Name: Clostridium Prazmowski 1880 (Approved Lists 1980)

Category: Genus

Proposed as: gen. nov.

Etymology: Clos.tri’di.um. Gr. masc. n. klôstêr, a spindle; N.L. neut. dim. n. Clostridium, a small spindle

Gender: neuter (stem: Clostridi-)

Type species: Clostridium butyricum Prazmowski 1880 (Approved Lists 1980)

Conduct genome-based taxonomy of genus at TYGS

16S rRNA gene: Analyse FASTA

Effective publication: Prazmowski A. Untersuchung über die Entwickelungsgeschichte und Fermentwirkung einiger Bacterien-Arten. Inaugural Dissertation. Hugo Voigt, Leipzig, 1880.

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

Risk group: 2

• Synonyms:

  • Name	Kind
    "Lachnoclostridium" Yutin and Galperin 2013	heterotypic synonym, not validly published
    "Pseudoclostridium" Zhang et al. 2018	heterotypic synonym, not validly published
    Anaerobacter Duda et al. 1996	heterotypic synonym, validly published under the ICNP
    "Tyzzerella" Yutin and Galperin 2013	heterotypic synonym, not validly published
    "Inflabilis" Prévot 1938	heterotypic synonym, not validly published

• Emendations:
  • Lawson and Rainey 2016 Lawson PA, Rainey FA. Proposal to restrict the genus Clostridium Prazmowski to Clostridium butyricum and related species. Int J Syst Evol Microbiol 2016; 66:1009-1016. Oren A, Garrity GM. Notification list. Notification that new names and new combinations have appeared in volume 66, part 2 of the IJSEM. Int J Syst Evol Microbiol 2016; 66:1916-1919.
    Notes:
    • ⊖ Emendation accompanied by the removal of 3 species from the genus.
    • ⊕ Emendation accompanied by the proposal of 4 new species in the genus.

