens" Krassilnikov 1965 | not validly published | synonym |
| "Actinomyces coelescens" Krassilnikov et al. 1965 | not validly published, basonym of name in Approved Lists | synonym |
| "Actinomyces coeliatus" Krassilnikov et al. 1965 | not validly published | synonym |
| "Actinomyces coelicoalbus" Krassilnikov 1970 | not validly published | preferred name |
| "Actinomyces coelicoferus" Krassilnikov et al. 1965 | not validly published | preferred name |
| "Actinomyces coelicoflavus" (Ryabova and Preobrazhenskaya 1957) Krassilnikov 1970 | not validly published | preferred name |
| "Actinomyces coelicolatus" Krassilnikov et al. 1965 | not validly published | preferred name |
| "Actinomyces coelicovarians" Krassilnikov et al. 1965 | not validly published | preferred name |
| "Actinomyces coerulatus" Krassilnikov et al. 1965 | not validly published | synonym |
| "Actinomyces coeruleofuscus" Preobrazhenskaya 1957 | not validly published, basonym of name in Approved Lists | synonym |
| "Actinomyces coeruleoroseus" Preobrazhenskaya 1966 | not validly published | synonym |
| "Actinomyces coeruleorubidus" Preobrazhenskaya 1957 | not validly published, basonym of name in Approved Lists | synonym |
| "Actinomyces coerulescens" Preobrazhenskaya 1957 | not validly published, basonym of name in Approved Lists | synonym |
| Actinomyces coleocanis Hoyles et al. 2002 | validly published under the ICNP | synonym |
| "Actinomyces cremeospinus" Gauze et al. 1975 | not validly published | preferred name |
| "Actinomyces cremeus" Kudrina 1957 | not validly published, basonym of name in Approved Lists | synonym |
| "Actinomyces cretarius" Krassilnikov 1970 | not validly published | preferred name |
| "Actinomyces cristalomycini" Rutkowska et al. 1995 | not validly published | preferred name |
| "Actinomyces culturomici" Fonkou et al. 2018 | not validly published | preferred name |
| "Actinomyces cyaneofuscatus" Kudrina 1957 | not validly published, basonym of name in Approved Lists | synonym |
| "Actinomyces cyaneogriseus" Yen 1956 | not validly published | synonym |
| "Actinomyces cyaneus" Krassilnikov 1941 | not validly published, basonym of name in Approved Lists | synonym |
| "Actinomyces cyanoalbus" Krassilnikov and Agre 1960 | not validly published, basonym of name in Approved Lists | synonym |
| "Actinomyces cyanocolor" Krassilnikov et al. 1965 | not validly published | synonym |
| "Actinomyces cyanofetus" Krassilnikov 1970 | not validly published | preferred name |
| "Actinomyces cyanogenus" Krassilnikov et al. 1965 | not validly published | synonym |
| "Actinomyces cyanogenus" Krassilnikov 1965 | not validly published | synonym |
| "Actinomyces cyanoglomerus" Krassilnikov et al. 1965 | not validly published | synonym |
| "Actinomyces cyanolatus" Krassilnikov 1970 | not validly published | preferred name |
| "Actinomyces daghestanicus" Sveshnikova 1957 | not validly published, basonym of name in Approved Lists | synonym |
| Actinomyces dentalis Hall et al. 2005 | validly published under the ICNP | correct name |
| Actinomyces denticolens Dent and Williams 1984 | validly published under the ICNP | correct name |
| "Actinomyces dentocariosus" Onishi 1949 | not validly published, basonym of name in Approved Lists | synonym |
| "Actinomyces diastaticus" Krainsky 1914 | not validly published, basonym of name in Approved Lists | synonym |
| "Actinomyces diastatochromogenes" Krainsky 1914 | not validly published, basonym of name in Approved Lists | synonym |
| "Actinomyces eriksonii" Cato et al. 1970 | not validly published | preferred name |
| "Actinomyces erythraeus" corrig. Waksman 1923 | not validly published, basonym of name in Approved Lists | synonym |
