Judicial Opinions

See the glossary entry on ☞ Judicial Opinions for background information. An overview on nomenclature is given on a separate page. The following list of Judicial Opinions issued by the ☞ Judicial Commission is sorted in order of appearance, decreasingly. For pending, withdrawn and superseded ☞ Requests for an Opinion as well as for comments on Requests for an Opinion see elsewhere.

Note that previously published Judicial Opinions may be superseded by more recent Judicial Opinions as well as by the publication of the Approved Lists. Names that were not included in the Approved Lists, which set a new starting point for prokaryotic nomenclature in 1980, are not to be considered ☞ validly published even if older Judicial Opinions indicate otherwise.

Int J Syst Evol Microbiol 2024; 74:6414. Rhodococcus Zopf 1891 (Approved Lists 1980) is conserved over Rhodococcus Hansgirg 1884. Affected taxon names: Rhodococcus. Request for an opinion: Int J Syst Evol Microbiol 2024; 74:6251. "Is the bacterial genus name Rhodococcus Zopf 1891 illegitimate? Request for an Opinion."

Int J Syst Evol Microbiol 2024; 74:6064. "Firmicutes corrig. Gibbons and Murray 1978 is ... rejected ... Gracilicutes Gibbons and Murray 1978 (Approved Lists 1980) and Anoxyphotobacteriae Gibbons and Murray 1978 (Approved Lists 1980) are also rejected" (cited from the abstract). Affected taxon names: Firmacutes, Firmicutes corrig., Gracilicutes, "Acidobacteria", "Actinobacteria", "Actinobacteria", "Aquificae", "Armatimonadetes", Atribacterota, "Atribacterota", "Candidatus Atribacterota" corrig., "Bacteroidetes", "Balneolaeota", Bdellovibrionota, "Bdellovibrionota", "Caldiserica", "Calditrichaeota", Campylobacterota, "Campylobacterota", "Chlamydiae", "Chlorobi", "Chlorobi", "Chloroflexi", "Chrysiogenetes", Coprothermobacterota, "Coprothermobacterota", "Crenarchaeota", "Deferribacteres", "Dictyoglomi", "Elusimicrobia", "Fibrobacteres", "Firmicutes", "Fusobacteria", "Gemmatimonadetes", "Ignavibacteriae", "Kiritimatiellaeota", "Lentisphaerae", Myxococcota, "Myxococcota", "Nitrospirae", "Planctomycetes", "Proteobacteria", "Proteobacteria", "Rhodothermaeota", "Spirochaetes", "Synergistetes", "Tenericutes", "Thermodesulfobacteria", "Thermomicrobia", "Thermotogae", "Verrucomicrobia", "Verrucomicrobia", Anoxyphotobacteriae. Request for an opinion: Int J Syst Evol Microbiol 2023; 73:5933. "Request for an Opinion on the standing and retention of Firmicutes as a phylum name."

Int J Syst Evol Microbiol 2023; 73:5797. "Judicial Opinion 128 addresses nomenclatural issues related to the names of classes validly published under the International Code of Nomenclature of Prokaryotes" (cited from the abstract). Affected taxon names: Actinomycetes, Actinomycetia, Alphaproteobacteria, Anaerolineae, Anoxyphotobacteria, Aquificia corrig., "Aquificia", Arabobacteria, Archaeobacteria, Archaeoglobea, Archaeoglobi, Arthrobacteria, Bacilli, Bacteria, Betaproteobacteria, Caldilineae, Caldisericia, Chlorobea, Chroobacteria, Chrysiogenia corrig., Chthonomonadia corrig., Clostridia, Deferribacteres, Deinococci, Deltabacteria, Deltaproteobacteria, Elusimicrobia, Epsilobacteria, Epsilonproteobacteria, Erysipelotrichia, Ferrobacteria, Firmibacteria, Flavobacteria, Gammaproteobacteria, Gemmatimonadia corrig., "Gemmatimonadia", Halobacteria, Halomebacteria, Holophagae, Ignavibacteria, Kiritimatiellae, Ktedonobacteria corrig., Methanobacteria, Methanococci, Methanopyri, Methanothermea, Microtatobiotes, Mollicutes, Negativicutes, Opitutia corrig., "Opitutia", Oxyphotobacteria, Photobacteria, Phycisphaerae, Picrophilea, Planctomycea, Proteobacteria, Protoarchaea, Schizomycetes, Scotobacteria, Synergistia, "Thallobacteria", Thermococci, Thermodesulfobacteria, Thermolithobacteria, Thermomicrobia, Thermoplasmata, Thermoprotei, Thermotogae, Verrucomicrobiia corrig., "Verrucomicrobiia", "Archaea", Alcaligenaceae, Aquificaceae, Chrysiogenaceae, Aquifex, Chrysiogenes, Deferribacter, Gemmatimonas, "Halobacter", Methanothermus, Opitutus, Proteus, Synergistes, Thermoplasma, Verrucomicrobium, Actinomycetales, Aquificales, Bacillales, Chrysiogenales, "Cyanobacteriales", Methanobacteriales, Methanococcales, Mycoplasmatales, Rhodospirillales, Rickettsiales, "Caldiserica", Chrysiogenota, Pseudomonadota, Anoxyphotobacteriae, "Oxyphotobacteriae". Request for an opinion: Int J Syst Evol Microbiol 2022; 72:5605. "Solving the remaining problems with names of classes. Request for an Opinion."

Int J Syst Evol Microbiol 2022; 72:5708. "Opinion 127 grants the request to assign the strain deposited as ATCC 4720 as the type strain of Agrobacterium tumefaciens, thereby correcting the Approved Lists" (cited from the abstract). Affected taxon names: Agrobacterium tumefaciens. Request for an opinion: Int J Syst Evol Microbiol 2020; 70:5172-5176. "Strain ATCC 4720^T is the authentic type strain of Agrobacterium tumefaciens, which is not a later heterotypic synonym of Agrobacterium radiobacter. Request for an opinion."

Int J Syst Evol Microbiol 2022; 72:5708. "Opinion 126 denies the request to place Prolinoborus and Prolinoborus fasciculus on the list of rejected names because a relevant type strain deposit was not examined." (cited from the abstract). Affected taxon names: Prolinoborus fasciculus. Request for an opinion: Int J Syst Evol Microbiol 2020; 70:5165-5171. "The status of the genus Prolinoborus (Pot et al. 1992) and the species Prolinoborus fasciculus (Pot et al. 1992)."

Int J Syst Evol Microbiol 2022; 72:5708. "Opinion 125 denies the request to place Lactobacillus fornicalis on the list of rejected names because the provided information does not yield a reason for rejection" (cited from the abstract). Affected taxon names: Lactobacillus fornicalis. Request for an opinion: Int J Syst Evol Microbiol 2020; 70:3953-3954. "The status of the species Lactobacillus fornicalis Dicks et al. 2000. Request for an opinion."

Int J Syst Evol Microbiol 2022; 72:5708. "Opinion 124 denies the request to place Borreliella on the list of rejected names because the request is based on a misinterpretation of the Code, which is clarified. There are alternative ways to solve the perceived problem" (cited from the abstract). Affected taxon names: Borreliella. Request for an opinion: Int J Syst Evol Microbiol 2020; 70:3577-3581. "Rejection of the name Borreliella and all proposed species comb. nov. placed therein. Request for an opinion."

Int J Syst Evol Microbiol 2022; 72:5708. "Opinion 123 places the epithet of the name Aeromonas punctata on the list of rejected epithets and clarifies the citation of authors of selected names within the genus Aeromonas" (cited from the abstract). Affected taxon names: Aeromonas eucrenophila, Aeromonas punctata, Aeromonas punctata subsp. caviae. Requests for an opinion: Int J Syst Evol Microbiol 2020; 70:2155-2157. "Correction of the type strain of Aeromonas punctata (Zimmermann 1890) Snieszko 1957 and of A. punctata subsp. punctata from ATCC 15468^T to NCMB 74^T (=NCIMB 74^T= ATCC 23309^T). Request for an opinion." — Int J Syst Evol Microbiol 2020; 70:2158-2162. "Conservation of the name Aeromonas eucrenophila over the name Aeromonas punctata for the organism based on type stain NCMB 74^T and universally defined as ‘Aeromonas DNA hybridization group 6’. Request for an opinion."

Int J Syst Evol Microbiol 2022; 72:5481. "In Opinion 122, the request to reject various taxon names of Mollicutes proposed in 2018 is denied because it is based on misinterpretations of the Code, which are clarified. Alternative ways to solve the perceived problems are outlined" (cited from the abstract). Affected taxon names: Mollicutes, Metamycoplasmataceae, Mycoplasmoidaceae, Malacoplasma, Mesomycoplasma, Metamycoplasma, Mycoplasmoides, Mycoplasmopsis, Mycoplasmoidales. Requests for an opinion: Int J Syst Evol Microbiol 2019; 69:3650-3653. "Recommended rejection of the names Malacoplasma gen. nov., Mesomycoplasma gen. nov., Metamycoplasma gen. nov., Metamycoplasmataceae fam. nov., Mycoplasmoidaceae fam. nov., Mycoplasmoidales ord. nov., Mycoplasmoides gen. nov., Mycoplasmopsis gen. nov. [Gupta, Sawnani, Adeolu, Alnajar and Oren 2018] and all proposed species comb. nov. placed therein. Request for an opinion." — Int J Syst Evol Microbiol 2020; 70:1431-1438. "Necessity and rationale for the proposed name changes in the classification of Mollicutes species. Reply to: 'Recommended rejection of the names Malacoplasma gen. nov., Mesomycoplasma gen. nov., Metamycoplasma gen. nov., Metamycoplasmataceae fam. nov., Mycoplasmoidaceae fam. nov., Mycoplasmoidales ord. nov., Mycoplasmoides gen. nov., Mycoplasmopsis gen. nov. [Gupta, Sawnani, Adeolu, Alnajar and Oren 2018] and all proposed species comb. nov. placed therein', by M. Balish et al. (Int J Syst Evol Microbiol, 2019;69:3650-3653)."

Int J Syst Evol Microbiol 2022; 72:5481. "Opinion 121 denies the request to revise Opinion 69 and notes that Opinion 69 does not have the undesirable consequences emphasized in the request" (cited from the abstract). Affected taxon names: Eubacterium combesii. Request for an opinion: Int J Syst Evol Microbiol 2018; 68:3068-3075. "Reclassification of Eubacterium combesii and discrepancies in the nomenclature of botulinum neurotoxin-producing clostridia: Challenging Opinion 69. Request for an Opinion."

Int J Syst Evol Microbiol 2022; 72:5481. "In Opinion 120, the possible orthographical correction of the name Amycolatopsis albidoflavus is treated. It is grammatically corrected to Amycolatopsis albidoflava. Six names which could according to Rule 61 be grammatically corrected by anyone are also corrected" (cited from the abstract). Affected taxon names: Amycolatopsis albidoflava corrig., Amycolatopsis albidoflavus, Hyphomonas neptunia corrig., Pectobacterium carnegieanum corrig., Salinifilum aidingense corrig., Salinifilum ghardaiense corrig., Streptomyces ladakanus corrig., Streptomyces morookaensis corrig.. Request for an opinion: Int J Syst Evol Microbiol 2017; 67:4284. "Correction of the name Amycolatopsis albidoflavus to Amycolatopsis albidiflava corrig. Request for an Opinion."

Int J Syst Evol Microbiol 2022; 72:5481. "Opinion 119 concludes that assigning Actinomycetales Buchanan 1917 (Approved Lists 1980) as nomenclatural type of the class Actinobacteria Stackebrandt et al. 1997 would not render that name legitimate if Rule 8 remained retroactive. The request is granted but Actinomycetales is also assigned as type of Actinomycetes Krassilnikov 1949 (Approved Lists 1980)" (cited from the abstract). Affected taxon names: Actinobacteria, Actinomycetia, Actinomycetales. Request for an opinion: Int J Syst Evol Microbiol 2017; 67:3687-3688. "Proposal to designate the order Actinomycetales Buchanan 1917, 162 (Approved Lists 1980) as the nomenclatural type of the class Actinobacteria. Request for an Opinion."

Int J Syst Evol Microbiol 2022; 72:5481. "In Opinion 118, the possible orthographical correction of the name Flaviaesturariibacter is treated, as are the analogous cases of Fredinandcohnia and Hydrogeniiclostidium. The genus names are corrected to Flaviaestuariibacter, Ferdinandcohnia and Hydrogeniiclostridium, respectively" (cited from the abstract). Affected taxon names: Ferdinandcohnia corrig., Flaviaestuariibacter corrig., Flaviaesturariibacter, Hydrogeniiclostridium corrig., Ferdinandcohnia aciditolerans corrig., Ferdinandcohnia humi corrig., Ferdinandcohnia onubensis corrig., Ferdinandcohnia salidurans corrig., Flaviaestuariibacter amylovorans corrig., Flaviaestuariibacter luteus corrig., Flaviaestuariibacter terrae corrig., Hydrogeniiclostridium mannosilyticum corrig.. Request for an opinion: Int J Syst Evol Microbiol 2017; 67:3686. "Proposal to correct the generic name Flaviaesturariibacter Kang, Chun, Seo, Kim and Jahng 2015, 2212 to Flavaestuariibacter. Request for an Opinion."