• Notes:
  • 🥇 Nomenclatural type of the class Clostridia Rainey 2010. Publication: Rainey FA. Class II. Clostridia 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. 736.
  • 🥇 Nomenclatural type of the family Clostridiaceae Pribram 1933 (Approved Lists 1980). Publication: Pribram E. Klassification der Schizomyceten. F. Deuticke, Leipzig, 1933.
  • 🥇 Nomenclatural type of the order Clostridiales Prévot 1953 (Approved Lists 1980). Publication: Prévot AR. B. In: Hauduroy P, Ehringer G, Guillot G, Magrou J, Prévot AR, Rosset, Urbain A (eds), Dictionnaire des bacteries pathogenes. 2nd ed., Masson, Paris, 1953, p. 692.
  • 🧕 Bergey et al. (1923) assigned this genus to the family Bacillaceae Fischer 1895 (Approved Lists 1980). Publication: Waksman SA. Genus III. Actinomyces Harz,. In: Bergey DH, Harrison FC, Breed RS, Hammer BW, Huntoon FM (eds), Bergey's Manual of Determinative Bacteriology, 1st ed., The Williams & Wilkins Co, Baltimore, 1923, p. 339-371.
  • 🧕 Breed et al. (1948) assigned this genus to the family Bacillaceae Fischer 1895 (Approved Lists 1980). Publication: Spray RS. Genus II. Clostridium Prazmowski. In: Breed RS, Murray EGD, Hitchens AP (eds), Bergey's Manual of Determinative Bacteriology, 6th ed., The Williams & Wilkins Co, Baltimore, 1948, p. 763-827.
  • 🧕 Breed et al. (1957) assigned this genus to the family Bacillaceae Fischer 1895 (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.
  • 🧕 Cavalier-Smith (1981) assigned this genus to the subkingdom "Eubacteria" Cavalier-Smith 1981. Publication: Cavalier-Smith T. Eukaryote kingdoms: seven or nine? Biosystems 1981; 14:461-481.
  • 🧕 Cavalier-Smith (2002) assigned this genus to the class Teichobacteria Cavalier-Smith 2002. Publication: Cavalier-Smith T. The neomuran origin of archaebacteria, the negibacterial root of the universal tree and bacterial megaclassification. Int J Syst Evol Microbiol 2002; 52:7-76.
  • 🧕 Hildebrand et al. (2019) assigned this genus to the family "Erisaceae" Hildebrand et al. 2019. Publication: Hildebrand F, Moitinho-Silva L, Blasche S, Jahn MT, Gossmann TI, Huerta-Cepas J, Hercog R, Luetge M, Bahram M, Pryszlak A, et al. Antibiotics-induced monodominance of a novel gut bacterial order. Gut 2019; 68:1781-1790.
  • 🧕 Kluyver and Van Niel (1936) assigned this genus to the tribe "Bacilleae". Publication: Kluyver AJ, Van Niel CB. Prospects for a natural system of classification of bacteria. Zentralblatt für Bakteriologie, Parasitenkunde, Infektionskrankheiten und Hygiene, Abteilung II 1936; 94:369-403.
  • 🧕 Orla-Jensen (1921) assigned this genus to the order "Peritrichinales" Orla-Jensen 1921. Publication: Orla-Jensen S. The Main Lines of the Natural Bacterial System. J Bacteriol 1921; 6:263-273.
  • 🧕 Prevot (1953) assigned this genus to the order Clostridiales Prévot 1953 (Approved Lists 1980). Publication: Prévot AR. B. In: Hauduroy P, Ehringer G, Guillot G, Magrou J, Prévot AR, Rosset, Urbain A (eds), Dictionnaire des bacteries pathogenes. 2nd ed., Masson, Paris, 1953, p. 692.
  • 🧕 Schröter (1886) assigned this genus to the uncategorized "Eubacteria" Schroeter 1886. Publication: Schroeter J. Schizomycetes (1886), pp. 131-256. In: Cohn F (eds), Kryptogamen-Flora von Schlesien, Band 3, Heft 3, Pilze, Max Müller, Breslau, 1889, p. 1-814.
  • 🧕 Winslow et al. (1920) assigned this genus to the family Bacillaceae Fischer 1895 (Approved Lists 1980). Publication: Winslow CE, Broadhurst J, Buchanan RE, Krumwiede C, Rogers LA, Smith GH. The Families and Genera of the Bacteria: Final Report of the Committee of the Society of American Bacteriologists on Characterization and Classification of Bacterial Types. J Bacteriol 1920; 5:191-229.
  • 🙄 This taxon name is occasionally misprinted (or affected by an OCR error) in some sources as: "Cbstridium"; "Cfostridium"; "Cfostridiurn"; "Ciastridium"; "Cicstridium"; "Ciostridium"; "Clasiridium"; "Claslridium"; "Clasrridium"; "Classridium"; "Clastridium"; "Clastridlum"; "Clastridum"; "Claszridium"; "Clcstridium"; "Clestridium"; "Clmtridium"; "Clnstridium"; "Clnstrirlium"; "Cloairidium"; "Cloalridium"; "Cloatridium"; "Cloctridium"; "Clodtridium"; "Cloetridium"; "Clogtridium"; "Cloistridium"; "Clomridium"; "Closaridium"; "Closbidium"; "Closcridium"; "Closeridium"; "Closfridium"; "Closhidium"; "Closhidiurn"; "Closiridium"; "Closiridiurn"; "Closiridnun"; "Closlidium"; "Closlriclium"; "Closlridium"; "Closlridlum"; "Closlritlium"; "Closlrldium"; "Closmdium"; "Closnidium"; "Closnridium"; "Closrridium"; "Closrtidum"; "Closrtridium"; "Clostdium"; "Closteridium"; "Closthdium"; "Clostiridium"; "Clostiudium"; "Clostmdium"; "Clostndium"; "Clostrdidium"; "Clostrdium"; "Clostrfdium"; "Clostrfrhum"; "Clostriaium"; "Clostriclium"; "Clostridfum"; "Clostridiam"; "Clostridiirm"; "Clostridiirvli"; "Clostridiitm"; "Clostridiium"; "Clostridiunz"; "Clostridiunza"; "Clostridiura"; "Clostridiurn"; "Clostridiwn"; "Clostridizlm"; "Clostridlum"; "Clostridum"; "Clostriflium"; "Clostriilium"; "Clostrilzium"; "Clostrirlium"; "Clostritlium"; "Clostrium"; "Clostrkiium"; "Clostrlclium"; "Clostrldium"; "Clostrtdium"; "Clostrzdium"; "Clostvidium"; "Clostvidiurn"; "Closuidium"; "Closzridium"; "Clotridium"; "Clotstridium"; "Cloxlridium"; "Cloxtridium"; "Cloxzridium"; "Clstridium"; "Clusiridium"; "Cluslridium"; "Clustriclium"; "Clustridium"; "Clustridlum"; "Clustrldium"; "Cluszridium"; "Clvstridium"; "Colostridium"; "Costridium"; "Ctostridium"; "Cwstridium"; "Czoostridium"; "Czostridium"; "Elostridium"; "Glostridium"; "Ilastridium"; "Iostridium"; "Jostridium"; "Olostridium"; "Oostridium"; "Ostridium"; "Pleotridium"; "Qstridium"; "Ulostridium".
  • 🧔 This taxon was discussed in a meeting of a Taxonomic Subcommittee of the ICSP. Publication: Olsen I, Shah HN. International Committee on Systematics of Prokaryotes; Subcommittee on the taxonomy of Gram-negative anaerobic rods. Int J Syst Evol Microbiol 2008; 58:1051-1055.
  • 🧔 This taxon was discussed in a meeting of a Taxonomic Subcommittee of the ICSP. Publication: Olsen I, Shah HN. International Committee on Systematics of Prokaryotes Subcommittee on the taxonomy of Gram-negative anaerobic rods. Minutes of the meeting, 29 July 2002, Paris, France. Int. J. Syst. Evol. Microbiol. 2003; 53:923-924.
  • 💁 Taxonomists who have recently focused on this group are the corresponding authors of Li et al. (2022), Kitahara et al. (2001), Broda et al. (2000), Clavel et al. (2007), Chamkha 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 BRCs most frequently used for deposits in this group are: DSM: 269; ATCC: 186; JCM: 115; CCUG: 56; CIP: 46; NCIMB: 45; NCTC: 45; BCRC: 28; KCTC: 28; CCRC: 26.
  • 😷 The risk group for Canada has been imported on 2024-02-27. The full classification is: risk group = 2, note = "default: 2 Animal classification RG: 2 - Security sensitive biological agent: No - Terrestrial animal pathogen under Canadian Food Inspection Agency authority: No - Containment level: Containment Level 2; MP: 1 Animal classification RG: 1 - Security sensitive biological agent: No - Terrestrial animal pathogen under Canadian Food Inspection Agency authority: No - Containment level: Containment Level 1". — The risk group for France has been imported on 2024-08-30. The full classification is: risk group = 2. — The risk group for Sweden has been imported on 2024-02-05. The full classification is: risk group = 2, note = "T, V". — The risk group for Taiwan has been imported on 2024-11-03. The full classification is: risk group = 1, note = "P650 = v". — The risk group for United Kingdom has been imported on 2024-01-31. The full classification is: risk group = 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 "CLOS" 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.
  • 🧍 See also Hatheway (1990). Publication: Hatheway CL. Toxigenic clostridia. Clin Microbiol Rev 1990; 3:66-98.