| "Actinomyces erythreus" Waksman 1923 | inaccurate spelling | misspelling |
| Actinomyces europaeus Funke et al. 1997 | validly published under the ICNP | synonym |
| "Actinomyces exfoliatus" Waksman and Curtis 1916 | not validly published, basonym of name in Approved Lists | synonym |
| Actinomyces faecalis Zhou et al. 2021 | validly published under the ICNP | correct name |
| "Actinomyces fimbriatus" Millard and Burr 1926 | not validly published, basonym of name in Approved Lists | synonym |
| "Actinomyces fimicarius" Duché 1934 | not validly published, basonym of name in Approved Lists | synonym |
| "Actinomyces finlayi" Szabó et al. 1963 | not validly published, basonym of name in Approved Lists | synonym |
| "Actinomyces flaveolus" Waksman 1923 | not validly published, basonym of name in Approved Lists | synonym |
| "Actinomyces flavidovirens" Kudrina 1957 | not validly published, basonym of name in Approved Lists | synonym |
| "Actinomyces flavofungini" Sabo and Preobrazhenskaya 1962 | not validly published | preferred name |
| "Actinomyces flavogriseus" Duché 1934 | not validly published, basonym of name in Approved Lists | synonym |
| "Actinomyces flavomacrosporus" Yen 1957 | not validly published | synonym |
| "Actinomyces flavotricini" Preobrazhenskaya and Sveshnikova 1957 | not validly published, basonym of name in Approved Lists | synonym |
| "Actinomyces flavovariabilis" Korenyako and Nikitina 1965 | not validly published | synonym |
| "Actinomyces flavovirens" Waksman 1923 | not validly published, basonym of name in Approved Lists | synonym |
| "Actinomyces flocculus" Duché 1934 | not validly published, basonym of name in Approved Lists | synonym |
| "Actinomyces fluorescens" Krassilnikov 1958 | not validly published, basonym of name in Approved Lists | synonym |
| "Actinomyces foetoris" Krassilnikov 1970 | not validly published | preferred name |
| "Actinomyces fradiae" corrig. Waksman and Curtis 1916 | not validly published, basonym of name in Approved Lists | synonym |
| "Actinomyces fradii" Waksman and Curtis 1916 | inaccurate spelling | misspelling |
| "Actinomyces fulvissimus" Jensen 1930 | not validly published, basonym of name in Approved Lists | synonym |
| "Actinomyces fulvoviolaceus" Artamonova and Krassilnikov 1960 | not validly published | synonym |
| "Actinomyces fulvoviridis" Kuchaeva et al. 1960 | not validly published | synonym |
| "Actinomyces fumanus" Sveshnikova 1957 | not validly published, basonym of name in Approved Lists | synonym |
| Actinomyces funkei Lawson et al. 2001 | validly published under the ICNP | synonym |
| "Actinomyces gallicus" Erikson 1935 | not validly published, basonym of name in Approved Lists | synonym |
| Actinomyces gaoshouyii Meng et al. 2017 | validly published under the ICNP | correct name |
| "Actinomyces gelaticus" Waksman 1923 | not validly published, basonym of name in Approved Lists | synonym |
| Actinomyces georgiae Johnson et al. 1990 | validly published under the ICNP | synonym |
| Actinomyces gerencseriae Johnson et al. 1990 | validly published under the ICNP | correct name |
| "Actinomyces gibsonii" Erikson 1935 | not validly published, basonym of name in Approved Lists | synonym |
| "Actinomyces glaucescens" Preobrazhenskaya 1957 | not validly published, basonym of name in Approved Lists | synonym |
| "Actinomyces globispororoseus" Barashkova et al. 1976 | not validly published | preferred name |
| "Actinomyces globisporus" Krassilnikov 1941 | not validly published, basonym of name in Approved Lists | synonym |
| "Actinomyces globosus" Krassilnikov 1941 | not validly published, basonym of name in Approved Lists | synonym |