Int J Syst Evol Microbiol 2022; 72:5481. "In Opinion 117, the request to designate Methylothermus subterraneus Hirayama et al. 2011 as the type species of the genus Methylothermus is denied because an equivalent action compatible with the Code was already conducted" (cited from the abstract). Affected taxon names: Methylothermus subterraneus, "Methylothermus subterraneus". Request for an opinion: Int J Syst Evol Microbiol 2017; 67:3685. "Proposal to designate Methylothermus subterraneus Hirayama et al. 2011 as the type species of the genus Methylothermus. Request for an Opinion."

Int J Syst Evol Microbiol 2022; 72:5481. "To assess the consequences of Rule 8, Opinion 116 revisits names of taxa above the rank of genus which should comprise the stem of the name of a nomenclatural type and a category-­specific ending but fail to do so. Such names should be orthographically corrected if the sole error is the inadvertent usage of an incorrect stem or be regarded as illegitimate if otherwise. The necessary corrections are made for a number of names" (cited from the abstract). Affected taxon names: Abditibacteriia corrig., "Acidobacteriia", Actinomycetes, Alphaproteobacteria, Anaerolineae, Betaproteobacteria, Caldilineae, "Campylobacteria", "Caulobacteria", Chlamydiia, Chlorobiia, "Chlorobiia" corrig., "Chlorobiia" corrig., "Chlorobiia" corrig., "Chlorobiia", Chthonomonadetes, Clostridia, "Clostridiia", "Deferribacteria", Deltaproteobacteria, "Elusimicrobiia", Endomicrobiia corrig., Epsilonproteobacteria, Flavobacteriia, Fusobacteriia, Gammaproteobacteria, Halobacteria, Hydrogenophilalia, Ignavibacteria, "Ignavibacteriia", Kiritimatiellae, Longimicrobiia corrig., Methanobacteria, Mollicutes, Negativicutes, Polyangiia corrig., Sphingobacteriia, Terrimicrobiia corrig., "Thermodesulfobacteriia", Verrucomicrobiae, Verrucomicrobiia corrig., "Verrucomicrobiia", Balneatricaceae corrig., Catalinimonadaceae corrig., Ferroplasmataceae corrig., Halobacteriovoracaceae corrig., Nocardiopsidaceae corrig., Phaselicystaceae corrig., Proteinivoracaceae corrig., Spirosomataceae corrig., Acidimicrobiidae corrig., Coriobacteriidae corrig., Corynebacteriineae corrig., Frankiineae corrig., Propionibacteriineae corrig., Pseudonocardiineae corrig., Streptosporangiineae corrig.. Request for an opinion: Int J Syst Evol Microbiol 2016; 66:4296-4298. "Implementation of Rule 8 of the International Code of Nomenclature of Prokaryotes for the renaming of classes. Request for an Opinion."

Int J Syst Evol Microbiol 2022; 72:5481. "Opinion 115 rejects the epithet of Moorella thermoautotrophica (Wiegel et al. 1981) Collins et al. 1994, which is regarded as a nomen confusum" (cited from the abstract). Affected taxon names: Clostridium thermautotrophicum corrig., Clostridium thermoautotrophicum, Moorella thermoautotrophica. Request for an opinion: Int J Syst Evol Microbiol 2016; 66:3249-3251. "The status of the species Moorella thermoautotrophica Wiegel et al. 1981. Request for an Opinion."

Int J Syst Evol Microbiol 2022; 72:5481. "Opinion 114 denies the request to reject the name Enterobacter siamensis Khunthongpan et al. 2014" (cited from the abstract). Affected taxon names: Enterobacter siamensis. Request for an opinion: Int J Syst Evol Microbiol 2016; 66:524-525. "The status of the species Enterobacter siamensis Khunthongpan et al. 2014. Request for an Opinion."

Int J Syst Evol Microbiol 2022; 72:5481. "Opinion 113 denies the request to reject Shewanella irciniae Lee et al. 2006" (cited from the abstract). Affected taxon names: Shewanella irciniae. Request for an opinion: Int J Syst Evol Microbiol 2015; 65:2774. "The status of the species Shewanella irciniae Lee et al. 2006. Request for an opinion."

Int J Syst Evol Microbiol 2022; 72:5481. "Opinion 112 denies the request to place Seliberia Aristovskaya and Parinkina 1963 (Approved Lists 1980) on the list of rejected names because the information provided is insufficient" (cited from the abstract). Affected taxon names: Seliberia. Request for an opinion: Int J Syst Evol Microbiol 2015; 65:2337-2340. "The status of the genus Seliberia Aristovskaya and Parinkina 1963 (Approved Lists 1980) and the species Seliberia stellata Aristovskaya and Parinkina 1963 (Approved Lists 1980). Request for an Opinion."

Int J Syst Evol Microbiol 2022; 72:5197. "The Judicial Commission reaffirms in Opinion 111 that Methanocorpusculum parvum Zellner et al. 1988 is the nomenclatural type of Methanocorpusculum Zellner et al. 1988 and further emphasizes that the species was not in danger of losing this status" (cited from the abstract). Affected taxon names: Methanocorpusculum. Requests for an opinion: Int J Syst Evol Microbiol 2015; 65:2013-2014. "The correct name of the type species of the genus Methanocorpusculum. Request for an Opinion." — Int J Syst Evol Microbiol 2016; 66:4900-4904. "The nomenclatural type of the genus Methanocorpusculum Zellner et al. 1988 and the selection of the correct name."

Int J Syst Evol Microbiol 2022; 72:5197. "[...] the Judicial Commission concludes in Opinion 110 that the name Actinobaculum massiliense corrig. Greub and Raoult 2006 had not met the requirements for valid publication" (cited from the abstract). Affected taxon names: "Actinobaculum massiliae", "Actinobaculum massiliense" corrig.. Request for an opinion: Int J Syst Evol Microbiol 2015; 65:1102-1103. "The status of the species Actinobaculum massiliense (Greub and Raoult 2006). Request for an Opinion."

Int J Syst Evol Microbiol 2022; 72:5197. "In Opinion 109, which addresses three Requests for an Opinion, the Judicial Commission denies the requests to place the names Bacillus aerius Shivaji et al. 2006, Bacillus aerophilus Shivaji et al. 2006 and Bacillus stratosphericus Shivaji et al. 2006 on the list of rejected names. Instead, it is concluded that these three names had not met the requirements for valid publication" (cited from the abstract). Affected taxon names: "Bacillus aerius", "Bacillus aerophilus", "Bacillus stratosphericus". Requests for an opinion: Int J Syst Evol Microbiol 2015; 65:1101. "The status of the species Bacillus aerophilus and Bacillus stratosphericus. Request for an Opinion." — Int J Syst Evol Microbiol 2015; 65:2341. "The status of the species Bacillus aerius. Request for an Opinion." — Int J Syst Evol Microbiol 2015; 65:3228-3231. "Identification of strains Bacillus aerophilus MTCC 7304^T as Bacillus altitudinis and Bacillus stratosphericus MTCC 7305^T as a Proteus sp. and the status of the species Bacillus aerius Shivaji et al. 2006. Request for an Opinion."

Int J Syst Evol Microbiol 2022; 72:5197. "Opinion 108 denies the request to place Hyphomonas rosenbergii Weiner et al. 2000 on the list of rejected names because the information provided to the Judicial Commission is not sufficient to draw a conclusion on this matter" (cited from the abstract). Affected taxon names: Hyphomonas rosenbergii, Thermomicrobium fosteri. Request for an opinion: Int J Syst Evol Microbiol 2015; 65:321. "The status of the species Hyphomonas rosenbergii Weiner et al. 2000. Request for an Opinion."

Int J Syst Evol Microbiol 2022; 72:5197. "In Opinion 107, Thermomicrobium fosteri Phillips and Perry 1976 (Approved Lists 1980) is placed on the list of rejected names as a nomen dubium et confusum" (cited from the abstract). Affected taxon names: Thermomicrobium fosteri. Request for an opinion: Int J Syst Evol Microbiol 2014; 64:1065-1067. "What ever happened to Thermomicrobium fosteri Phillips and Perry 1976?"

Int J Syst Evol Microbiol 2022; 72:5197. "Opinion 106 addresses two Requests for an Opinion and results in the placement of the epithet hoagii in Corynebacterium hoagii (Morse 1912) Eberson 1918 (Approved Lists 1980) and Rhodococcus hoagii (Morse 1912) Kämpfer et al. 2014 on the list of rejected specific and subspecific epithets. Since this removes all known available earlier synonyms of Rhodococcus equi (Magnusson 1923) Goodfellow and Alderson 1977 (Approved Lists 1980), the request to conserve the epithet equi in this name is denied" (cited from the abstract). Affected taxon names: Corynebacterium hoagii, Rhodococcus equi, Rhodococcus hoagii. Requests for an opinion: Int J Syst Evol Microbiol 2014; 64:311-312. "Conservation of Rhodococcus equi (Magnusson 1923) Goodfellow and Alderson 1977 and rejection of Corynebacterium hoagii (Morse 1912) Eberson 1918." — Int J Syst Evol Microbiol 2020; 70:3572-3576. "Conservation of Rhodococcus equi (Magnusson 1923) Goodfellow and Alderson 1977 and rejection of Rhodococcus hoagii (Morse 1912) Kampfer et al. 2014. Request for an opinion."

Int J Syst Evol Microbiol 2022; 72:5197. "In Opinion 105, it is emphasized that the name Rhodoligotrophos Fukuda et al. 2012 does not contravene the Code. The request to orthographically correct Rhodoligotrophos Fukuda et al. 2012 to Rhodoligotrophus corrig. Fukuda et al. 2012 is denied" (cited from the abstract). Affected taxon names: Rhodoligotrophos. Request for an opinion: Int J Syst Evol Microbiol 2013; 63:3545. "Proposal to change the name Rhodoligotrophos Fukuda et al. 2012, 1947 to Rhodoligotrophus. Request for an Opinion."

Int J Syst Evol Microbiol 2022; 72:5197. "[...] because a neotype may be designated, in Opinion 104 the request to place the name Beijerinckia fluminensis Döbereiner and Ruschel 1958 (Approved Lists 1980) on the list of rejected names is denied" (cited from the abstract). Affected taxon names: Beijerinckia fluminensis. Request for an opinion: Int J Syst Evol Microbiol 2011; 61:1757-1759. "The status of the species Beijerinckia fluminensis Dobereiner and Ruschel 1958. Request for an Opinion."

Int J Syst Evol Microbiol 2022; 72:5197. "In Opinion 103, the request to place the name Spirillum volutans Ehrenberg 1832 (Approved Lists 1980) on the list of rejected names is denied because a neotype may be designated" (cited from the abstract). Affected taxon names: Spirillum, Spirillum volutans. Request for an opinion: Int J Syst Evol Microbiol 2009; 59:2916-2920. "Proposal of Spirillum winogradskyi sp. nov., a novel microaerophilic species, an emended description of the genus Spirillum and Request for an Opinion regarding the status of the species Spirillum volutans Ehrenberg 1832."

Int J Syst Evol Microbiol 2020; 70:5177-5181. "Opinion 102 concludes that strain Cc m8 (=DSM 14697=CIP 109128=JCM 12621) is an established neotype strain for the species Myxococcus macrosporus, replacing the designated type strain Windsor M271, and that strain Mx s8 (=DSM 14675=JCM 12634) is an established neotype strain for the species Myxococcus stipitatus, replacing the designated type strain Windsor M78" (cited from the abstract). Affected taxon names: Myxococcus macrosporus, Myxococcus stipitatus. Request for an opinion: Int J Syst Evol Microbiol 2009; 59:2122-2128. "Emended descriptions of the genera Myxococcus and Corallococcus, typification of the species Myxococcus stipitatus and Myxococcus macrosporus and a proposal that they be represented by neotype strains. Request for an Opinion."

Int J Syst Evol Microbiol 2020; 70:5177-5181. "Opinion 101 approves the request that strain ATCC 25946 (=DSM 14877) serves as the type strain of Melittangium lichenicola instead of strain ATCC 25944, formally correcting the Approved Lists of Bacterial Names" (cited from the abstract). Affected taxon names: Melittangium lichenicola. Request for an opinion: Int J Syst Evol Microbiol 2008; 58:2991-2992. "Replacement of ATCC 25944^T, the current type strain of Melittangium lichenicola, with ATCC 25946. Request for an opinion."