Subdivision:

Number of child taxa with a validly published and correct name: 165
Number of child taxa with a validly published name, including synonyms: 268
Total number of child taxa: 346

• Child taxa:

  • Name	Nomenclatural status	Taxonomic status
    Clostridium absonum Nakamura et al. 1973 (Approved Lists 1980)	validly published under the ICNP	synonym
    Clostridium aceticum (ex Wieringa 1940) Gottschalk and Braun 1981	validly published under the ICNP	correct name
    Clostridium acetireducens Örlygsson et al. 1996	validly published under the ICNP	correct name
    Clostridium acetobutylicum McCoy et al. 1926 (Approved Lists 1980)	validly published under the ICNP	correct name
    Clostridium acidisoli Kuhner et al. 2000	validly published under the ICNP	correct name
    Clostridium aciditolerans Lee et al. 2007	validly published under the ICNP	correct name
    Clostridium acidiurici (Liebert 1909) Barker 1938 (Approved Lists 1980)	inaccurate spelling	misspelling
    Clostridium acidurici corrig. (Liebert 1909) Barker 1938 (Approved Lists 1980)	validly published under the ICNP	synonym
    Clostridium aerotolerans van Gylswyk and van der Toorn 1987	validly published under the ICNP	synonym
    Clostridium aestuarii Kim et al. 2007	validly published under the ICNP	correct name
    Clostridium akagii Kuhner et al. 2000	validly published under the ICNP	correct name
    "Clostridium alcaliphilum" Wildeboer-Veloo et al. 2007	not validly published	preferred name (not correct name)
    Clostridium aldenense Warren et al. 2007	validly published under the ICNP	synonym
    Clostridium aldrichii Yang et al. 1990	validly published under the ICNP	synonym
    Clostridium algidicarnis Lawson et al. 1995	validly published under the ICNP	correct name
    Clostridium algidixylanolyticum Broda et al. 2000	validly published under the ICNP	synonym
    Clostridium algifaecis Wu et al. 2014	validly published under the ICNP	correct name
    Clostridium algoriphilum Shcherbakova et al. 2010	validly published under the ICNP	correct name
    Clostridium alkalicellulosi corrig. Zhilina et al. 2006	validly published under the ICNP	synonym
    Clostridium alkalicellum Zhilina et al. 2006	inaccurate spelling	misspelling
    Clostridium amazonense O'Neal et al. 2015	validly published under the ICNP	correct name
    "Clostridium amazonitimonense" Alou et al. 2018	not validly published	preferred name (not correct name)
    "Clostridium aminobutyricum" Hardman and Stadtman 1960	not validly published	preferred name (not correct name)
    Clostridium aminophilum Paster et al. 1993	validly published under the ICNP	correct name
    Clostridium aminovalericum Hardman and Stadtman 1960 (Approved Lists 1980)	validly published under the ICNP	synonym
    Clostridium ammoniilyticum Hitch et al. 2022	validly published under the ICNP	correct name
    Clostridium amygdalinum Parshina et al. 2003	validly published under the ICNP	synonym
    Clostridium amylolyticum Song and Dong 2008	validly published under the ICNP	correct name
    "Candidatus Clostridium anorexicum" corrig. Pfleiderer et al. 2013	not validly published	pro-correct name
    "Candidatus Clostridium anorexicus" Pfleiderer et al. 2013	inaccurate spelling	misspelling
    Clostridium aquiflavi Sun et al. 2024	validly published under the ICNP	correct name
    Clostridium arbusti Jung et al. 2010	validly published under the ICNP	correct name
    Clostridium arcticum (ex Jordan and McNicol 1979) Cato et al. 1988	validly published under the ICNP	correct name
    "Clostridium arcticum" Jordan and McNicol 1979	not validly published	synonym (and no standing)
    Clostridium argentinense Suen et al. 1988	validly published under the ICNP	correct name
    Clostridium aromativorans Luo et al. 2024	validly published under the ICNP	correct name
    Clostridium asparagiforme Mohan et al. 2007	validly published under the ICNP	synonym
    Clostridium aurantibutyricum Hellinger 1944 (Approved Lists 1980)	validly published under the ICNP	synonym
    "Clostridium autoethanogenum" Abrini et al. 1994	not validly published	preferred name (not correct name)
    Clostridium barati (Prévot 1938) Holdeman and Moore 1970 (Approved Lists 1980)	inaccurate spelling	misspelling
    Clostridium baratii corrig. (Prévot 1938) Holdeman and Moore 1970 (Approved Lists 1980)	validly published under the ICNP	correct name
    Clostridium barkeri Stadtman et al. 1972 (Approved Lists 1980)	validly published under the ICNP	synonym
    Clostridium bartlettii Song et al. 2004	validly published under the ICNP	synonym
    Clostridium beihaiense Dong et al. 2018	validly published under the ICNP	correct name
    Clostridium beijerinckii Donker 1926 (Approved Lists 1980)	validly published under the ICNP	correct name
    Clostridium bifermentans (Weinberg and Séguin 1918) Bergey et al. 1923 (Approved Lists 1980)	validly published under the ICNP	synonym
    Clostridium bolteae Song et al. 2003	validly published under the ICNP	synonym
    Clostridium bornimense Hahnke et al. 2014	validly published under the ICNP	correct name
    Clostridium botulinum (van Ermengem 1896) Bergey et al. 1923 (Approved Lists 1980)	validly published under the ICNP, conserved name	correct name
    Clostridium bovifaecis Zhu et al. 2018	validly published under the ICNP	correct name
    Clostridium bowmanii Spring et al. 2003	validly published under the ICNP	correct name
    "Clostridium brassicae" Wang et al. 2023	not validly published	preferred name (not correct name)
    Clostridium bryantii Stieb and Schink 1985	validly published under the ICNP	synonym
    Clostridium budayi (Le Blaye and Guggenheim 1914) Bernard et al. 2018	validly published under the ICNP	correct name
    Clostridium butanoliproducens Rios-Galicia et al. 2024	validly published under the ICNP	correct name
    Clostridium butyricum Prazmowski 1880 (Approved Lists 1980)	validly published under the ICNP	correct name