| "Actinomyces glomeroaurantiacus" Krassilnikov 1965 | not validly published | synonym |
| "Actinomyces glomeroaurantiacus" Krassilnikov and Yuan 1965 | not validly published, basonym of name in Approved Lists | synonym |
| "Actinomyces glomerochromogenes" Yen and Zhang 1964 | not validly published | synonym |
| "Actinomyces glycerinitolerans" Palakawong Na Ayudthaya et al. 2016 | not validly published | preferred name |
| "Actinomyces gobitricini" Preobrazhenskaya and Sveshnikova 1957 | not validly published, basonym of name in Approved Lists | synonym |
| "Actinomyces gougeroti" Duché 1934 | inaccurate spelling | misspelling |
| "Actinomyces gougerotii" corrig. Duché 1934 | not validly published, basonym of name in Approved Lists | synonym |
| Actinomyces graevenitzii Pascual Ramos et al. 1997 | validly published under the ICNP | correct name |
| "Actinomyces griseinus" Konovalov et al. 1974 | not validly published | preferred name |
| "Actinomyces griseoaurantiacus" Krassilnikov and Yuan 1965 | not validly published, basonym of name in Approved Lists | synonym |
| "Actinomyces griseoflavus" Krainsky 1914 | not validly published, basonym of name in Approved Lists | synonym |
| "Actinomyces griseoincarnatus" Preobrazhenskaya et al. 1957 | not validly published, basonym of name in Approved Lists | synonym |
| "Actinomyces griseoloalbus" Kudrina 1957 | not validly published, basonym of name in Approved Lists | synonym |
| "Actinomyces griseoloviolaceus" Yen 1956 | not validly published | synonym |
| "Actinomyces griseolus" Waksman 1923 | not validly published, basonym of name in Approved Lists | synonym |
| "Actinomyces griseomycini" Preobrazhenskaya et al. 1957 | not validly published, basonym of name in Approved Lists | synonym |
| "Actinomyces griseorubens" Preobrazhenskaya et al. 1957 | not validly published, basonym of name in Approved Lists | synonym |
| "Actinomyces griseoruber" Ryabova and Preobrazhenskaya 1957 | not validly published | preferred name |
| "Actinomyces griseorubiginosus" Ryabova and Preobrazhenskaya 1957 | not validly published, basonym of name in Approved Lists | synonym |
| "Actinomyces griseostramineus" Preobrazhenskaya et al. 1957 | not validly published, basonym of name in Approved Lists | synonym |
| "Actinomyces griseus" Krainsky 1914 | not validly published, basonym of name in Approved Lists | synonym |
| Actinomyces haliotis Hyun et al. 2014 | validly published under the ICNP | correct name |
| "Actinomyces halstedii" Waksman and Curtis 1916 | not validly published, basonym of name in Approved Lists | synonym |
| "Actinomyces helvaticus" Krassilnikov et al. 1965 | not validly published, basonym of name in Approved Lists | synonym |
| "Actinomyces herbescens" Krassilnikov and Yegorova 1965 | not validly published | synonym |
| "Actinomyces herbeus" Krassilnikov and Yegorova 1965 | not validly published | synonym |
| "Actinomyces herbiferis" Krassilnikov and Yegorova 1965 | not validly published | synonym |
| "Actinomyces herbobrunneus" Krassilnikov 1970 | not validly published | preferred name |
| Actinomyces hominis Funke et al. 2010 | validly published under the ICNP | synonym |
| Actinomyces hongkongensis Woo et al. 2004 | validly published under the ICNP | synonym |
| Actinomyces hordeovulneris Buchanan et al. 1984 | validly published under the ICNP | synonym |
| "Actinomyces houstonensis" Clarridge and Zhang 2002 | not validly published | preferred name |
| Actinomyces howellii Dent and Williams 1984 | validly published under the ICNP | correct name |
| Actinomyces humiferus Gledhill and Casida 1969 (Approved Lists 1980) | inaccurate spelling | misspelling |