Int J Syst Evol Microbiol 2020; 70:5177-5181. "According to Opinion 100, the request for the recognition of strain A1-86 (=DSM 17629=NCIMB 14373) as the neotype strain of Eubacterium rectale (Hauduroy et al. 1937) Prévot 1938 (Approved Lists 1980) is denied, ruling that a neotype does not need to be designated for E. rectale because strain VPI 0990 (=ATCC 33656=CIP 105953) is considered to be a duplicate isolate of the same strain as VPI 0989 (=ATCC 25578) and may serve as its nomenclatural type" (cited from the abstract). Affected taxon names: Eubacterium rectale. Request for an opinion: Int J Syst Evol Microbiol 2008; 58:1735-1736. "Proposal of a neotype strain (A1-86) for Eubacterium rectale. Request for an opinion."

Int J Syst Evol Microbiol 2020; 70:1439-1440. "[Opinion] 99 conclude[s] that in the absence of associated authentic type material, the [name] Pectinatus portalensis [is] not validly published" (cited from the abstract). Affected taxon names: "Pectinatus portalensis". Request for an opinion: Int J Syst Evol Microbiol 2008; 58:1507. "The status of the species Pectinatus portalensis Gonzalez et al. 2005. Request for an Opinion."

Int J Syst Evol Microbiol 2020; 70:1439-1440. "[Opinion] 98 conclude[s] that in the absence of associated authentic type material, the [name] Bacillus aeolius [is] not validly published" (cited from the abstract). Affected taxon names: "Bacillus aeolius". Request for an opinion: Int J Syst Evol Microbiol 2008; 58:1268-1270. "Bacillus aeolius DSM 15084^T (=CIP 107628^T) is a strain of Bacillus licheniformis."

Int J Syst Evol Microbiol 2020; 70:1439-1440. "According to Opinion 97, the request for the conservation of the name Streptomyces scabies is denied, allowing the continued use of the correction Streptomyces scabiei" (cited from the abstract). Note that this request and opinion do not deal with conservation of names as regulated by Rule 56b. Affected taxon names: Streptomyces scabies. Request for an opinion: Int J Syst Evol Microbiol 2007; 57:2447-2448. "Recommendation for the conservation of the name Streptomyces scabies. Request for an Opinion."

Int J Syst Evol Microbiol 2014; 64:3593-3594. "The species Leifsonia rubra Reddy et al. 2003 was not represented by an authentic deposit of a type strain at the time of effective publication" (cited from the abstract). Affected taxon names: Leifsonia rubra. Request for an opinion: Int J Syst Evol Microbiol 2007; 57:1163. "The status of the species Leifsonia rubra Reddy et al. 2003. Request for an opinion."

Int J Syst Evol Microbiol 2014; 64:3920-3921. "The Judicial Commission affirms that […] the combination Lysobacter enzymogenes subsp. enzymogenes Christensen and Cook 1978, the combination Lysobacter enzymogenes subsp. cookii Christensen 1978 and the combination Streptococcus casseliflavus (Mundt and Graham 1968) Vaughan et al. 1979 [...] are not to be considered to be included on the Approved Lists of Bacterial Names" (cited from the abstract). Affected taxon names: Enterococcus casseliflavus, Lysobacter enzymogenes. Request for an opinion: Int J Syst Evol Microbiol 2006; 56:2707-2709. "Lysobacter enzymogenes subsp. enzymogenes Christensen and Cook 1978, L. enzymogenes subsp. cookii Christensen 1978 and Streptococcus casseliflavus (Mundt and Graham 1968) Vaughan et al. 1978 should have been cited in the Approved Lists of Bacterial Names. Request for an opinion."

Int J Syst Evol Microbiol 2014; 64:3590-3592. "The Judicial Commission affirms that [...] the combination Agrobacterium radiobacter (Beijerinck and van Delden 1902) Conn 1942 has priority over the combination Agrobacterium tumefaciens (Smith and Townsend 1907) Conn 1942 when the two are treated as members of the same species [...]. The type species of the genus is Agrobacterium tumefaciens (Smith and Townsend 1907) Conn 1942" (cited from the abstract). Affected taxon names: Agrobacterium radiobacter, Agrobacterium tumefaciens. Request for an opinion: Int J Syst Evol Microbiol 2006; 56:491-493. "Proposal that Agrobacterium radiobacter has priority over Agrobacterium tumefaciens. Request for an opinion."

Int J Syst Evol Microbiol 2014; 64:3588-3589. "The Judicial Commission affirms that [...] the designated type strain of Pseudomonas halophila Fendrich 1989 is DSM 3051 [...] and the designated type strain of Halovibrio variabilis Fendrich 1989 is DSM 3050 [...]" (cited from the abstract). Affected taxon names: Halomonas utahensis, Halomonas variabilis, Halovibrio denitrificans, Halovibrio variabilis, Pseudomonas halophila. Request for an opinion: Int J Syst Evol Microbiol 2006; 56:487-489. "The status of the genus name Halovibrio Fendrich 1989 and the identity of the strains Pseudomonas halophila DSM 3050 and Halomonas variabilis DSM 3051. Request for an opinion."

Int J Syst Evol Microbiol 2014; 64:3586-3587. "The Judicial Commission affirms that the request that the current use of the genus name Mycoplasma be maintained and Mycoplasma coccoides be considered a legitimate name is denied" (cited from the abstract). Affected taxon names: Eperythrozoon coccoides, "Mycoplasma coccoides". Request for an opinion: Int J Syst Evol Microbiol 2005; 55:1385-1391. "Phylogenetic analysis and description of Eperythrozoon coccoides, proposal to transfer to the genus Mycoplasma as Mycoplasma coccoides comb. nov. and Request for an Opinion."

Int J Syst Evol Microbiol 2014; 64:3584-3585. "ATCC 43642 [...] is designated the type strain of Leptospira interrogans (Stimson 1907) Wenyon 1926" (cited from the abstract). Affected taxon names: Leptospira interrogans. Request for an opinion: Int J Syst Evol Microbiol 2004; 54:2439. "Proposal to list ATCC 43642 as the type strain of Leptospira interrogans in the Approved Lists of Bacterial Names. Request for an opinion."

Int J Syst Evol Microbiol 2014; 64:3582-3583. "The Judicial Commission affirms that [...] the combination Enterobacter agglomerans is to be cited as Enterobacter agglomerans (Beijerinck 1888) Ewing and Fife 1972 and the combination Pantoea agglomerans is to be cited as Pantoea agglomerans (Beijerinck 1888) Gavini et al. 1989" (cited from the abstract). Affected taxon names: Enterobacter agglomerans, Pantoea agglomerans. Request for an opinion: Int J Syst Evol Microbiol 2004; 54:2437. "Proposal to acknowledge Beijerinck as the original author of the species Pantoea agglomerans. Request for an opinion."

Int J Syst Evol Microbiol 2014; 64:3580-3581. "The Judicial Commission affirms that the combination Micromonospora aurantiaca Sveshnikova et al. 1969 (Approved Lists 1980) may not serve as the correct name of the taxon" (cited from the abstract). Affected taxon names: Micromonospora aurantiaca. Request for an opinion: Int J Syst Evol Microbiol 2004; 54:1905-1906. "A replacement name of the specific epithet aurantiaca in Micromonospora aurantiaca Sveshnikova et al. 1969 (Approved Lists 1980) and a proposal to treat the combination Micromonospora aurantiaca Sveshnikova et al. 1969 as a rejected name. Request for an opinion."

Int J Syst Evol Microbiol 2014; 64:3578-3579. "The Judicial Commission affirms that the combination Lactobacillus rogosae Holdeman and Moore 1974 represented by the type strain ATCC 27753 listed on the Approved Lists of Bacterial Names does not appear to be currently represented by an extant type strain" (cited from the abstract). Affected taxon names: Lactobacillus rogosae. Request for an opinion: Int J Syst Evol Microbiol 2004; 54:1903-1904. "The status of the species Lactobacillus rogosae Holdeman and Moore 1974. Request for an opinion."

Int J Syst Evol Microbiol 2008; 58:1976-1978. The Judicial Commission rules that the name Corynebacterium ilicis Mandel et al. 1961 is represented by the type strain ICMP 2608 = ICPB CI144 and is reported to be a plantpathogenic species. Arthrobacter ilicis is represented by the type strain DSM 20138 = ATCC 14264 = NCPPB 1228 and is not a homotypic synonym of Corynebacterium ilicis Mandel et al. 1961, and is reported not to be a plant pathogen. The authorship is to be cited as Arthrobacter ilicis Collins et al. 1982 and typification and the description of this species are to be found in Collins et al. 1981 [COLLINS (M.D.), JONES (D.) and KROPPENSTEDT (R.M.): Zentralbl Bakteriol Parasitenkd Infektionskr Hyg, 1981, Abt I Orig C2 , 318–323]. Affected taxon names: Arthrobacter ilicis, Corynebacterium ilicis. Request for an opinion: Int J Syst Evol Microbiol 2004; 54:303-305. "Reconsideration of Arthrobacter ilicis (Mandel et al. 1961) Collins et al. 1982 as a plant-pathogenic species. Proposal to emend the authority and description of the species. Request for an opinion."

Int J Syst Evol Microbiol 2008; 58:1975. The Judicial Commission affirms that, according to Rule 40d, formerly Rule 46, of the Bacteriological Code, the authorship of a number of subspecies names included on the Approved Lists of Bacterial Names must be corrected. These names are Acetobacter aceti subsp. aceti, Acetobacter pasteurianus subsp. pasteurianus, Bacteroides melaninogenicus subsp. melaninogenicus, Campylobacter fetus subsp. fetus, Mycobacterium chelonae subsp. chelonae, Propionibacterium freudenreichii subsp. freudenreichii, Selenomonas ruminantium subsp. ruminantium, Streptoverticillium fervens subsp. fervens, Veillonella parvula subsp. parvula and Zymomonas mobilis subsp. mobilis. Affected taxon names: Mycobacterium chelonei. Request for an opinion: Int J Syst Evol Microbiol 2002; 52:2321-2322. "Necessary corrections to the Approved Lists of Bacterial Names according to Rule 40d (formerly Rule 46). Request for an opinion."

Int J Syst Evol Microbiol 2008; 58:1974. The Judicial Commission rules that the adjectival form is to be conserved in the specific epithet forsythia in Tannerella forsythia. Note that this request and opinion do not deal with conservation of names as regulated by Rule 56b. Affected taxon names: Tannerella forsythensis, Tannerella forsythia corrig.. Request for an opinion: Int J Syst Evol Microbiol 2003; 53:2111-2112. "Proposal to conserve the adjectival form of the specific epithet in the reclassification of Bacteroides forsythus Tanner et al. 1986 to the genus Tannerella Sakamoto et al. 2002 as Tannerella forsythia corrig., gen. nov., comb. nov. Request for an Opinion."

Int J Syst Evol Microbiol 2008; 58:1973. The Judicial Commission affirms that the genus name Sinorhizobium Chen et al. 1988 is a later synonym of Ensifer Casida 1982, and that the former genus name is not conserved over the latter genus name. The species name "Sinorhizobium adhaerens" is not validly published. Affected taxon names: Ensifer, Sinorhizobium, Ensifer adhaerens. Requests for an opinion: Int J Syst Evol Microbiol 2003; 53:1207-1217. "Description of new Ensifer strains from nodules and proposal to transfer Ensifer adhaerens Casida 1982 to Sinorhizobium as Sinorhizobium adhaerens comb. nov. Request for an opinion." — Int J Syst Evol Microbiol 2003; 53:2107-2110. "The genus name Ensifer Casida 1982 takes priority over Sinorhizobium Chen et al. 1988, and Sinorhizobium morelense Wang et al. 2002 is a later synonym of Ensifer adhaerens Casida 1982. Is the combination "Sinorhizobium adhaerens" (Casida 1982) Willems et al. 2003 legitimate? Request for an Opinion."

Int J Syst Evol Microbiol 2014; 64:3595-3596. "The subgenus names Moraxella and Branhamella (in the genus Moraxella) are not to be considered to be included on the Approved Lists of Bacterial Names, nor are they to be considered to be validly published by inclusion on Validation List 15" (cited from the abstract). Affected taxon names: Moraxella. Request for an opinion: Int J Syst Evol Microbiol 2008; 58:1772-1774. "Challenging Opinion 83."