    Clostridium cadaveris (Klein 1899) McClung and McCoy 1957 (Approved Lists 1980)	validly published under the ICNP	correct name
    Clostridium caenicola Shiratori et al. 2009	validly published under the ICNP	synonym
    "Clostridium cagae" Tall et al. 2020	not validly published	preferred name (not correct name)
    Clostridium caldaquaticum Lv et al. 2023	validly published under the ICNP	correct name
    Clostridium caminithermale Brisbarre et al. 2003	validly published under the ICNP	synonym
    Clostridium carboxidivorans Liou et al. 2005	validly published under the ICNP	correct name
    Clostridium carnis (Klein 1904) Spray 1939 (Approved Lists 1980)	validly published under the ICNP	correct name
    Clostridium cavendishii Bowman et al. 2010	validly published under the ICNP	correct name
    Clostridium celatum Hauschild and Holdeman 1974 (Approved Lists 1980)	validly published under the ICNP	correct name
    Clostridium celerecrescens Palop et al. 1989	validly published under the ICNP	synonym
    Clostridium cellobioparum Hungate 1944 (Approved Lists 1980)	validly published under the ICNP	synonym
    "Clostridium cellulofermentans" He et al. 1991	not validly published	preferred name (not correct name)
    Clostridium cellulolyticum Petitdemange et al. 1984	validly published under the ICNP	synonym
    Clostridium cellulosi He et al. 1991	validly published under the ICNP	correct name
    Clostridium cellulovorans Sleat et al. 1985	validly published under the ICNP	correct name
    Clostridium chartatabidum Kelly et al. 1996	validly published under the ICNP	correct name
    Clostridium chauvoei (Arloing et al. 1887) Scott 1928 (Approved Lists 1980)	validly published under the ICNP	correct name
    "Clostridium chitinophilum" Billy 1968	not validly published	preferred name (not correct name)
    Clostridium chromiireducens Inglett et al. 2011	validly published under the ICNP	correct name
    "Clostridium chromoreductans" Sharma 2002	not validly published	preferred name (not correct name)
    Clostridium chrysemydis Hunter et al. 2021	validly published under the ICNP	correct name
    "Clostridium cibarium" Gilroy et al. 2021	not validly published	preferred name (not correct name)
    Clostridium citroniae Warren et al. 2007	validly published under the ICNP	synonym
    Clostridium clariflavum Shiratori et al. 2009	validly published under the ICNP	synonym
    Clostridium clostridiiforme (Burri and Ankersmit 1906) Kaneuchi et al. 1976 (Approved Lists 1980)	inaccurate spelling	misspelling
    Clostridium clostridioforme corrig. (Burri and Ankersmit 1906) Kaneuchi et al. 1976 (Approved Lists 1980)	validly published under the ICNP	synonym
    Clostridium coccoides Kaneuchi et al. 1976 (Approved Lists 1980)	validly published under the ICNP	synonym
    Clostridium cochlearium (Douglas et al. 1919) Bergey et al. 1923 (Approved Lists 1980)	validly published under the ICNP	correct name
    Clostridium cocleatum Kaneuchi et al. 1979 (Approved Lists 1980)	validly published under the ICNP	synonym
    Clostridium colicanis Greetham et al. 2003	validly published under the ICNP	correct name
    Clostridium colinum (ex Berkhoff et al. 1974) Berkhoff 1985	validly published under the ICNP	correct name
    Clostridium collagenovorans Jain and Zeikus 1988	validly published under the ICNP	correct name
    Clostridium combesii (Prévot and Laplanche 1947) Bernard et al. 2018	validly published under the ICNP	correct name
    Clostridium composti Shin et al. 2018	validly published under the ICNP	correct name
    "Clostridium coskatii" Flüchter et al. 2019	not validly published	preferred name (not correct name)
    "Clostridium crotonatovorans" Kim et al. 2013	not validly published	preferred name (not correct name)
    "Clostridium culturomicium" Kieu et al. 2021	not validly published	preferred name (not correct name)
    "Clostridium culturomicum" Pham et al. 2017	not validly published	preferred name (not correct name)
    "Clostridium cuniculi" Djukovic et al. 2018	not validly published	preferred name (not correct name)
    Clostridium cylindrosporum (ex Barker and Beck 1942) Andreesen et al. 1985	validly published under the ICNP	correct name
    "Clostridium dakarense" Lo et al. 2013	not validly published	synonym (and no standing)
    Clostridium difficile (Hall and O'Toole 1935) Prévot 1938 (Approved Lists 1980)	validly published under the ICNP	synonym
    Clostridium diolis Biebl and Spröer 2003	validly published under the ICNP	synonym
    Clostridium disporicum Horn 1987	validly published under the ICNP	correct name
    Clostridium drakei Liou et al. 2005	validly published under the ICNP	correct name
    Clostridium durum Smith and Cato 1974 (Approved Lists 1980)	validly published under the ICNP	synonym
    Clostridium estertheticum Collins et al. 1993	validly published under the ICNP	correct name
    Clostridium facile Liu et al. 2022	validly published under the ICNP	correct name
    "Clostridium faecium" Gilroy et al. 2021	not validly published	preferred name (not correct name)
    Clostridium fallax (Weinberg and Séguin 1915) Bergey et al. 1923 (Approved Lists 1980)	validly published under the ICNP	correct name
    Clostridium felsineum (Carbone and Tombolato 1917) Bergey et al. 1939 (Approved Lists 1980)	validly published under the ICNP	correct name
    Clostridium fermenticellae Xu et al. 2019	validly published under the ICNP	correct name
    Clostridium fervidum corrig. Patel et al. 1987	validly published under the ICNP	synonym
    Clostridium fervidus Patel et al. 1987	inaccurate spelling	misspelling
    Clostridium fessum Seo et al. 2021	validly published under the ICNP	correct name
    Clostridium fimetarium Kotsyurbenko et al. 1997	validly published under the ICNP	correct name
    Clostridium folliculivorans Tazawa et al. 2023	validly published under the ICNP	correct name
    Clostridium formicaceticum corrig. Andreesen et al. 1970 (Approved Lists 1980)	validly published under the ICNP	correct name