| Actinomyces humilatus corrig. Gledhill and Casida 1969 (Approved Lists 1980) | validly published under the ICNP | synonym |
| "Actinomyces hygroscopicus" Jensen 1931 | not validly published, basonym of name in Approved Lists | synonym |
| Actinomyces hyovaginalis Collins et al. 1993 | validly published under the ICNP | synonym |
| "Actinomyces ihuae" Mbogning Fonkou et al. 2018 | not validly published | preferred name |
| "Actinomyces ihumii" Ndongo et al. 2016 | not validly published | synonym |
| "Actinomyces indigocolor" Krassilnikov et al. 1965 | not validly published | synonym |
| "Actinomyces inversochromogenes" Yen and Zhang 1964 | not validly published | synonym |
| "Actinomyces ipomoea" Person and Martin 1940 | not validly published, basonym of name in Approved Lists | synonym |
| Actinomyces israeli (Kruse 1896) Lachner-Sandoval 1898 (Approved Lists 1980) | inaccurate spelling | misspelling |
| Actinomyces israelii corrig. (Kruse 1896) Lachner-Sandoval 1898 (Approved Lists 1980) | validly published under the ICNP | correct name |
| "Actinomyces janthinus" Artamonova and Krassilnikov 1960 | not validly published, basonym of name in Approved Lists | synonym |
| Actinomyces johnsonii Henssge et al. 2009 | validly published under the ICNP | correct name |
| "Actinomyces kurssanovii" Preobrazhenskaya et al. 1957 | not validly published, basonym of name in Approved Lists | synonym |
| "Actinomyces lateritius" Sveshnikova 1957 | not validly published, basonym of name in Approved Lists | synonym |
| "Actinomyces lavendofoliae" Kuchaeva et al. 1961 | not validly published, basonym of name in Approved Lists | synonym |
| "Actinomyces lavendulae" Waksman and Curtis 1916 | not validly published, basonym of name in Approved Lists | synonym |
| "Actinomyces lavendularectus" Krassilnikov and Kuchaeva 1964 | not validly published | synonym |
| "Actinomyces lavendulocolor" Kuchaeva et al. 1961 | not validly published, basonym of name in Approved Lists | synonym |
| "Actinomyces lazureus" Krassilnikov et al. 1965 | not validly published | synonym |
| "Actinomyces levoris" Koreniako et al. 1960 | not validly published | synonym |
| "Actinomyces levoris" Krassilnikov 1958 | not validly published | synonym |
| "Actinomyces lilacinofulvus" Yen and Chou 1964 | not validly published | synonym |
| "Actinomyces lilacinus" Yen 1956 | not validly published | preferred name |
| Actinomyces lilanjuaniae Li et al. 2019 | validly published under the ICNP | correct name |
| "Actinomyces lingnae" Clarridge and Zhang 2002 | not validly published | preferred name |
| "Actinomyces lipmanii" Waksman and Curtis 1916 | not validly published, basonym of name in Approved Lists | synonym |
| "Actinomyces litmocidini" Ryabova and Preobrazhenskaya 1957 | not validly published, basonym of name in Approved Lists | synonym |
| "Actinomyces litmocolor" Krassilnikov 1970 | not validly published | preferred name |
| "Actinomyces litmotinctus" Krassilnikov 1970 | not validly published | preferred name |
| Actinomyces liubingyangii Meng et al. 2017 | validly published under the ICNP | synonym |
| "Actinomyces lividans" Krassilnikov et al. 1965 | not validly published | synonym |
| "Actinomyces lividans" Krassilnikov 1965 | not validly published | synonym |
| "Actinomyces longisporinus" Krassilnikov 1970 | not validly published | preferred name |
| "Actinomyces longisporus" Krassilnikov 1941 | not validly published, basonym of name in Approved Lists | synonym |
| "Actinomyces longissimus" Krassilnikov and Yuan 1965 | not validly published | preferred name |
| "Actinomyces luridus" Krassilnikov et al. 1957 | not validly published, basonym of name in Approved Lists | synonym |
| "Actinomyces luteolutescens" Yen 1956 | not validly published | synonym |