Int J Syst Evol Microbiol 2008; 58:1766-1767. The Judicial Commission of the International Committee for Systematics of Prokaryotes rules that the following names should have been included on the Approved Lists of Bacterial Names, Moraxella (subgen. Branhamella Bøvre 1979), Moraxella (subgen. Moraxella Lwoff 1939), Moraxella (subgen. Branhamella Bøvre 1979) catarrhalis, Moraxella (subgen. Branhamella Bøvre 1979) caviae, Moraxella (subgen. Branhamella Bøvre 1979) ovis, Moraxella (subgen. Moraxella Lwoff 1939) atlantae, Moraxella (subgen. Moraxella Lwoff 1939) bovis, Moraxella (subgen. Moraxella Lwoff 1939) lacunata, Moraxella (subgen. Moraxella Lwoff 1939) nonliquefaciens, Moraxella (subgen. Moraxella Lwoff 1939) osloensis, Moraxella (subgen. Moraxella Lwoff 1939) phenylpyruvica. Proposals to alter Rule 34a were rejected. Affected taxon names: Acetobacter aceti, Acetobacter liquefaciens, Acetobacter liquefaciens. Request for an opinion: Int J Syst Evol Microbiol 2001; 51:1939-1941. "Nomenclature of the subgenera Moraxella and Branhamella and of the nine species included in these subgenera and proposal to modify rule 34a of the Bacteriological Code (1990 Revision). Request for an opinion."

Int J Syst Evol Microbiol 2008; 58:1764-1765. At the meeting of the Judicial Commission in 2005 at the IUMS Bacteriology and Applied Microbiology Congress in San Francisco, the Judicial Commission of the International Committee for Systematics of Prokaryotes ruled that typification of Lactobacillus casei (Orla-Jensen 1916) Hansen and Lessel 1971 is based on ATCC 393, that ATCC 334 is a member of the taxon Lactobacillus paracasei Collins et al. 1989, that the proposal to revive the name Lactobacillus zeae contravenes Rules 51b (1) and (2) of the International Code of Nomenclature of Prokaryotes (the Code) and that the rejection of the name Lactobacillus paracasei together with the proposal of a neotype for Lactobacillus casei are not in accordance with the Rules of the Code. Affected taxon names: Lactobacillus yonginensis, Lactobacillus zeae. Request for an opinion: Int J Syst Evol Microbiol 2002; 52:285-287. "The status of the species Lactobacillus casei (Orla-Jensen 1916) Hansen and Lessel 1971 and Lactobacillus paracasei Collins et al. 1989. Request for an opinion."

Int J Syst Evol Microbiol 2008; 58:1755-1763. Based on a list of 205 names proposed in original articles in the International Journal of Systematic and Evolutionary Microbiology or cited in Validation Lists from January 2001 that are not in accordance with Rules 27(3) and 30 of the International Code of Nomenclature of Prokaryotes, the Judicial Commission rules that names contained in lists 2–4 are to be considered to be validly published and that deposit in more than one collection in different countries is documented. Names included in list 1 are only to be considered validly published if evidence is presented that the strains have been deposited in additional collections, as laid down by Rules 27 (3) and 30 of the Code. Affected taxon names: Acetobacter cibinongensis, Acetobacterium tundrae, Acetobacter orientalis, Acetobacter syzygii, Achromobacter denitrificans, Actinocorallia aurantiaca, Actinocorallia glomerata, Actinocorallia libanotica, Actinocorallia longicatena, Actinomadura viridilutea, Actinoplanes capillaceus, Actinoplanes friuliensis, Aeromonas culicicola, "Alkalispirillum mobile", Anaerobranca gottschalkii, Anaerococcus octavius, Anaerococcus prevotii, Anaeromyxobacter dehalogenans, Arcanobacterium pluranimalium, Asaia siamensis, Azoarcus buckelii, Azospirillum doebereinerae, Bacillus selenitireducens, Bacillus thermantarcticus corrig., Borrelia sinica, Bradyrhizobium yuanmingense, Carboxydibrachium pacificum corrig., Cellulosimicrobium cellulans, "Chlorobaculum limnaeum", "Chlorobaculum parvum", Chlorobaculum thiosulfatiphilum, "Chlorobium clathratiforme", Chlorobium luteolum, Clostridium hungatei, Clostridium phytofermentans, Clostridium saccharoperbutylacetonicum, Comamonas denitrificans, Comamonas koreensis, Corynebacterium aurimucosum, Corynebacterium casei, Corynebacterium mooreparkense, Cryptosporangium aurantiacum, Dehalospirillum multivorans, Desulfitobacterium chlororespirans, Desulfitobacterium metallireducens, Desulfobacula phenolica, Desulfobulbus mediterraneus, Desulfomicrobium orale, "Desulfomonile limimaris", Desulfotignum balticum, "Desulfovibrio dechloracetivorans", Desulfovibrio mexicanus, Desulfovibrio vietnamensis, Dethiosulfovibrio acidaminovorans, Dethiosulfovibrio marinus, Dethiosulfovibrio russensis, Dorea formicigenerans, Ensifer kummerowiae, Enterobacter cowanii, Enterococcus villorum, Gallicola barnesae, Geobacillus kaustophilus, Geobacillus stearothermophilus, Geobacillus thermodenitrificans, Geobacillus thermoglucosidasius, Geobacillus thermoleovorans, Geoglobus ahangari, Grimontia hollisae, Hahella chejuensis, Haloferax alexandrinus, Halorhodospira neutriphila, Helicobacter aurati, Helicobacter canadensis, Helicobacter typhlonius, "Heliobacterium sulfidophilum", Heliobacterium undosum, "Heliorestis baculata", Herbaspirillum frisingense, "Hydrogenobacter subterraneus", Hydrogenophaga intermedia, "Ketogulonicigenium vulgare" corrig., Kordia algicida, Lactobacillus ferintoshensis, Lamprocystis purpurea, Legionella drozanskii, Legionella fallonii, Legionella rowbothamii, Lentzea violacea, Leptotrichia trevisanii, Leuconostoc gasicomitatum, Marinibacillus marinus, Marinobacterium jannaschii, Marinobacterium stanieri, Marinospirillum alkaliphilum, Methanocaldococcus fervens, Methanocaldococcus infernus, Methanocaldococcus jannaschii, "Methanocaldococcus jannaschii", Methanocaldococcus vulcanius, Methanothermococcus thermolithotrophicus, Methanotorris igneus, "Methylomicrobium buryatense", Methylophilus leisingeri corrig., Methylovorus mays, Microcystis aeruginosa, Microcystis aeruginosa, Microcystis aeruginosa, Mycobacterium heckeshornense, Mycoplasma agassizii, Mycoplasma alligatoris, Mycoplasma microti, Nautilia lithotrophica, "Neochlamydia hartmannellae", "Neorickettsia risticii", "Neorickettsia sennetsu", Nitrobacter hamburgensis, Nitrobacter vulgaris, "Nitrosomonas aestuarii", "Nitrosomonas communis", "Nitrosomonas eutropha", "Nitrosomonas halophila", "Nitrosomonas marina", "Nitrosomonas nitrosa", "Nitrosomonas oligotropha", "Nitrosomonas ureae", "Nitrospira moscoviensis", Nocardia cyriacigeorgica corrig., Nocardia vinacea, Novosphingobium arabidopsis, Novosphingobium aromaticivorans corrig., Novosphingobium capsulatum, Novosphingobium rosa corrig., Novosphingobium stygium corrig., Novosphingobium subarcticum, Novosphingobium subterraneum corrig., Oceanobacter kriegii, Olsenella profusa, Olsenella uli, Opitutus terrae, "Paenibacillus granivorans", Paracoccus kondratievae, Peptoniphilus asaccharolyticus, Peptoniphilus harei, Peptoniphilus indolicus, Peptoniphilus ivorii, Planococcus alkanoclasticus, Planomicrobium mcmeekinii, Planomicrobium okeanokoites, "Prochlorococcus marinus", Propionispora vibrioides, Propionivibrio pelophilus, Prosthecochloris vibrioformis, Pseudomonas brenneri, Pseudomonas cedrina corrig., Pseudomonas cremoricolorata, Pseudomonas orientalis, Pseudomonas parafulva, Pseudomonas psychrophila, Pseudospirillum japonicum, Rhizobium indigoferae, Rhodobaca bogoriensis, Rhodoferax antarcticus, "Rickettsia felis", "Roseospirillum parvum", "Selenihalanaerobacter shriftii", Sinorhizobium kummerowiae, Sinorhizobium morelense, Sphingobium chlorophenolicum, Sphingobium herbicidovorans, Sphingobium yanoikuyae, Sphingomonas aquatilis, Sphingomonas cloacae, Sphingomonas koreensis, Sphingomonas taejonensis, Sphingopyxis macrogoltabida, Sphingopyxis terrae, Sporosarcina globispora, Sporosarcina pasteurii, Sporosarcina psychrophila, Streptococcus lutetiensis, Streptococcus pasteurianus, Sulfolobus tokodaii, Sulfurospirillum multivorans, Syntrophus aciditrophicus, Tenacibaculum maritimum, Tenacibaculum ovolyticum, Terasakiella pusilla, Thauera aminoaromatica, Thauera chlorobenzoica, Thauera phenylacetica, Thermococcus acidaminovorans, Thermococcus atlanticus, Thermococcus sibiricus, Thermococcus waiotapuensis, "Thermoproteus uzoniensis", "Thioflavicoccus mobilis", Treponema parvum, Trichlorobacter thiogenes, "Tropheryma whipplei", Virgisporangium aurantiacum corrig., Virgisporangium ochraceum corrig., Zobellia uliginosa, Alicyclobacillus acidocaldarius subsp. rittmannii, Clostridium stercorarium subsp. leptospartum, Clostridium stercorarium subsp. thermolacticum, Desulfotomaculum thermobenzoicum subsp. thermosyntrophicum, Mycobacterium bovis subsp. caprae, Streptococcus gallolyticus subsp. pasteurianus. Request for an opinion: Int J Syst Evol Microbiol 2004; 54:293-301. "Status of strains that contravene Rules 27(3) and 30 of the Bacteriological Code. Request for an opinion."

Int J Syst Evol Microbiol 2005; 55:521-524. "The present article explains the nomenclatural consequences of Opinion 80, together with a clear presentation of the taxonomy that results when applying the currently widely accepted interpretation that the genus Salmonella currently includes only two species" (cited from the abstract). Affected taxon names: Salmonella, Salmonella paratyphi. Request for an opinion: See Opinion.

Int J Syst Evol Microbiol 2005; 55:519-520. The Judicial Commission of the ICSP has decided that the type species of the genus Salmonella Lignieres 1900 (Approved Lists 1980) is Salmonella enterica (ex Kauffmann and Edwards 1952) Le Minor and Popoff 1987, and that the type strain of this species is strain LT2 (= ATCC 43971 = CIP 60.62 = NCIMB 11450 = NCTC 12416). In addition, the epithet enterica in Salmonella enterica is conserved over all earlier epithets, which may be applied to this species. (Only conservation of an epithet, and over all earlier homotypic synonyms.) Affected taxon names: Salmonella, Salmonella enterica, Salmonella enteritidis, Salmonella paratyphi, Salmonella typhi, Salmonella typhimurium. Requests for an opinion: Int J Syst Bacteriol 1987; 37:465-468. "Request for an Opinion. Designation of Salmonella enterica sp. nov., nom. rev., as the type and only species of the genus Salmonella." — Int J Syst Bacteriol 1999; 49:927-930. "Revised Salmonella nomenclature: designation of Salmonella enterica (ex Kauffmann and Edwards 1952) Le Minor and Popoff 1987 sp. nov., nom. rev. as the neotype species of the genus Salmonella Lignieres 1900 (approved lists 1980), rejection of the name Salmonella choleraesuis (Smith 1894) Weldin 1927 (approved lists 1980), and conservation of the name Salmonella typhi (Schroeter 1886) Warren and Scott 1930 (approved lists 1980). Request for an opinion." — Int J Syst Evol Microbiol 2000; 50:941-944. "Proposal of Salmonella paratyphi sp. nov., nom. rev. and request for an opinion to conserve the specific epithet paratyphi in the binary combination Salmonella paratyphi as nomen epitheton conservandum." — Int J Syst Evol Microbiol 2000; 50:945-947. "Recognition of nomenclatural standing of Salmonella typhi (Approved Lists 1980), Salmonella enteritidis (Approved Lists 1980) and Salmonella typhimurium (Approved Lists 1980), and conservation of specific epithets enteritidis and typhimurium. Request for an Opinion." — Int J Syst Evol Microbiol 2000; 50:1693-1694. "Arguments against the replacement of type species of the genus Salmonella from Salmonella choleraesuis to 'Salmonella enterica' and the creation of the term 'neotype species', and for conservation of Salmonella choleraesuis. Request for an opinion."