    Clostridium formicoaceticum Andreesen et al. 1970 (Approved Lists 1980)	inaccurate spelling	misspelling
    Clostridium frigidicarnis Broda et al. 1999	validly published under the ICNP	correct name
    "Clostridium frigoriphilum" Dorn-In et al. 2018	not validly published	preferred name (not correct name)
    Clostridium frigoris Spring et al. 2003	validly published under the ICNP	correct name
    Clostridium fungisolvens Ueki et al. 2021	validly published under the ICNP	correct name
    "Clostridium fusiformis" Lomans et al. 2001	not validly published	preferred name (not correct name)
    "Clostridium gallinarum" Gilroy et al. 2021	not validly published	synonym (and no standing)
    Clostridium gallinarum Pallen 2024	validly published under the ICNP	correct name
    Clostridium ganghwense Kim et al. 2006	validly published under the ICNP	correct name
    Clostridium gasigenes Broda et al. 2000	validly published under the ICNP	correct name
    Clostridium gelidum Honma et al. 2022	validly published under the ICNP	correct name
    "Clostridium geopurificans" Kwon et al. 2014	not validly published	preferred name (not correct name)
    Clostridium ghoni Prévot 1938 (Approved Lists 1980)	inaccurate spelling	misspelling
    Clostridium ghonii corrig. Prévot 1938 (Approved Lists 1980)	validly published under the ICNP	synonym
    Clostridium glycolicum Gaston and Stadtman 1963 (Approved Lists 1980)	validly published under the ICNP	synonym
    Clostridium glycyrrhizinilyticum Sakuma et al. 2006	validly published under the ICNP	synonym
    Clostridium grantii Mountfort et al. 1996	validly published under the ICNP	correct name
    Clostridium guangxiense Zhao et al. 2017	validly published under the ICNP	correct name
    Clostridium haemolyticum corrig. (Hall 1929) Scott et al. 1935 (Approved Lists 1980)	validly published under the ICNP	correct name
    Clostridium halophilium Fendrich et al. 1991	inaccurate spelling	misspelling
    Clostridium halophilum corrig. Fendrich et al. 1991	validly published under the ICNP	synonym
    Clostridium hastiforme MacLennan 1939 (Approved Lists 1980)	validly published under the ICNP	synonym
    Clostridium hathewayi Steer et al. 2002	validly published under the ICNP	synonym
    Clostridium hemolyticum (Hall 1929) Scott et al. 1935 (Approved Lists 1980)	inaccurate spelling	misspelling
    Clostridium herbivorans Varel et al. 1995	validly published under the ICNP	correct name
    Clostridium hiranonis Kitahara et al. 2001	validly published under the ICNP	synonym
    Clostridium histolyticum (Weinberg and Séguin 1916) Bergey et al. 1923 (Approved Lists 1980)	validly published under the ICNP	synonym
    "Clostridium hobsonii" Sharma and Hagen 1995	not validly published	preferred name (not correct name)
    Clostridium hominis Liu et al. 2022	validly published under the ICNP	correct name
    Clostridium homopropionicum Dörner and Schink 1991	validly published under the ICNP	correct name
    Clostridium huakuii Ruan et al. 2014	validly published under the ICNP	correct name
    Clostridium hungatei Monserrate et al. 2001	validly published under the ICNP	synonym
    Clostridium hydrogeniformans Bowman et al. 2010	validly published under the ICNP	correct name
    Clostridium hydroxybenzoicum Zhang et al. 1994	validly published under the ICNP	synonym
    Clostridium hylemonae Kitahara et al. 2000	validly published under the ICNP	correct name
    "Candidatus Clostridium ihumii" Pfleiderer et al. 2013	not validly published	synonym
    "Clostridium ihumii" Merhej et al. 2015	not validly published	preferred name (not correct name)
    Clostridium indicum Gundawar et al. 2019	validly published under the ICNP	synonym
    Clostridium indolis McClung and McCoy 1957 (Approved Lists 1980)	validly published under the ICNP	synonym
    Clostridium innocuum Smith and King 1962 (Approved Lists 1980)	validly published under the ICNP	correct name
    Clostridium intestinale corrig. Lee et al. 1989	validly published under the ICNP	correct name
    Clostridium intestinalis Lee et al. 1989	inaccurate spelling	misspelling
    Clostridium irregulare corrig. (Choukévitch 1911) Prévot 1938 (Approved Lists 1980)	validly published under the ICNP	synonym
    Clostridium irregularis (Choukévitch 1911) Prévot 1938 (Approved Lists 1980)	inaccurate spelling	misspelling
    Clostridium isatidis Padden et al. 1999	validly published under the ICNP	correct name
    Clostridium jeddahense Lagier et al. 2016	validly published under the ICNP	synonym
    "Clostridium jeddahitimonense" Kieu et al. 2021	not validly published	preferred name (not correct name)
    Clostridium jejuense Jeong et al. 2004	validly published under the ICNP	synonym
    Clostridium josui Sukhumavasi et al. 1988	validly published under the ICNP	synonym
    Clostridium kluyveri Barker and Taha 1942 (Approved Lists 1980)	validly published under the ICNP	correct name
    Clostridium kogasense corrig. Shin et al. 2021	validly published under the ICNP	correct name
    Clostridium kogasensis Shin et al. 2021	inaccurate spelling	misspelling
    Clostridium lactatifermentans van der Wielen et al. 2002	validly published under the ICNP	synonym
    Clostridium lacusfryxellense Spring et al. 2003	validly published under the ICNP	correct name
    Clostridium lamae Li et al. 2024	validly published under the ICNP	correct name
    Clostridium lapidicellarium Yang et al. 2024	validly published under the ICNP	correct name
    Clostridium laramie Kalchayanand et al. 1993	inaccurate spelling	misspelling
    Clostridium laramiense corrig. Kalchayanand et al. 1993	validly published under the ICNP	synonym
    Clostridium lavalense Domingo et al. 2009	validly published under the ICNP	synonym
    Clostridium lentocellum Murray et al. 1987	validly published under the ICNP	synonym
    Clostridium lentoputrescens Hartsell and Rettger 1934 (Approved Lists 1980)	validly published under the ICNP	synonym
    Clostridium lentum Liu et al. 2022	validly published under the ICNP	correct name