| "Actinomyces malachiticus" Preobrazhenskaya and Ryabova 1957 | not validly published | preferred name |
| "Actinomyces malachitorectus" Preobrazhenskaya et al. 1964 | not validly published | synonym |
| "Actinomyces malachitospinus" Preobrazhenskaia et al. 1975 | not validly published | synonym |
| "Actinomyces mannitorapidus" Krassilnikov 1970 | not validly published | preferred name |
| Actinomyces marimammalium Hoyles et al. 2001 | validly published under the ICNP | synonym |
| Actinomyces marmotae Yang et al. 2021 | validly published under the ICNP | correct name |
| "Actinomyces marseillensis" Fonkou et al. 2018 | not validly published | synonym |
| Actinomyces marseillensis Mbogning Fonkou et al. 2026 | validly published under the ICNP | correct name |
| Actinomyces massiliensis Renvoise et al. 2009 | validly published under the ICNP | correct name |
| "Actinomyces mediterranea" Mbogning Fonkou et al. 2018 | not validly published | preferred name |
| "Actinomyces mellinus" Maksimova et al. 1965 | not validly published | synonym |
| Actinomyces meyeri (ex Prévot 1938) Cato et al. 1984 | validly published under the ICNP | synonym |
| "Actinomyces microflavus" Krainsky 1914 | not validly published, basonym of name in Approved Lists | synonym |
| "Actinomyces minihominis" Bilen et al. 2018 | not validly published | preferred name |
| "Actinomyces mutabilis" Preobrazhenskaya and Ryabova 1957 | not validly published, basonym of name in Approved Lists | synonym |
| "Actinomyces mycolyticus" Krassilnikov 1970 | not validly published | preferred name |
| Actinomyces naeslundi Thompson and Lovestedt 1951 (Approved Lists 1980) | inaccurate spelling | misspelling |
| Actinomyces naeslundii corrig. Thompson and Lovestedt 1951 (Approved Lists 1980) | validly published under the ICNP | correct name |
| "Actinomyces naphteutilis" Krassilnikov 1970 | not validly published | preferred name |
| Actinomyces nasicola Hall et al. 2003 | validly published under the ICNP | synonym |
| Actinomyces naturae Rao et al. 2012 | validly published under the ICNP | synonym |
| Actinomyces neuii Funke et al. 1994 | validly published under the ICNP | synonym |
| "Actinomyces nigrescens" Sveshnikova 1957 | not validly published, basonym of name in Approved Lists | synonym |
| "Actinomyces nigrogriseolus" Yen and Chou 1964 | not validly published | synonym |
| "Actinomyces nitrohostilis" Krassilnikov 1970 | not validly published | preferred name |
| Actinomyces odontolyticus Batty 1958 (Approved Lists 1980) | validly published under the ICNP | synonym |
| "Actinomyces olivaceoviridis" Preobrazhenskaya and Ryabova 1957 | not validly published, basonym of name in Approved Lists | synonym |
| "Actinomyces olivaceus" Waksman 1923 | not validly published, basonym of name in Approved Lists | synonym |
| "Actinomyces olivarius" Kutchayeva et al. 1960 | not validly published | synonym |
| "Actinomyces olivochromogenus" Waksman 1923 | not validly published, basonym of name in Approved Lists | synonym |
| "Actinomyces olivoviridis" Kuchaeva et al. 1960 | not validly published, basonym of name in Approved Lists | synonym |
| Actinomyces oralis Mbogning Fonkou et al. 2026 | validly published under the ICNP | correct name |
| "Actinomyces oralis" Fonkou et al. 2018 | not validly published | synonym |
| Actinomyces oricola Hall et al. 2003 | validly published under the ICNP | correct name |
| Actinomyces oris Henssge et al. 2009 | validly published under the ICNP | correct name |
| "Actinomyces pacaensis" Fonkou et al. 2018 | not validly published | preferred name |
| "Actinomyces parvus" Krainsky 1914 | not validly published, basonym of name in Approved Lists | synonym |