Int J Syst Evol Microbiol 2014; 64:3599-3602. "The Judicial Commission ruled that names at the rank of class and order proposed by Cavalier-Smith (Int. J. Syst. Evol. Microbiol., 52, 7–76, 2002) are to be placed on the List of Rejected Names (nomina rejicienda) and the use of names proposed in that publication above the rank of class is to be actively discouraged" (cited from the abstract). Affected taxon names: Acidobacteria, Actinomycetes, Alphabacteria, Anoxyphotobacteria, Arabobacteria, Archaeobacteria, Archaeoglobea, Arthrobacteria, Bacteria, Chlamydiae, Chlorobacteria, Chlorobea, Chromatibacteria, Chroobacteria, Crenarchaeota, Deltabacteria, Epsilobacteria, Ferrobacteria, Firmibacteria, Flavobacteria, Gloeobacteria, Hadobacteria, Halomebacteria, Hormogoneae, Methanothermea, Microtatobiotes, Mollicutes, Oxyphotobacteria, Photobacteria, Picrophilea, Planctomycea, Protoarchaea, Schizomycetes, Scotobacteria, Spirochaetes, Streptomycetes, Teichobacteria, "Thermoprotea", Togobacteria, Acidobacteriales, Actinoplanales, Caryophanales, Cenarchaeales, "Candidatus Cenarchaeales", Chroococcales, Chroococcales corrig., Chroococcales, Chroococcales, Chroococcales, Geovibriales, Gloeobacterales, Nostocales corrig., Nostocales, Nostocales, Oscillatoriales, Oscillatoriales, Oscillatoriales, Picrophilales, Pleurocapsales, Pleurocapsales, Stigonematales, Streptomycetales, "Streptomycetales". Request for an opinion: See Opinion.

Int J Syst Evol Microbiol 2005; 55:517-518. The Judicial Commission of the ICSP has decided to correct the nomenclatural type of the 12 following orders: Acholeplasmatales Freundt et al. 1984, Halanaerobiales corrig. Rainey and Zhilina 1995, Halobacteriales Grant and Larsen 1989, Methanobacteriales Balch and Wolfe 1981, Methanococcales Balch and Wolfe 1981, Methanomicrobiales Balch and Wolfe 1981, Planctomycetales Schlesner and Stackebrandt 1987, Prochlorales (ex Lewin 1977) Florenzano et al. 1986, Sulfolobales Stetter 1989, Thermococcales Zillig 1988, Thermoproteales Zillig and Stetter 1982 and Verrucomicrobiales Ward-Rainey et al. 1996. Affected taxon names: Actinobacteria, Actinomycetes, Microtatobiotes, Proteobacteria, Schizomycetes, Scotobacteria, Acholeplasmatales, Methanobacteriales, Methanococcales, Methanomicrobiales, Prochlorales, Sulfolobales, Thermoproteales, Verrucomicrobiales. Request for an opinion: Int J Syst Evol Microbiol 2001; 51:725-727. "Nomenclatural type of orders: corrections necessary according to Rules 15 and 21a of the Bacteriological Code (1990 Revision), and designation of appropriate nomenclatural types of classes and subclasses. Request for an opinion."

Int J Syst Evol Microbiol 2005; 55:525-532. "Xth International (IUMS) Congress of Bacteriology and Applied Microbiology. Minutes of the meetings, 28, 29 and 31 July and 1 August 2002, Paris, France" (from the title). These minutes include the denial of some Requests for an Opinion for which no separate Judicial Opinions were published. Affected taxon names: Eubacterium tarantellae corrig., Nitrosococcus oceani corrig., Streptococcus criceti corrig., Streptococcus ratti corrig., Streptomyces rangoonensis corrig.. Request for an opinion: Int J Syst Evol Microbiol 2001; 51:723-724. "Recommended conservation of the names Streptococcus sanguis, Streptococcus rattus, Streptococcus cricetus, and seven other names included in the Approved Lists of Bacterial Names. Request for an opinion."

Int J Syst Evol Microbiol 2005; 55:515. The Judicial Commission of the ICSP has decided to place the genus Pelczaria Poston 1994 with the species Pelczaria aurantia Poston 1994 on the list of nomina taxorum rejicienda (rejected names of bacterial taxa) due to the lack of an authentic type or neotype strain. (Only rejection of names, no conservation of counterparts.) Affected taxon names: Pelczaria, Kocuria rosea, Pelczaria aurantia. Request for an opinion: Int J Syst Evol Microbiol 2000; 50:1695-1696. "The status of the genus Pelczaria (Poston 1994) and the species Pelczaria aurantia (Poston 1994). Request for an Opinion."

Int J Syst Evol Microbiol 2005; 55:513. The Judicial Commission of the ICSP decided that the type species of the genus Paenibacillus Ash et al. 1994 is Paenibacillus polymyxa (Prazmowski 1880) Ash et al. 1994. Affected taxon names: Paenibacillus. Request for an opinion: Int J Syst Evol Microbiol 2000; 50:939-940. "What is the type species of the genus Paenibacillus? Request for an opinion."

Int J Syst Evol Microbiol 2005; 55:511. The Judicial Commission of the ICSP decided that strain No. 43797 = NBRC (previously IFO) 3782 (= ATCC 700861 = JCM 11574), which was the originally designated type strain of Streptomyces rameus Shibata 1959 (Approved Lists 1980), has to replace ATCC 21273 (= DSM 41685 = NBRC 16196 = JCM 5064) as given in the Approved Lists. Affected taxon names: Streptomyces rameus. Request for an opinion: Int J Syst Bacteriol 1999; 49:931-932. "Replacement of ATCC 21273, the current type strain of Streptomyces rameus Shibata 1959, with IFO (now NBRC) 3782. Request for an Opinion."

Int J Syst Evol Microbiol 2014; 64:3597-3598. "Methanothrix thermophila Kamagata et al. 1992 contravenes Rule 51b and is placed on the List of Rejected Names" (cited from the abstract). Affected taxon names: Methanothrix, Methanosaeta thermophila, Methanothrix thermophila. Request for an opinion: Int J Syst Evol Microbiol 2008; 58:1768-1771. "Challenging Opinion 75."

Int J Syst Evol Microbiol 2008; 58:1753-1754. Boone and Kamagata 1998 requested a Judicial Opinion to reject the name Methanothrix soehngenii Huser et al. 1983 as a nomen confusum and to place this name on the list of rejected names. The Judicial Commission of the International Committee on Systematics of Prokaryotes has decided to place the genus Methanothrix with the species Methanothrix soehngenii Huser et al. 1983 on the list of nomina rejicienda, based on the fact that it is not represented by an axenic culture and contravenes Rule 31a of the International Code of Nomenclature of Prokaryotes. The species Methanothrix thermophila is transferred to the genus Methanosaeta as Methanosaeta thermophila (Kamagata et al. 1992) Boone and Kamagata 1998 comb. nov. (Only rejection of names, no conservation of counterparts.) Affected taxon names: Methanothrix thermophila. Request for an opinion: Int J Syst Bacteriol 1998; 48:1079-1080. "Rejection of the species Methanothrix soehngenii VP and the genus Methanothrix VP as nomina confusa, and transfer of Methanothrix thermophila VP to the genus Methanosaeta VP as Methanosaeta thermophila comb. nov. Request for an Opinion."

Int J Syst Evol Microbiol 2003; 53:933. In a request for an Opinion, Grant et al. proposed strain NCIMB 13488 as neotype of Halorubrum trapanicum, arguing that strain NRC 34021, derived from Petter’s original isolate of Halorubrum trapanicum is no longer available. They state, however, that the proposed neotype is also derived from Petter’s original isolate. The Judicial Commission decided that Halorubrum trapanicum strain NCIMB 13488 will not be the neotype, but since it is derived from NRC 34021, which in turn is derived from Petter’s original isolate, it is "a strain on which the original description was based" (Rule 18c), and may therefore also serve as the type strain of the species. Affected taxon names: Halorubrum trapanicum. Request for an opinion: Int J Syst Bacteriol 1998; 48:1077-1078. "Proposal of strain NCIMB 13488 as neotype of Halorubrum trapanicum. Request for an Opinion."

Int J Syst Evol Microbiol 2003; 53:931. The Judicial Commission decided that Paenibacillus durus has priority over Paenibacillus azotofixans, further that the type strain of Paenibacillus durus is VPI 6563 (= ATCC 27763 = DSM 1735), not P3L5 (= ATCC 35681). Paenibacillus azotofixans is a later synonym of Paenibacillus durus. The argument that the specific epithet azotofixans would be more informative than the specific epithet durus cannot be taken into consideration when the priority is clear. Affected taxon names: Paenibacillus azotofixans. Request for an opinion: Int J Syst Bacteriol 1998; 48:325-326. "Paenibacillus azotofixans (Seldin et al. 1984) Ash et al. 1995 does not have priority over Paenibacillus durum (Smith and Cato 1974) Collins et al. 1994: request for an opinion."

Int J Syst Evol Microbiol 2003; 53:929. The Judicial Commission denied the Request for an Opinion by Dellaglio and Klein (1997), who had doubted the valid publication of Lactobacillus panis by Wiese et al. (1996), because the type strain DSM 6035 at the time of its publication was not available from any culture collection. The Judicial Commission decided that strain DSM 6035 is the type strain of Lactobacillus panis with the consequence, that the name Lactobacillus panis has been validly published. Affected taxon names: Lactobacillus panis. Request for an opinion: Int J Syst Bacteriol 1997; 47:910. "Rejection of Lactobacillus panis (Wiese et al. 1996). Request for an opinion."

Int J Syst Evol Microbiol 2003; 53:927. The Judicial Commission decided that the date of valid publication of the genus name Thermodesulfobacterium is 1995. This holds as well for the species name Thermodesulfobacterium commune with the type strain: YSRA-1 (ATCC 33708 = DSM 2178) and for the species name Thermodesulfobacterium thermophilum (originally described as Desulfovibrio thermophilus) with the type strain VKM V-1128. The type of the genus Thermodesulfobacterium is Thermodesulfobacterium commune. The Judicial Commission further decided that Thermodesulfobacterium mobile Rozanova and Pivovarova (1988) is an illegitimate later synonym of Thermodesulfobacterium thermophilum. Affected taxon names: Thermodesulfobacterium mobile, Thermodesulfobacterium thermophilum. Request for an opinion: Int J Syst Bacteriol 1996; 46:622. "Irregularities in the validation of the genus Thermodesulfobacterium and its species. Request for an Opinion."

Int J Syst Bacteriol 1999; 49:1949. The Judicial Commission decided that strain NCTC 4175, used as the neotype strain of Proteus vulgaris since 1963, be replaced by strain ATCC 29905. Affected taxon names: Proteus vulgaris. Request for an opinion: Int J Syst Bacteriol 1995; 45:870-871. "Replacement of NCTC 4175, the current type strain of Proteus vulgaris, with ATCC 29905. Request for an opinion."

Int J Syst Bacteriol 1999; 49:339. The name Clostridium putrificum is rejected while Clostridium botulinum is conserved for toxigenic strains and Clostridium sporogenes is conserved for non-toxigenic strains. Together with Opinion 60, this is one of the two examples for the rejection of names combined with the conservation of names in order to retain two distinct nomenspecies. As regulated by Rule 56a (5) Note 1, the treatment of names as perilous names is restricted to such situations. Affected taxon names: Clostridium botulinum, Clostridium putrificum, Clostridium sporogenes. Request for an opinion: Int J Syst Bacteriol 1995; 45:414. "Rejection of Clostridium putrificum and conservation of Clostridium botulinum and Clostridium sporogenes. Request for an opinion."

Int J Syst Bacteriol 1997; 47:240-241. "VIIIth International Congress of Microbiology and Applied Bacteriology. Minutes of the Meetings, 17 and 22 August 1996, Jerusalem, Israel" (from the title). These minutes include the denial of some Requests for an Opinion for which no separate Judicial Opinions were published. Affected taxon names: Sarcina ventriculi. Request for an opinion: Int J Syst Bacteriol 1994; 44:591-593. "Phylogenetic placement of Sarcina ventriculi and Sarcina maxima within group I Clostridium, a possible problem for future revision of the genus Clostridium. Request for an opinion."

Int J Syst Bacteriol 1996; 46:835. Pediococcus acidilactici is conserved with neotype strain B213c (= DSM 20284), which replaces NCDO 1859. One of the cases in which a name is conserved in combination with a particular circumscription. Affected taxon names: Pediococcus acidilactici. Request for an opinion: Int J Syst Bacteriol 1993; 43:860-863. "Characterization of Pediococcus pentosaceus and Pediococcus acidilactici strains and replacement of the type strain of P. acidilactici with the proposed neotype DSM 20284. Request for an opinion."

Int J Syst Bacteriol 1995; 45:195-196. "Minutes of the Meetings, 2 and 6 July 1994, Prague, Czech Republic" (from the title). These minutes include the denial of some Requests for an Opinion for which no separate Judicial Opinions were published. Affected taxon names: Agrobacterium. Requests for an opinion: Int J Syst Bacteriol 1993; 43:694-702. "Proposal for Rejection of Agrobacterium tumefaciens and Revised Descriptions for the Genus Agrobacterium and for Agrobacterium radiobacter and Agrobacterium rhizogenes." — Int J Syst Bacteriol 1994; 44:373-374. "Request for a Judicial Opinion concerning the type species of Agrobacterium."