    Clostridium leptum Moore et al. 1976 (Approved Lists 1980)	validly published under the ICNP	correct name
    "Clostridium licheniforme" Weigmann 1898	not validly published, basonym of name in Approved Lists	synonym (and no standing)
    Clostridium limosum André 1948 (Approved Lists 1980)	validly published under the ICNP	synonym
    Clostridium liquoris Yin et al. 2016	validly published under the ICNP	correct name
    Clostridium litorale Fendrich et al. 1991	validly published under the ICNP	synonym
    Clostridium lituseburense (Laplanche and Saissac 1948) McClung and McCoy 1957 (Approved Lists 1980)	validly published under the ICNP	synonym
    Clostridium ljungdahlii Tanner et al. 1993	validly published under the ICNP	correct name
    "Clostridium longisporum" Hungate 1957	not validly published	preferred name (not correct name)
    Clostridium lortetii Oren 1984	validly published under the ICNP	synonym
    Clostridium lundense Cirne et al. 2006	validly published under the ICNP	correct name
    Clostridium luticellarii Wang et al. 2015	validly published under the ICNP	correct name
    Clostridium magnum Schink 1984	validly published under the ICNP	correct name
    Clostridium malenominatum (Weinberg et al. 1937) Spray 1948 (Approved Lists 1980)	validly published under the ICNP	correct name
    Clostridium mangenotii (Prévot and Zimmès-Chaverou 1947) McClung and McCoy 1957 (Approved Lists 1980)	validly published under the ICNP	synonym
    Clostridium manihotivorum Cheawchanlertfa et al. 2021	validly published under the ICNP	correct name
    "Clostridium massiliamazoniense" Dione et al. 2020	not validly published	preferred name (not correct name)
    "Candidatus Clostridium massiliense" corrig. Fenollar et al. 2006	not validly published	pro-correct name
    "Candidatus Clostridium massiliensis" Fenollar et al. 2006	inaccurate spelling	misspelling
    "Clostridium massiliodielmoense" Tidjani Alou et al. 2016	not validly published	preferred name (not correct name)
    Clostridium maximum (Lindner 1888) Lawson and Rainey 2016	validly published under the ICNP, illegitimate name	synonym
    Clostridium mayombei Kane et al. 1992	validly published under the ICNP	synonym
    "Clostridium mediterraneense" Ndongo et al. 2017	not validly published	preferred name (not correct name)
    "Clostridium merdae" Ndongo et al. 2017	not validly published	preferred name (not correct name)
    Clostridium methoxybenzovorans Mechichi et al. 1999	validly published under the ICNP	synonym
    Clostridium methylpentosum Himelbloom and Canale-Parola 1989	validly published under the ICNP	correct name
    "Clostridium minihomine" Bilen et al. 2018	not validly published	preferred name (not correct name)
    Clostridium mobile Li et al. 2022	validly published under the ICNP	correct name
    Clostridium moniliforme (Repaci 1910) Lawson and Rainey 2016	validly published under the ICNP	correct name
    Clostridium moutaii Yang et al. 2024	validly published under the ICNP	correct name
    Clostridium mucosae Afrizal et al. 2025	validly published under the ICNP	correct name
    Clostridium muellerianum Doyle et al. 2022	validly published under the ICNP	correct name
    Clostridium neonatale Bernard et al. 2018	validly published under the ICNP	correct name
    Clostridium neopropionicum Tholozan et al. 1995	validly published under the ICNP	synonym
    Clostridium neuense Zhao et al. 2017	validly published under the ICNP	correct name
    Clostridium nexile Holdeman and Moore 1974 (Approved Lists 1980)	validly published under the ICNP	correct name
    "Clostridium niameyense" Chabou et al. 2018	not validly published	preferred name (not correct name)
    "Clostridium nigeriense" Alou et al. 2018	not validly published	preferred name (not correct name)
    "Clostridium nigrificans" Werkman and Weaver 1927	not validly published, basonym of name in Approved Lists	synonym (and no standing)
    Clostridium nitritogenes (Prévot 1940) Bernard et al. 2018	validly published under the ICNP	correct name
    Clostridium nitrophenolicum Suresh et al. 2007	validly published under the ICNP	correct name
    Clostridium novyi (Migula 1900) Bergey et al. 1923 (Approved Lists 1980)	validly published under the ICNP	correct name
    Clostridium oceanicum Smith 1970 (Approved Lists 1980)	validly published under the ICNP	correct name
    Clostridium omnivorum Ueki et al. 2024	validly published under the ICNP	correct name
    Clostridium orbiscindens Winter et al. 1991	validly published under the ICNP	synonym
    Clostridium oroticum (Wachsman and Barker 1954) Cato et al. 1968 (Approved Lists 1980)	validly published under the ICNP	synonym
    Clostridium oryzae Horino et al. 2015	validly published under the ICNP	correct name
    Clostridium oxalicum Dehning and Schink 1990	validly published under the ICNP	synonym
    Clostridium pabulibutyricum Kobayashi et al. 2017	validly published under the ICNP	correct name
    "Clostridium pacaense" Hosny et al. 2019	not validly published	preferred name (not correct name)
    Clostridium papyrosolvens Madden et al. 1982	validly published under the ICNP	synonym
    Clostridium paradoxum Li et al. 1993	validly published under the ICNP	synonym
    Clostridium paraperfringens Nakamura et al. 1970 (Approved Lists 1980)	validly published under the ICNP	synonym
    Clostridium paraputrificum (Bienstock 1906) Snyder 1936 (Approved Lists 1980)	validly published under the ICNP	correct name
    "Clostridium paridis" Li et al. 2023	not validly published	preferred name (not correct name)
    Clostridium pascui Wilde et al. 1997	validly published under the ICNP	correct name
    Clostridium pasteurianum Winogradsky 1895 (Approved Lists 1980)	validly published under the ICNP	correct name
    Clostridium peptidivorans Mechichi et al. 2000	validly published under the ICNP	correct name
    Clostridium perenne (Prévot 1940) McClung and McCoy 1957 (Approved Lists 1980)	validly published under the ICNP	synonym