| "Actinomyces phaeochromogenes" corrig. Conn 1917 | not validly published, basonym of name in Approved Lists | synonym |
| "Actinomyces pheochromogenus" Conn 1917 | inaccurate spelling | misspelling |
| "Actinomyces pneumonicus" Krassilnikov et al. 1960 | not validly published | synonym |
| "Actinomyces polycolor" Krassilnikov 1970 | not validly published | preferred name |
| "Actinomyces polynesiensis" Cimmino et al. 2016 | not validly published | preferred name |
| "Actinomyces pontae" Krassilnikov 1970 | not validly published | preferred name |
| "Actinomyces praecox" Millard and Burr 1926 | not validly published, basonym of name in Approved Lists | synonym |
| Actinomyces procaprae Yang et al. 2021 | validly published under the ICNP | correct name |
| "Actinomyces propionicus" Buchanan and Pine 1962 | not validly published, basonym of name in Approved Lists | synonym |
| "Actinomyces provencensis" Ndongo et al. 2017 | not validly published | preferred name |
| "Actinomyces prunicolor" Ryabova and Preobrazhenskaya 1957 | not validly published, basonym of name in Approved Lists | synonym |
| "Actinomyces pseudoalbus" Krassilnikov 1970 | not validly published | preferred name |
| "Actinomyces pseudovenezuelae" Kuchaeva et al. 1961 | not validly published, basonym of name in Approved Lists | synonym |
| "Actinomyces purpeochromogenus" Waksman and Curtis 1916 | inaccurate spelling | misspelling |
| "Actinomyces purpureochromogenes" corrig. Waksman and Curtis 1916 | not validly published, basonym of name in Approved Lists | synonym |
| "Actinomyces purpureus" Breed et al. 1948 | not validly published | preferred name |
| Actinomyces pyogenes (Glage 1903) Collins and Jones 1983 | validly published under the ICNP, illegitimate name | synonym |
| Actinomyces pyogenes (Glage 1903) Reddy et al. 1982 | validly published under the ICNP | synonym |
| Actinomyces qiguomingii Zhu et al. 2020 | validly published under the ICNP | correct name |
| Actinomyces radicidentis Collins et al. 2001 | validly published under the ICNP | correct name |
| Actinomyces radingae Wüst et al. 1995 | validly published under the ICNP | synonym |
| "Actinomyces raffinosus" Krassilnikov 1958 | not validly published | synonym |
| "Actinomyces rangoon" Erikson 1935 | inaccurate spelling | misspelling |
| "Actinomyces rangoonensis" corrig. Erikson 1935 | not validly published, basonym of name in Approved Lists | synonym |
| "Actinomyces rectiverticillatus" Krassilnikov and Yuan 1965 | not validly published, basonym of name in Approved Lists | synonym |
| "Actinomyces rectiverticillatus" Krassilnikov 1965 | not validly published | synonym |
| "Actinomyces rectiviolaceus" Artamonova 1965 | not validly published | synonym |
| Actinomyces respiraculi Zhou et al. 2021 | validly published under the ICNP | correct name |
| "Actinomyces robefuscus" Krassilnikov and Vinogradova 1960 | not validly published | synonym |
| "Actinomyces robeus" Krassilnikov and Vinogradova 1960 | not validly published | synonym |
| "Actinomyces roseodiastaticus" Duché 1934 | not validly published, basonym of name in Approved Lists | synonym |
| "Actinomyces roseofulvus" Preobrazhenskaya 1957 | not validly published, basonym of name in Approved Lists | synonym |
| "Actinomyces roseogriseolus" Yen and Chou 1964 | not validly published | synonym |
| "Actinomyces roseogriseus" Yen and Chou 1964 | not validly published | synonym |
| "Actinomyces roseolilacinus" Preobrazhenskaya and Sveshnikova 1957 | not validly published, basonym of name in Approved Lists | synonym |
| "Actinomyces roseolus" Preobrazhenskaya and Sveshnikova 1957 | not validly published, basonym of name in Approved Lists | synonym |