Int J Syst Bacteriol 1993; 43:392. The name Citrobacter diversus Werkman and Gillen 1932 is placed on the list of nomina rejicienda because it was incorrectly used by Ewing and Davis in 1972 as the name for a new species that cannot be considered identical to the organism described by Werkman and Gillen and thus is a nomen dubium. (Only rejection of names, no conservation of counterparts.) Affected taxon names: Citrobacter diversum, Citrobacter diversus corrig.. Request for an opinion: Int J Syst Bacteriol 1990; 40:107-108. "Correct names of the species Citrobacter koseri, Levinea malonatica, and Citrobacter diversus. Request for an opinion."

Int J Syst Bacteriol 1994; 44:178-179. "Actions of the Judicial Commission of the International Committee on Systematic Bacteriology on Requests for Opinions Published Between January 1985 and July 1993" (from the title). Affected taxon names: Methanothrix, Lactobacillus casei, Methanothrix soehngenii, Pediococcus acidilactici, Rhodococcus ruber, Xanthomonas maltophilia. Requests for an opinion: Int J Syst Bacteriol 1985; 35:124-125. "Priority of Rhodococcus lentifragmentus (Kruse 1896; Tsukamura et al. 1975) Tsukamura 1978 comb. nov. over Rhodococcus ruber (Kruse 1896) Goodfellow and Alderson 1980. Request for an Opinion." — Int J Syst Bacteriol 1986; 36:579-580. "Request for an Opinion. Conservation of the name Pediococcus acidilactici with DSM 20284 as the neotype strain and rejection of the previous neotype strain NCDO 1859 (= IFO 3884 = DSM 20333 = ATCC 33314)." — Int J Syst Bacteriol 1991; 41:340-342. "Designation of ATCC 334 in place of ATCC 393 (NCDO 161) as the neotype strain of Lactobacillus casei subsp. casei and rejection of the name Lactobacillus paracasei (Collins et al., 1989). Request for an opinion." — Int J Syst Bacteriol 1991; 41:588-589. "Strain GP6 is proposed as the neotype strain of Methanothrix soehngenii VP pro synon. Methanothrix concilii VP and Methanosaeta concilii VP. Request for an Opinion." — Int J Syst Bacteriol 1992; 42:193-198. "Reinterpretation of the taxonomic position of Xanthomonas maltophilia and taxonomic criteria in this genus. Request for an opinion."

Int J Syst Bacteriol 1993; 43:391. The type strain of Streptococcus mitis is NS 51 (NCTC 12261), replacing NCTC 3165. Affected taxon names: Streptococcus mitis. Requests for an opinion: Int J Syst Bacteriol 1989; 39:207-209. "Rejection of the type strain of Streptococcus mitis (Andrewes and Horder 1906). Request for an opinion." — Int J Syst Bacteriol 1989; 39:498-499. "Replacement of the type strain of Streptococcus mitis. Request for an opinion."

Int J Syst Bacteriol 1992; 42:655. The type strain of Selenomonas sputigena is VPI D 19B-28 (ATCC 35185), replacing VPI 10068 (ATCC 33150). Affected taxon names: Selenomonas sputigena. Request for an opinion: Int J Syst Bacteriol 1985; 35:371-374. "Replacement of the type strain of Selenomonas sputigena under Rule 18g. Request for an opinion."

Int J Syst Bacteriol 1992; 42:654. The type strain of Methanobacterium formicicum is strain MF (DSM 1535), replacing strain M.o.H. (DSM 863). Methanobacterium bryantii is reinstated with its type strain M.o.H. (DSM 863). Affected taxon names: Methanobacterium bryantii, Methanobacterium formicicum. Request for an opinion: Int J Syst Bacteriol 1987; 37:172-173. "Replacement of the type strain of Methanobacterium formicicum and reinstatement of Methanobacterium bryantii sp. nov. nom. rev. (ex Balch and Wolfe, 1981) with M.o.H. (DSM 863) as the type strain. Request for an opinion."

Int J Syst Bacteriol 1991; 41:185-187. "Minutes of the Meeting, 14 September 1990, Osaka, Japan" (from the title). These minutes include the denial of some Requests for an Opinion for which no separate Judicial Opinions were published. Affected taxon names: Erwinia carnegieana, Pectobacterium carnegieana. Request for an opinion: Int J Syst Bacteriol 1988; 38:132-134. "Request for an opinion. Rejection of the names Erwinia carnegieana Standring 1942 and Pectobacterium carnegieana (Standring 1942) Brenner, Steigerwalt, Miklos and Fanning 1973."

Int J Syst Bacteriol 1986; 36:492. The type species Methanosarcina methanica is rejected and the genus Methanosarcina is conserved with Methanosarcina barkeri as the type species. In this Opinion there is no direct relationship between rejected and conserved names; what is established by “conservation” is a given name with another cirumscription (another type species). Affected taxon names: Methanosarcina, Methanosarcina barkeri, Methanosarcina methanica. Request for an opinion: Int J Syst Bacteriol 1984; 34:266-267. "Rejection of the type species of Methanosarcina methanica (Approved Lists, 1980), conservation of the genus Methanosarcina with Methanosarcina barkeri (Approved Lists, 1980) as the type species, and emendation of the genus Methanosarcina. Request for an opinion."

Int J Syst Bacteriol 1986; 36:577-578. "Minutes of the Meeting, 6 August 1982, Boston, Massachusetts" (from the title). These minutes include the denial of some Requests for an Opinion for which no separate Judicial Opinions were published. Affected taxon names: Enterobacteriaceae, Enterobacteriaceae, Flavobacterium, Spirochaeta, Flavobacterium aquaticum, Flavobacterium aquatile corrig., Serratia liquefaciens, Serratia proteamaculans, Spirochaeta plicatilis, Spirochaeta stenostreptum. Requests for an opinion: Int J Syst Bacteriol 1979; 29:265-266. "Proposal of Enterobacteraceae nom. nov. as a substitute for the illegitimate but conserved name Enterobacteriaceae Rahn 1937. Request for an opinion." — Int J Syst Bacteriol 1979; 29:416-426. "Proposal that Flavobacterium breve be substituted as the type species of the genus in place of Flavobacterium aquatile and emended description of the genus Flavobacterium: status of the named species of Flavobacterium. Request for an Opinion." — Int J Syst Bacteriol 1980; 30:220-222. "Proposal to conserve the specific epithet liquefaciens over the specific epithet proteamaculans in the name of the organism currently known as Serratia liquefaciens (Grimes and Hennerty 1931) Bascomb et al. 1971. Request for an Opinion." — Int J Syst Bacteriol 1981; 31:105-106. "Proposal that Spirochaeta stenostrepta Zuelzer replace Spirochaeta plicatilis Ehrenberg as the type spcies of the genus Spirochaeta Ehrenberg. Request for an Opinion." — Int J Syst Bacteriol 1981; 31:211-212. "Comment on the Request to the Judicial Commission to conserve the specific epithet liquefaciens over the specific epithet proteamaculans in the name of the organism currently known as Serratia liquefaciens."

Int J Syst Bacteriol 1986; 36:491. "Methanococcus mazei, the type species of the genus Methanococcus, is transferred to the genus Methanosarcina as Methanosarcina mazei, and the genus Methanococcus is conserved with a new type species, Methanococcus vannielii" (cited from the abstract). One of the cases in which a name is conserved in combination with a particular circumscription. Affected taxon names: Methanococcus mazei, Methanococcus vannielii. Request for an opinion: Int J Syst Bacteriol 1984; 34:263-265. "Transfer of the type species of the genus Methanococcus to the genus Methanosarcina naming it Methanosarcina mazei (Barker 1936) comb. nov. et emend. and conservation of the genus Methanococcus (Approved Lists, 1980) with Methanococcus vannielii (Approved Lists, 1980) as the type species. Request for an opinion."

Int J Syst Bacteriol 1986; 36:357-358. "Actions of the Judicial Commission of the International Committee on Systematic Bacteriology on Requests for Opinions Published in 1983 and 1984" (from the title). Affected taxon names: Micropolyspora, Listeria monocytogenes. Requests for an opinion: Int J Syst Bacteriol 1983; 33:429. "Designation of a new type strain for Listeria monocytogenes. Request for an opinion." — Int J Syst Bacteriol 1983; 33:430-433. "Conservation of the name Micropolyspora Lechevalier, Solotorovsky, and McDurmont and designation of Micropolyspora faeni Cross, Maciver, and Lacey as the type species of the genus. Request for an Opinion." — Int J Syst Bacteriol 1984; 34:505-507. "Conservation of the name Micropolyspora Lechevalier, Solotorovsky, and McDurmont over Faenia Kurup and Agre and designation of Mycropolyspora faeni Cross, Maciver, and Lacey as the type species of the genus. Amended Request for an Opinion."

Int J Syst Bacteriol 1986; 36:119. Strain ATCC 27377 is rejected as the type strain of Pasteuria ramosa but Pasteuria ramosa is conserved with the description of Metchnikoff 1888 serving as type. One of the cases in which a name is conserved in combination with a particular circumscription. Affected taxon names: Pasteuria ramosa. Request for an opinion: Int J Syst Bacteriol 1983; 33:666-671. "Assignment of ATCC 27377 to Planctomyces staleyi sp. nov. and conservation of Pasteuria ramosa Metchnikoff 1888 on the basis of type descriptive material. Request for an opinion."

Int J Syst Bacteriol 1985; 35:540. The name Yersinia pseudotuberculosis subsp. pestis (van Loghem) Bercovier et al. 1981 is rejected. Together with Opinion 69, this is one of the two examples for the rejection of names combined with the conservation of names in order to retain two distinct nomenspecies. As regulated by Rule 56a (5) Note 1, the treatment of names as perilous names is restricted to such situations. Affected taxon names: Yersinia pestis, Yersinia pseudotuberculosis subsp. pestis. Request for an opinion: Int J Syst Bacteriol 1984; 34:268-269. "Proposal to reject the new combination Yersinia pseudotuberculosis subsp. pestis for violation of the first principle of the International Code of Nomenclature of Bacteria. Request for an opinion."

Int J Syst Bacteriol 1985; 35:539. NCIB 11664 is designated as the type strain of Acetobacter aceti subsp. xylinum in place of strain ATCC 23767. Affected taxon names: Acetobacter aceti subsp. xylinus corrig.. Request for an opinion: Int J Syst Bacteriol 1983; 33:122-124. "Rediscovery of Bertrand's sorbose bacterium (Acetobacter aceti subsp. xylinum): proposal to designate NCIB 11664 in place of NCIB 4112 (ATCC 23767) as the type strain of Acetobacter aceti subsp. xylinum. Request for an opinion."

Int J Syst Bacteriol 1985; 35:538. The nomenclatural types cited in the Approved Lists are confirmed as the correct types. Pasteurella gallicida is rejected. (Only rejection of names, no conservation of counterparts.) Affected taxon names: Nocardia, Pasteurella, Pasteurella gallicida. Request for an opinion: Int J Syst Bacteriol 1982; 32:459-460. "Status of nomenclatural types in the Approved Lists of Bacterial Names 1980. Request for an opinion."

Int J Syst Bacteriol 1984; 34:272-273. "Actions of the Judicial Commission of the International Committee on Systematic Bacteriology on Requests for Opinions Published in 1982" (from the title). Affected taxon names: Enterobacteriaceae, Enterobacteriaceae, Nocardia farcinica. Requests for an opinion: Int J Syst Bacteriol 1982; 32:235-236. "Rejection of the name Nocardia farcinica Trevisan 1889 (Approved Lists 1980). Request for an Opinion." — Int J Syst Bacteriol 1982; 32:383. "Escherichiaceae nom. nov., a name to replace Enterobacteriaceae. Request for an Opinion."

Int J Syst Bacteriol 1983; 33:434. Eubacterium limosum (Eggerth) Prévot 1938 is the type species of Eubacterium Prévot 1938. Affected taxon names: Eubacterium limosum. Request for an opinion: Int J Syst Bacteriol 1981; 31:209-210. "Designation of Eubacterium limosum (Eggerth) Prévot as the type species of Eubacterium. Request for an Opinion."

Int J Syst Bacteriol 1982; 32:468. Peptococcus anaerobius (Hamm) Douglas 1957 is rejected: "The species name Peptococcus anaerobius (Hamm) Douglas 1957 is placed on the list of nomina rejicienda as a nomen dubium and a nomen perplexum because it is a source of confusion." Request for an opinion: Int J Syst Bacteriol 1973; 23:283-289. "Placement of the name Peptococcus anaerobius (Hamm) Douglas on the list of Nomina rejicienda. Request for an opinion."