    Clostridium perfringens (Veillon and Zuber 1898) Hauduroy et al. 1937 (Approved Lists 1980)	validly published under the ICNP	correct name
    Clostridium pfennigii Krumholz and Bryant 1985	validly published under the ICNP	synonym
    "Clostridium phoceensis" Hosny et al. 2016	not validly published	preferred name (not correct name)
    Clostridium phytofermentans Warnick et al. 2002	validly published under the ICNP	correct name
    Clostridium piliforme (ex Tyzzer 1917) Duncan et al. 1993	validly published under the ICNP	correct name
    "Clostridium plagarum" Smith and Hobbs 1974	not validly published	preferred name (not correct name)
    Clostridium polyendosporum (Duda et al. 1996) Rainey et al. 2016	validly published under the ICNP	correct name
    "Clostridium polymyxa" Prazmowski 1880	not validly published, basonym of name in Approved Lists	synonym (and no standing)
    Clostridium polynesiense Sankar et al. 2023	validly published under the ICNP	correct name
    Clostridium polysaccharolyticum (van Gylswyk 1981) van Gylswyk et al. 1983	validly published under the ICNP	correct name
    Clostridium populeti Sleat and Mah 1985	validly published under the ICNP	synonym
    Clostridium porci Wylensek et al. 2021	validly published under the ICNP	correct name
    Clostridium prolinivorans Huang et al. 2020	validly published under the ICNP	correct name
    Clostridium propionicum Cardon and Barker 1946 (Approved Lists 1980)	validly published under the ICNP	synonym
    Clostridium proteoclasticum Attwood et al. 1996	validly published under the ICNP	synonym
    Clostridium proteolyticum Jain and Zeikus 1988	validly published under the ICNP	synonym
    Clostridium psychrophilum Spring et al. 2003	validly published under the ICNP	correct name
    Clostridium punense Lanjekar et al. 2015	validly published under the ICNP	correct name
    Clostridium puniceum Lund et al. 1981	validly published under the ICNP	correct name
    Clostridium purinilyticum corrig. Dürre et al. 1981	validly published under the ICNP	synonym
    Clostridium purinolyticum Dürre et al. 1981	inaccurate spelling	misspelling
    Clostridium putrefaciens (McBryde 1911) Sturges and Drake 1927 (Approved Lists 1980)	validly published under the ICNP	correct name
    Clostridium putrificum (Trevisan 1889) Reddish and Rettger 1922 (Approved Lists 1980)	validly published under the ICNP, rejected name	in need of a replacement
    Clostridium quercicolum Stankewich et al. 1971 (Approved Lists 1980)	validly published under the ICNP	synonym
    Clostridium quinii Svensson et al. 1995	validly published under the ICNP	correct name
    "Clostridium ragsdalei" Saxena and Tanner 2011	not validly published	preferred name (not correct name)
    Clostridium ramosum (Veillon and Zuber 1898) Holdeman et al. 1971 (Approved Lists 1980)	validly published under the ICNP	synonym
    "Clostridium rectalis" Tall et al. 2020	not validly published	preferred name (not correct name)
    Clostridium rectum (Heller 1922) Holdeman and Moore 1972 (Approved Lists 1980)	validly published under the ICNP	synonym
    "Clostridium rhizosphaerae" Li et al. 2023	not validly published	preferred name (not correct name)
    Clostridium roseum (ex McCoy and McClung 1935) Cato et al. 1988	validly published under the ICNP	synonym
    "Clostridium rubrum" Ng and Vaughn 1963	not validly published	preferred name (not correct name)
    "Clostridium ruminantium" Galperin et al. 2016	not validly published	preferred name (not correct name)
    Clostridium saccharobutylicum Keis et al. 2001	validly published under the ICNP	correct name
    Clostridium saccharogumia Clavel et al. 2007	validly published under the ICNP	synonym
    Clostridium saccharolyticum Murray et al. 1982	validly published under the ICNP	synonym
    Clostridium saccharoperbutylacetonicum Keis et al. 2001	validly published under the ICNP	correct name
    Clostridium sardiniense corrig. Prévot 1938 (Approved Lists 1980)	validly published under the ICNP	correct name
    Clostridium sardiniensis Prévot 1938 (Approved Lists 1980)	inaccurate spelling	misspelling
    Clostridium sartagoforme corrig. Partansky and Henry 1935 (Approved Lists 1980)	validly published under the ICNP	correct name
    Clostridium sartagoformum Partansky and Henry 1935 (Approved Lists 1980)	inaccurate spelling	misspelling
    Clostridium saudiense corrig. Angelakis et al. 2016	validly published under the ICNP	correct name
    Clostridium saudii Angelakis et al. 2016	inaccurate spelling	misspelling
    Clostridium scatologenes (Weinberg and Ginsbourg 1927) Prévot 1948 (Approved Lists 1980)	validly published under the ICNP	correct name
    Clostridium schirmacherense Alam et al. 2006	validly published under the ICNP	correct name
    Clostridium scindens Morris et al. 1985	validly published under the ICNP	correct name
    Clostridium sediminicola Hirano et al. 2025	validly published under the ICNP	correct name
    Clostridium senegalense Mishra et al. 2015	validly published under the ICNP	correct name
    Clostridium septicum (Macé 1889) Ford 1927 (Approved Lists 1980)	validly published under the ICNP	correct name
    Clostridium simiarum Li et al. 2022	validly published under the ICNP	correct name
    Clostridium sordellii (Hall and Scott 1927) Prévot 1938 (Approved Lists 1980)	validly published under the ICNP	synonym
    Clostridium sphenoides (Douglas et al. 1919) Bergey et al. 1923 (Approved Lists 1980)	validly published under the ICNP	synonym
    Clostridium spiroforme Kaneuchi et al. 1979 (Approved Lists 1980)	validly published under the ICNP	synonym
    Clostridium sporogenes (Metchnikoff 1908) Bergey et al. 1923 (Approved Lists 1980)	validly published under the ICNP, conserved name	correct name
    Clostridium sporosphaeroides Soriano and Soriano 1948 (Approved Lists 1980)	validly published under the ICNP	synonym
    Clostridium stercorarium Madden 1983	validly published under the ICNP	synonym