| "Actinomyces roseoviolaceus" Sveshnikova 1957 | not validly published, basonym of name in Approved Lists | synonym |
| "Actinomyces roseoviridis" Preobrazhenskaya 1957 | not validly published, basonym of name in Approved Lists | synonym |
| "Actinomyces rubiginosohelvolus" Kudrina 1957 | not validly published, basonym of name in Approved Lists | synonym |
| "Actinomyces rubiginosus" Preobrazhenskaya et al. 1957 | not validly published, basonym of name in Approved Lists | synonym |
| "Actinomyces rubrocyaneus" Krassilnikov and Hussein 1965 | not validly published | preferred name |
| "Actinomyces rubrolavendulae" Yen 1957 | not validly published | synonym |
| "Actinomyces rubroverticillatus" Yen 1956 | not validly published | preferred name |
| Actinomyces ruminicola An et al. 2006 | validly published under the ICNP | correct name |
| "Actinomyces ruminis" Lanjekar et al. 2022 | not validly published | preferred name |
| "Actinomyces rutgersensis" Waksman and Curtis 1916 | not validly published, basonym of name in Approved Lists | synonym |
| "Actinomyces sampsonii" Millard and Burr 1926 | not validly published, basonym of name in Approved Lists | synonym |
| "Actinomyces setonii" Millard and Burr 1926 | not validly published, basonym of name in Approved Lists | synonym |
| Actinomyces slackii Dent and Williams 1986 | validly published under the ICNP | correct name |
| "Actinomyces spinosus" Preobrazhenskaya 1966 | not validly published | synonym |
| "Actinomyces sporofillaris" Krassilnikov 1970 | not validly published | preferred name |
| Actinomyces stomatis Tian et al. 2024 | validly published under the ICNP | correct name |
| "Actinomyces subflavus" Krassilnikov et al. 1965 | not validly published | synonym |
| "Actinomyces succiniciruminis" Palakawong Na Ayudthaya et al. 2016 | not validly published | preferred name |
| Actinomyces suimastitidis Hoyles et al. 2001 | validly published under the ICNP | synonym |
| Actinomyces suis (Wegienek and Reddy 1982 ex Soltys and Spratling 1957) Ludwig et al. 1992 | validly published under the ICNP | synonym |
| "Actinomyces sulphureus" Gasperini 1894 | not validly published, basonym of name in Approved Lists | synonym |
| "Actinomyces syringae" Kuchaeva et al. 1961 | not validly published | synonym |
| Actinomyces tangfeifanii Meng et al. 2018 | validly published under the ICNP | synonym |
| "Actinomyces tauricus" Ivanitskaya et al. 1966 | not validly published | synonym |
| "Actinomyces thalassinus" Krassilnikov 1970 | not validly published | preferred name |
| "Actinomyces thermodiastaticus" Bergey et al. 1923 | not validly published, basonym of name in Approved Lists | synonym |
| "Actinomyces thermoflavus" Kudrina and Maksimova 1963 | not validly published | synonym |
| Actinomyces timonensis Renvoise et al. 2010 | validly published under the ICNP | correct name |
| "Actinomyces toxicus" Krassilnikov 1958 | not validly published | synonym |
| "Actinomyces toxytricini" Preobrazhenskaya and Sveshnikova 1957 | not validly published, basonym of name in Approved Lists | synonym |
| Actinomyces trachealis Zhou et al. 2021 | validly published under the ICNP | correct name |
| "Actinomyces transvalensis" (Pijper and Pullinger 1927) Hauduroy et al. 1953 | not validly published | preferred name |
| "Actinomyces tricolor" Wollenweber 1920 | not validly published, basonym of name in Approved Lists | synonym |
| "Actinomyces tumemacerans" Krassilnikov and Koveshnikov 1962 | not validly published | synonym |
| Actinomyces turicensis Wüst et al. 1995 | validly published under the ICNP | synonym |
| "Actinomyces umbrilatus" Krassilnikov 1970 | not validly published | preferred name |