Int J Syst Bacteriol 1982; 32:467. Mycobacterium aquae Jenkins et al. 1972 is rejected: "The species name Mycobacterium aquae Jenkins et al. 1972 is placed on the list of nomina rejicienda as a nomen ambiguum because it is a source of confusion." Affected taxon names: "Mycobacterium aquae". Request for an opinion: Int J Syst Bacteriol 1974; 24:532-533. "Rejection of Mycobacterium aquae. Request for an Opinion."

Int J Syst Bacteriol 1982; 32:466. Pseudomonas denitrificans (Christensen) Bergey et al. 1923 is rejected. “The species name Pseudomonas denitrificans (Christensen) Bergey et al. 1923 is placed on the list of nomina rejicienda as a nomen ambiguum because it is a source of confusion.” Request for an opinion: Int J Syst Bacteriol 1974; 24:294-300. "Taxonomic validity of Pseudomonas denitrificans (Christensen) Bergey et al. Request for an opinion."

Int J Syst Bacteriol 1979; 29:267-269. "Minutes of the Meeting, 3 September 1978. Munich, West Germany" (from the title). Affected taxon names: Achromobacter, "Cyanobacteriales", Edwardsiella anguillimortifera, Edwardsiella tarda, Spirillum volutans, Oceanospirillum maris subsp. williamsae. Requests for an opinion: Int J Syst Bacteriol 1973; 23:20-27. "Designation of Spirillum volutans Ehrenberg 1832 as Type Species of the Genus Spirillum Ehrenberg 1832 and Designation of the Neotype Strain of S. volutans. Request for an Opinion." — Int J Syst Bacteriol 1974; 24:534-550. "Emended descriptions of the genus Alcaligenes and of Alcaligenes faecalis and proposal that the generic name Achromobacter be rejected. Status of the named species of Alcaligenes and Achromobacter. Request for an opinion." — Int J Syst Bacteriol 1976; 26:293-294. "Proposal to conserve the specific epithet tarda over the specific epithet anguillimortiferum in the name of the organism presently know as Edwardsiella tarda: Request for an opinion." — Int J Syst Bacteriol 1978; 28:132-138. "Occurrence of two organisms in cultures of the type strain of Spirillum lunatum: proposal for rejection of the name Spirillum lunatum and characterization of Oceanospirillum maris subsp. williamsae and an unclassified vibrioid bacterium. Request for an Opinion." — Int J Syst Bacteriol 1978; 28:332-333. "Validation of Cyanobacteriales Stanier in Gibbons and Murray 1978 as a new order of the kingdom Procaryotae Murray 1968, and of the use of neuter plural endings for Photobacteria and Scotobacteria classes nov. Gibbons and Murray 1978. Request for an Opinion."

Int J Syst Bacteriol 1978; 28:334. Mycobacterium marianum is rejected: "The species name Mycobacterium marianum Penso 1953 is placed on the list of nomina rejicienda as a nomen perplexum because it is a source of confusion." Request for an opinion: Int J Syst Bacteriol 1975; 25:230-231. "Proposal to reject the specific epithet marianum in the name Mycobacterium marianum Penso 1953 and to conserve the specific epithet scrofulaceum in the name Mycobacterium scrofulaceum Prissick and Masson 1956. Request for an opinion."

Int J Syst Bacteriol 1976; 26:292. Conservation of Pediococcus Claussen 1903 over earlier homotypic synonyms. (Conservation of a name over all earlier homotypic synonyms; for some reason these were also regarded as not being validly published.) Affected taxon names: Pediococcus. Request for an opinion: Int J Syst Bacteriol 1974; 24:301-306. "Nomenclatural Problems of the Pediococci. Request for an opinion."

Int J Syst Bacteriol 1974; 24:552. Conservation of the epithet of Mycobacterium fortuitum da Costa Cruz 1938 over Mycobacterium ranae Bergey et al. 1923 and over epithets in names of their synonyms. (Only conservation of an epithet, and over all earlier homotypic synonyms.) Affected taxon names: Mycobacterium fortuitum. Request for an opinion: Int J Syst Bacteriol 1972; 22:50-51. "Conservation of the specific epithet fortuitum in the name of the organism known as Mycobacterium fortuitum da Costa Cruz. Request for an opinion."

Int J Syst Bacteriol 1974; 24:551-552. Conservation of Lactobacillus fermentum Beijerinck 1901 over the epithets in all other objective synonyms. (Only conservation of an epithet, and over all earlier homotypic synonyms.) Affected taxon names: Lactobacillus, Lactobacillus fermentum. Request for an opinion: Int J Syst Bacteriol 1971; 21:177-186. "Nomenclatural considerations of certain species of Lactobacillus Beijerinck: Request for an Opinion."

Int J Syst Bacteriol 1974; 24:551. Conservation of Rhodopseudomonas Czurda and Maresch 1937 emend. van Niel 1944 over all earlier homotypic synonyms. (Only conservation of a name, and over all earlier homotypic synonyms.) Affected taxon names: Rhodopseudomonas. Request for an opinion: Int J Syst Bacteriol 1969; 19:153-154. "Proposal to declare Rhodopseudomonas palustris and Chloropseudomonas ethylica as nomina conservanda."

Int J Syst Bacteriol 1974; 24:379-380. "Minutes of Meeting, 29 August 1973. Jerusalem, Israel" (from the title). Affected taxon names: "Nitrosocystis oceanus", Nitrosospira briensis. Request for an opinion: Int J Syst Bacteriol 1971; 21:254-270. "Taxonomic considerations of the family Nitrobacteriaceae Buchanan. Requests for opinions."

Int J Syst Bacteriol 1973; 23:473-474. Rejection of Aerobacter liquefaciens Beijerinck 1900. Conservation of Aeromonas Stanier 1943. Affected taxon names: Aeromonas. Request for an opinion: Int J Syst Bacteriol 1971; 21:87-90. "Status of the Names Aeromonas and Aerobacter liquefaciens Beijerinck and Designation of a Neotype Strain for Aeromonas hydrophila Stanier."

Int J Syst Bacteriol 1973; 23:472. Conservation of the specific epithet in Mycobacterium avium: "The specific epithet avium is conserved against the specific epithet tuberculosis-gallinarum and all earlier objective synonyms in the scientific name of the agent of avian tuberculosis." (Only conservation of an epithet, and over all earlier homotypic synonyms.) Affected taxon names: Mycobacterium avium. Request for an opinion: Int J Syst Bacteriol 1971; 21:190-191. "Mycobacterium avium Chester. Request for an Opinion."

Int J Syst Bacteriol 1971; 21:110. Rejection of Aerobacter Beijerinck 1900: "The generic name Aerobacter Beijerinck 1900 is held to be a nomen ambiguum and is placed in the list of rejected generic names by the Judicial Commission." (Only rejection of names, no conservation of counterparts.) Request for an opinion: Int J Syst Bacteriol 1970; 20:221-224. "A request to the Judicial Commission that Aerobacter Beijerinck 1900 and Aerobacter Hormaeche and Edwards 1958 be declared rejected generic names."

Int J Syst Bacteriol 1971; 21:109-110. Rejection of Leuconostoc citrovorum (Hammer 1920) Hucker and Pederson 1931: "The name Leuconostoc citrovorum (Hammer 1920) Hucker and Pederson 1931, together with its objective synonyms, is regarded as a nomen dubium and is placed in the list of rejected names." (Only rejection of names, no conservation of counterparts.) Request for an opinion: Int J Syst Bacteriol 1969; 19:283-290. "Request for an Opinion that the name Leuconostoc citrovorum be rejected and the name Leuconostoc cremoris be conserved."

Int J Syst Bacteriol 1971; 21:109. Chloropseudomonas Czurda and Maresch 1937 is validly published. Note: The Request for an Opinion on which this Judicial Opinion is based is identical to the one for No. 49. Affected taxon names: "Chloropseudomonas".

Int J Syst Bacteriol 1971; 21:108. The specific epithet in the name Rhodopseudomonas sphaeroides van Niel 1944 is conserved against the specific epithet of the earlier heterotypic synonym Rhodococcus minor and against the specific epithets in the names of all earlier homotypic synonyms. (Only conservation of an epithet, and over all earlier homotypic synonyms.) Affected taxon names: Rhodopseudomonas sphaeroides. Request for an opinion: Int J Syst Bacteriol 1969; 19:155-156. "Proposal to declare Rhodopseudomonas spheroides as nomen conservandum."

Int J Syst Bacteriol 1971; 21:107. "Conservation of the Specific Epithet "phenylpyruvica" in the Name Moraxella phenylpyruvica Boevre and Henriksen" (cited from the title). (Only conservation of an epithet, and over all earlier homotypic synonyms.) Affected taxon names: Moraxella phenylpyruvica. Request for an opinion: Int J Syst Bacteriol 1967; 17:343-360. "A revised description of Moraxella polymorpha Flamm 1957, with a proposal of a new name, Moraxella phenylpyrouvica for this species."

Int J Syst Bacteriol 1971; 21:106. "Conservation of the Generic Name Moraxella Lwoff" (cited from the title): "The generic name Moraxella Lwoff 1939 is conserved over Diplobacillus McNab 1904 and over all earlier objective synonyms." Affected taxon names: Moraxella. Request for an opinion: Int J Syst Bacteriol 1960; 10:231-237. "Moraxella. The standing in nomenclature of various proposed names."

Int J Syst Bacteriol 1971; 21:105-106. "Rejection of the Names Mima De Bord and Herellea De Bord and of the Specific Epithets polymorpha and vaginicola in Mima polymorpha De Bord and Herellea vaginicola De Bord, Respectively" (cited from the title). (Only rejection of names, no conservation of counterparts.) Affected taxon names: "Herellea". Request for an opinion: Int J Syst Bacteriol 1963; 13:51-57. "Mimeae. The standing in nomenclature of the names of this tribus and of its genera and species."

Int J Syst Bacteriol 1971; 21:104-105. "Rejection of the Generic Name Gaffkya Trevisan" (cited from the title). (Only rejection of names, no conservation of counterparts.) Request for an opinion: Int J Syst Bacteriol 1965; 15:177-179. "Proposal for the rejection of the bacterial generic name Gaffkya."

Int J Syst Bacteriol 1971; 21:104. "Conservation of the Generic Name Lactobacillus Beijerinck" (cited from the title). In this Opinion there is no direct relationship between rejected and conserved names: "The generic name Lactobacillus Beijerinck 1901 is conserved over Saccharobacillus van Laer 1892 and all earlier objective synonyms." Affected taxon names: Lactobacillus. Request for an opinion: Int J Syst Bacteriol 1971; 21:86. "Conservation of the Generic Name Lactobacillus Beijerinck with a New Type Species. Request for an opinion."

Int J Syst Bacteriol 1970; 20:17-18. "Designation of Strain ATCC 13525 as the Neotype Strain of Pseudomonas fluorescens Migula" (cited from the title). Affected taxon names: Pseudomonas fluorescens. Request for an opinion: Int J Syst Bacteriol 1964; 14:145-155. "The proposed neotype strains of Pseudomonas fluorescens (Trevisan) Migula 1895."

Int J Syst Bacteriol 1970; 20:15-16. "Designation of Strain ATCC 10145 as the Neotype Strain of Pseudomonas aeruginosa (Schroeter) Migula" (cited from the title). Affected taxon names: Pseudomonas aeruginosa. Request for an opinion: Int J Syst Bacteriol 1964; 14:69-84. "The proposed Neotype Strains of Pseudomonas aeruginosa (Schroeter 1872) Migula 1900. Request for an opinion."

Int J Syst Bacteriol 1970; 20:13-14. "Conservation of the Specific Epithet meningitidis in the scientific name of the Meningococcus" (cited from the title). (Only conservation of an epithet, and over all earlier homotypic synonyms.) Affected taxon names: Neisseria meningitidis. Request for an opinion: Int J Syst Bacteriol 1962; 12:37-46. "The correct name for the meningococcus (Diplococcus intracellularis meningitidis Weichselbaum). Request for an opinion. Preliminary statement."

Int J Syst Bacteriol 1970; 20:11-12. "Conservation of the Generic Name Rhizobium Frank 1889" (cited from the title). (Only conservation of a name, and over all earlier homotypic synonyms.) Affected taxon names: Rhizobium. Request for an opinion: Int J Syst Bacteriol 1969; 19:123-126. "Request for an Opinion from the Judicial Commission of the International Committee on Nomenclature of Bacteria to conserve the generic name Rhizobium Frank 1889."