    Clostridium sticklandii Stadtman and McClung 1957 (Approved Lists 1980)	validly published under the ICNP	synonym
    Clostridium straminisolvens Kato et al. 2004	validly published under the ICNP	synonym
    Clostridium subterminale (Hall and Whitehead 1927) Spray 1948 (Approved Lists 1980)	validly published under the ICNP	correct name
    Clostridium sufflavum Nishiyama et al. 2009	validly published under the ICNP	synonym
    Clostridium sulfidigenes Sallam and Steinbüchel 2009	validly published under the ICNP	correct name
    Clostridium swellfunianum Liu et al. 2015	validly published under the ICNP	correct name
    Clostridium symbiosum (Stevens 1956) Kaneuchi et al. 1976 (Approved Lists 1980)	validly published under the ICNP	correct name
    "Clostridium taeniosporum" Krasil'nikov et al. 1968	not validly published	preferred name (not correct name)
    Clostridium tagluense Suetin et al. 2009	validly published under the ICNP	correct name
    Clostridium tanneri Miller et al. 2024	validly published under the ICNP	correct name
    Clostridium tarantellae (Udey et al. 1977) Lawson and Rainey 2016	validly published under the ICNP	correct name
    Clostridium tepidiprofundi Slobodkina et al. 2008	validly published under the ICNP	correct name
    Clostridium tepidum Dobritsa et al. 2017	validly published under the ICNP	correct name
    Clostridium termitidis Hethener et al. 1992	validly published under the ICNP	synonym
    Clostridium tertium (Henry 1917) Bergey et al. 1923 (Approved Lists 1980)	validly published under the ICNP	correct name
    Clostridium tetani (Flügge 1886) Bergey et al. 1923 (Approved Lists 1980)	validly published under the ICNP	correct name
    Clostridium tetanomorphum (ex Bulloch et al. 1919) Wilde et al. 1989	validly published under the ICNP	correct name
    Clostridium thailandense Chaikitkaew et al. 2022	validly published under the ICNP	correct name
    Clostridium thermaceticum corrig. Fontaine et al. 1942 (Approved Lists 1980)	validly published under the ICNP, illegitimate correction	misspelling
    Clostridium thermarum Liu et al. 2021	validly published under the ICNP	correct name
    Clostridium thermautotrophicum corrig. Wiegel et al. 1982	validly published under the ICNP, rejected name	synonym
    Clostridium thermoaceticum Fontaine et al. 1942 (Approved Lists 1980)	inaccurate spelling	misspelling
    Clostridium thermoalcaliphilum Li et al. 1994	validly published under the ICNP	synonym
    Clostridium thermoautotrophicum Wiegel et al. 1982	inaccurate spelling and rejected	misspelling
    Clostridium thermobutyricum Wiegel et al. 1989	validly published under the ICNP	correct name
    Clostridium thermocellum Viljoen et al. 1926 (Approved Lists 1980)	validly published under the ICNP	synonym
    Clostridium thermocopriae Jin et al. 1988	validly published under the ICNP	synonym
    Clostridium thermohydrosulfuricum Klaushofer and Parkkinen 1965 (Approved Lists 1980)	validly published under the ICNP	synonym
    Clostridium thermolacticum Le Ruyet et al. 1988	validly published under the ICNP	synonym
    Clostridium thermopalmarium Soh et al. 1991	validly published under the ICNP	correct name
    Clostridium thermopapyrolyticum Méndez et al. 1991	validly published under the ICNP	correct name
    Clostridium thermosaccharolyticum McClung 1935 (Approved Lists 1980)	validly published under the ICNP	synonym
    Clostridium thermosuccinogenes Drent et al. 1995	validly published under the ICNP	correct name
    Clostridium thermosulfurigenes corrig. Schink and Zeikus 1983	validly published under the ICNP	synonym
    Clostridium thermosulfurogenes Schink and Zeikus 1983	inaccurate spelling	misspelling
    Clostridium thiosulfatireducens Hernández-Eugenio et al. 2002	validly published under the ICNP	correct name
    "Candidatus Clostridium timonense" corrig. Fenollar et al. 2006	not validly published	pro-correct name
    "Candidatus Clostridium timonensis" Fenollar et al. 2006	inaccurate spelling	misspelling
    "Clostridium transplantifaecale" Yimagou et al. 2019	not validly published	preferred name (not correct name)
    "Clostridium tunisiense" Thabet et al. 2004	not validly published	preferred name (not correct name)
    Clostridium tyrobutyricum van Beynum and Pette 1935 (Approved Lists 1980)	validly published under the ICNP	correct name
    Clostridium uliginosum Matthies et al. 2001	validly published under the ICNP	correct name
    Clostridium ultunense Schnürer et al. 1996	validly published under the ICNP	synonym
    "Clostridium uracilicum" Campbell 1957	not validly published	preferred name (not correct name)
    "Clostridium uzonii" Krivenko et al. 1990	not validly published	preferred name (not correct name)
    Clostridium ventriculi (Goodsir 1842) Lawson and Rainey 2016	validly published under the ICNP, illegitimate name	synonym
    Clostridium villosum Love et al. 1979 (Approved Lists 1980)	validly published under the ICNP	synonym
    Clostridium vincentii Mountfort et al. 1997	validly published under the ICNP	correct name
    Clostridium viride Buckel et al. 1995	validly published under the ICNP	correct name
    Clostridium vitabionis Shin et al. 2021	validly published under the ICNP	correct name
    Clostridium vulturis Paek et al. 2015	validly published under the ICNP	correct name
    Clostridium weizhouense Li et al. 2022	validly published under the ICNP	correct name
    Clostridium xylanolyticum Rogers and Baecker 1991	validly published under the ICNP	synonym
    Clostridium xylanovorans Mechichi et al. 2000	validly published under the ICNP	synonym
    "Clostridium yunnanense" Li et al. 2023	not validly published	preferred name (not correct name)
    Clostridium zeae Kobayashi et al. 2021	validly published under the ICNP	correct name

Parent taxon: Clostridiaceae Pribram 1933 (Approved Lists 1980)

Assigned by: [pribram E. Klassification der Schizomyceten. F. Deuticke, Leipzig, 1933.

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Record number: 517000