| "Actinomyces umbrinus" Sveshnikova 1957 | not validly published, basonym of name in Approved Lists | synonym |
| "Actinomyces urinae" Mbogning Fonkou et al. 2018 | not validly published | preferred name |
| "Actinomyces urinae" Morand et al. 2016 | not validly published | synonym |
| Actinomyces urogenitalis Nikolaitchouk et al. 2000 | validly published under the ICNP | correct name |
| Actinomyces vaccimaxillae Hall et al. 2003 | validly published under the ICNP | synonym |
| "Actinomyces valynus" Preobrazhenskaya 1966 | not validly published | synonym |
| "Actinomyces variabilis" Preobrazhenskaya et al. 1957 | not validly published, basonym of name in Approved Lists | synonym |
| "Actinomyces violaceochromogenes" Ryabova and Preobrazhenskaya 1957 | not validly published, basonym of name in Approved Lists | synonym |
| "Actinomyces violaceolatus" Krassilnikov 1965 | not validly published | synonym |
| "Actinomyces violaceolatus" Krassilnikov et al. 1965 | not validly published, basonym of name in Approved Lists | synonym |
| "Actinomyces violaceorectus" Ryabova and Preobrazhenskaya 1957 | not validly published, basonym of name in Approved Lists | synonym |
| "Actinomyces violaceusniger" Waksman and Curtis 1916 | not validly published, basonym of name in Approved Lists | synonym |
| "Actinomyces violaceusruber" Waksman and Curtis 1916 | not validly published, basonym of name in Approved Lists | synonym |
| "Actinomyces violans" Artamonova and Krassilnikov 1960 | not validly published | synonym |
| "Actinomyces violarus" Artamonova and Krassilnikov 1960 | not validly published, basonym of name in Approved Lists | synonym |
| "Actinomyces violascens" Preobrazhenskaya and Sveshnikova 1957 | not validly published, basonym of name in Approved Lists | synonym |
| "Actinomyces violatus" Artamonova and Krassilnikov 1960 | not validly published, basonym of name in Approved Lists | synonym |
| "Actinomyces viridaris" Krassilnikov and Yegorova 1965 | not validly published | synonym |
| "Actinomyces viridiviolaceus" Ryabova and Preobrazhenskaya 1957 | not validly published, basonym of name in Approved Lists | synonym |
| "Actinomyces viridochromogenes" Krainsky 1914 | not validly published, basonym of name in Approved Lists | synonym |
| "Actinomyces viridodiastaticus" Baldacci et al. 1955 | not validly published, basonym of name in Approved Lists | synonym |
| "Actinomyces virocidus" Kuchaeva et al. 1961 | not validly published | synonym |
| "Actinomyces virusinus" Kuchaeva 1964 | not validly published | synonym |
| Actinomyces viscosus (Howell et al. 1965) Georg et al. 1969 (Approved Lists 1980) | validly published under the ICNP | correct name |
| "Actinomyces vulgaris" Nikitina et al. 1960 | not validly published | synonym |
| Actinomyces vulturis Meng et al. 2017 | validly published under the ICNP | correct name |
| Actinomyces weissii Hijazin et al. 2012 | validly published under the ICNP | correct name |
| "Actinomyces willmorei" Erikson 1935 | not validly published, basonym of name in Approved Lists | synonym |
| Actinomyces wuliandei Zhu et al. 2020 | validly published under the ICNP | correct name |
| "Actinomyces xantholiticus" Konev and Tsyganov 1962 | not validly published, basonym of name in Approved Lists | synonym |
Parent taxon: Actinomycetaceae Buchanan 1918 (Approved Lists 1980)
Assigned by:
Waksman SA. Family Actinomycetaceae Buchanan and family Steptomycetaceae Waksman and Henrici. In: Breed RS, Murray EGD, Smith NR (eds), Bergey's Manual of Determinative Bacteriology, 7th edition, The Williams & Wilkins Co, Baltimore, 1957, p. 744-825.
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