Int J Syst Bacteriol 1970; 20:10. "Conservation of the Generic Name Agrobacterium Conn 1942" (cited from the title). (Rejection of a name and conservation of a counterpart.) Affected taxon names: Agrobacterium. Request for an opinion: Int J Syst Bacteriol 1965; 15:43-44. "Proposal for rejection of the generic name Polymonas Lieske 1928."

Int J Syst Bacteriol 1970; 20:9. "Conservation of the Specific Epithet rhusiopathiae in the Scientific Name of the Organism Known as Erysipelothrix rhusiopathiae (Migula 1900) Buchanan 1918" (cited from the title). (Only conservation of an epithet, and over all earlier homotypic synonyms.) Affected taxon names: Erysipelothrix rhusiopathiae. Request for an opinion: Int J Syst Bacteriol 1966; 16:195-196. "Status of the species name Erysipelothrix rhusiopathiae with request for an Opinion."

Int J Syst Bacteriol 1965; 15:185-186. "Conservation of Vibrio Pacini 1854 as a Bacterial Generic Name, Conservation of Vibrio cholerae Pacini 1854 as the Nomenclatural Type Species of the Bacterial Genus Vibrio, and Designation of Neotype Strain of Vibrio cholerae Pacini" (cited from the title). Rejection of the zoological name Vibrio Müller 1773 and conservation of its counterpart. Also conservation of this name with a new cirumscription, establishing its nomenclatural type. Affected taxon names: Vibrio, Vibrio cholerae. Request for an opinion: Int J Syst Bacteriol 1964; 14:87-101. "The Proposed Conservation of the Generic Name Vibrio Pacini 1854 and Designation of the Neotype Strain of Vibrio cholerae Pacini 1854. Request for an opinion."

Int J Syst Bacteriol 1963; 13:167. "Conservation of the specific epithet faecalis in the species name Streptococcus faecalis Andrews and Horder 1906" (cited from the title). (Only conservation of an epithet, and over all earlier homotypic synonyms. However, the phrasing would indicate that this implied the rejection of the competing epithets, which does not correspond to current regulations.) Affected taxon names: Streptococcus faecalis. Request for an opinion: Int J Syst Bacteriol 1963; 13:111-118. "Subcommittee on the Taxonomy of the Streptococci and Pneumococci: Minutes of the Third Meeting."

Int J Syst Bacteriol 1963; 13:123-124. "Designation of strain ATCC 3004 (IMRU 3004) as the neotype strain of Streptomyces albus (Rossi Doria) Waksman and Henrici" (cited from the title). Affected taxon names: Streptomyces albus. Request for an opinion: Int J Syst Bacteriol 1962; 12:65. "Proposal for the recognition of the neotype strain of Streptomyces albus (Rossi-Doria) Waksman and Henrici 1943, p. 339. Request for an opinion."

Int J Syst Bacteriol 1963; 13:38. "Rejection of the Bacterial Generic Name Cloaca Castellani and Chalmers and Acceptance of Enterobacter Hormaeche and Edwards as a Bacterial Generic Name with Type Species Enterobacter cloacae (Jordan) Hormaeche and Edwards" (cited from the title). (Rejection of a name and conservation of a counterpart.) Affected taxon names: Enterobacter. Request for an opinion: Int J Syst Bacteriol 1960; 10:75-76. "Proposal for the Rejection of the Generic Name Cloaca Castellani and Chalmers, and Proposal of Enterobacter as a Generic Name with Designation of Type Species and of its Type Culture. With request for an opinion."

Int J Syst Bacteriol 1963; 13:37. "Designation of the neotype strain of Streptococcus agalactiae Lehmann and Neumann" (cited from the title). Affected taxon names: Streptococcus agalactiae. Request for an opinion: Int J Syst Bacteriol 1961; 11:21. "Report of panel on choice of type culture for Streptococcus agalactiae Lehmann and Neumann."

Int J Syst Bacteriol 1963; 13:35-36. "Designation of Neotype Strains (Cultures) of Type Species of the Bacterial Genera Salmonella, Shigella, Arizona, Escherichia, Citrobacter and Proteus of the Family Enterobacteriaceae" (cited from the title). Affected taxon names: Citrobacter, Escherichia, Proteus, Salmonella, Shigella. Request for an opinion: Int J Syst Bacteriol 1959; 9:105-109. "Designation of Neotype Cultures of the Type Species of Certain Genera of the Family Enterobacteriaceae: Salmonella, Shigella, Arizona, Escherichia, Citrobacter and Proteus. Preliminary statement."

Int J Syst Bacteriol 1963; 13:33-35. "Rejection of Names of Bacteria in Certain Publications of Trécul, Hallier, Billroth, and Ogston" (cited from the title).(Only rejection of names, no conservation of counterparts. The phrasing would imply that the rejected names lose standing in nomenclature. In modern parlance, this would mean that they are not validly published. However, current revisions of the Code do not link the rejection of names with becoming not validly published.) Affected taxon names: Micrococcus. Request for an opinion: Int J Syst Bacteriol 1959; 9:185-194. "Request for an opinion relative to nomenclatural standing and acceptance of certain publications of Trécul, Hallier, Billroth and Ogston. Preliminary statement."

Int J Syst Bacteriol 1958; 8:171-172. "Rejection of the Generic Name Arthrobacter Fischer 1895 and Conservation of the Generic Name Arthrobacter Conn and Dimmick 1947" (cited from the title). The Opinion further indicates: "The name Arthrobacter proposed in 1895 as the name of a hypothetical genus of bacteria was not validly published and has no standing in nomenclature." Current revisions of the Code distinguish between rejected names and names that are not validly published. Affected taxon names: Arthrobacter. Request for an opinion: Int J Syst Bacteriol 1955; 5:83-84. "The status of the generic names Arthrobacter Fischer and Arthrobacter Conn and Dimmick. Preliminary statement."

Int J Syst Bacteriol 1958; 8:169-170. "Rejection of the Generic Names Nitromonas Winogradsky 1890 and Nitromonas Orla-Jensen 1909, Conservation of the Generic Names Nitrosomonas Winogradsky 1892, Nitrosococcus Winogradsky 1892, and Nitrobacter Winogradsky 1892, and the Designation of the Type Species of these Genera" (cited from the title). In the case of Nitrosomonas Winogradsky 1892, conservation of a name and rejection ot its counterparts. In the case of Nitrosococcus Winogradsky 1892 and Nitrobacter Winogradsky 1892 conservation only for establishing a nomenclatural type. Note: This Judicial Opinion does not cite any specific Request for an Opinion. Affected taxon names: Nitrobacter, Nitrosococcus, Nitrosomonas.

Int J Syst Bacteriol 1958; 8:166-168. "Status of the Generic Name Asterococcus and Conservation of the Generic Name Mycoplasma" (cited from the title). (Only conservation but no rejection of a name, and over all earlier homotypic synonyms.) It was also noted in this Opinion that the name over which Mycoplasma was conserved, Asterococcus Borrel et al. 1910, is illegitimate. Current revisions of the Code would imply that an illegitimate name may not be used anyway, hence conservation over an illegitimate name is unnecessary. Affected taxon names: Mycoplasma. Request for an opinion: Int J Syst Bacteriol 1955; 5:13-20. "The status and synonymy of the bacterial generic name Asterococcus. Preliminary statement."

Int J Syst Bacteriol 1958; 8:163-165. "Conservation of the Generic Name Selenomonas von Prowazek" (cited from the title). (Only conservation of a name, and with a new nomenclatural type.) Note: This Judicial Opinion does not cite any specific Request for an Opinion. Affected taxon names: Selenomonas.

Int J Syst Bacteriol 1958; 8:160-162. "Status of New Generic Names of Bacteria Published Without Names of Included Species" (cited from the title). Note: The Request for an Opinion on which this Opinion is based was published in an unusual journal, Bacteriological Reviews. Affected taxon names: Nitrobacter, Selenomonas.

Int J Syst Bacteriol 1958; 8:158-159. "Conservation of the Generic Name Rickettsia da Rocha-Lima and of the Species Name Rickettsia prowazekii da Rocha-Lima" (cited from the title). (Only conservation of a name and an epithet, and each over one earlier homotypic synonym.) Affected taxon names: Rickettsia, Rickettsia prowazekii. Request for an opinion: Int J Syst Bacteriol 1952; 2:69-70. "Conservation of the Generic Name Rickettsia and of the Specific Epithet prowazekii in the Species Name Rickettsia prowazekii. Request for an opinion. File No. 39."

Int J Syst Bacteriol 1963; 13:31-33. "Conservation of typhi in the binary combination Salmonella typhi" (cited from the title). (Only conservation of an epithet, and over a single earlier homotypic synonym.) Affected taxon names: Salmonella typhi. Request for an opinion: Int J Syst Bacteriol 1955; 5:165-168. "Salmonella typhosa versus Salmonella typhi. A request for an opinion."

Int J Syst Bacteriol 1958; 8:153-154. "Conservation of the Generic Name Staphylococcus Rosenbach, Designation of Staphylococcus aureus Rosenbach as the Nomenclatural Type of the Genus Staphylococcus aureus Rosenbach, and Designation of a Neotype Culture of Staphylococcus aureus Rosenbach" (cited from the title). (Only conservation of a name, and with a new nomenclatural type.) Affected taxon names: Staphylococcus. Request for an opinion: Int J Syst Bacteriol 1953; 3:129-133. "The Status of the Generic Names Micrococcus and Staphylococcus and of the Species Name Staphylococcus aureus. Request for an opinion. File No. 23."

Int J Syst Bacteriol 1958; 8:151-152. "Conservation of the Generic Name Chromobacterium Bergonzini 1880 and Designation of the Type Species and the Neotype Culture of the Type Species" (cited from the title). (Conservation of a name, with a new nomenclatural type, and rejection it s counterpart Chromobacterium Bergonzini 1879.) Affected taxon names: Chromobacterium. Request for an opinion: Int J Syst Bacteriol 1956; 6:65-91. "Conservation of the generic name Chromobacterium and designation of type species and type strains: Request for an opinion. Request for an opinion."

Int J Syst Bacteriol 1958; 8:73-74. "Conservation of the Family Name Enterobacteriaceae, of the Name of the Type Genus, and Designation of the Type Species" (cited from the title). (Only conservation of a name, and with a new nomenclatural type.) Affected taxon names: Enterobacteriaceae, Enterobacteriaceae, Enterobacter, Escherichia. Request for an opinion: Int J Syst Bacteriol 1957; 7:165-166. "Proposal to conserve the family name Enterobacteriaceae and to designate the type genus."

Int J Syst Bacteriol 1954; 4:156-158. "Names of Bacterial Genera to be Rejected as later Synonyms of Names of Genera of Protozoa" (cited from the title). (Only rejection of names, no conservation of counterparts.) Affected taxon names: Rhizomonas, Rhizomonas suberifaciens. Request for an opinion: Int J Syst Bacteriol 1951; 1:103-112. "The Legitimacy of Certain Generic Homonyms in Bacteriology and Protozoology."

Int J Syst Bacteriol 1954; 4:151-156. "Conservation and Rejection of Names of Genera of Bacteria Proposed by Trevisan 1842-1890" (cited from the title). In this Opinion there is no direct relationship between rejected and conserved names. Contraray to the information provided in Appendix 5 of the ICNP (Parker et al. 2019), this Opinion did not treat Nocardia. Affected taxon names: Beggiatoa, Klebsiella, Kurthia, Leptotrichia, Neisseria, Pasteurella. Request for an opinion: Int J Syst Bacteriol 1953; 3:87-108. "Status of Generic Names of Bacteria Proposed by Trevisan. Preliminary Statement. File 56."

Int J Syst Bacteriol 1954; 4:150-151. "Conservation of Listeria Pirie 1940 as a Generic Name in Bacteriology" (cited from the title). (Only conservation of a name, and against a homonym used in botany.) Affected taxon names: Listeria. Request for an opinion: Int J Syst Bacteriol 1953; 3:85-86. "Status of Listeria Pirie 1940 as a Generic Name in Bacteriology. Preliminary statement. File 49."

Int J Syst Bacteriol 1954; 4:148-150. "Nomenclature of Species in the Bacterial Genus Shigella" (cited from the title). (Only conservation of epithets, and against each other.) Affected taxon names: Shigella, Shigella boydii, Shigella flexneri, Shigella sonnei. Request for an opinion: Int J Syst Bacteriol 1951; 1:147-149. "Shigella Species Nomenclature and Citation of Authority. Request for an opinion by the Judicial Commission."

Int J Syst Bacteriol 1954; 4:147-148. "Invalidity of the Bacterial Generic Name Müllerina de Petschenko 1910 and of the Species Name Müllerina paramecii" (cited from the title). Affected taxon names: "Drepanospira". Request for an opinion: Int J Syst Bacteriol 1952; 2:9-10. "The Generic Names Müllerina and Drepanospira in Bacteriology. Preliminary statement. File No. 52."

Int J Syst Bacteriol 1954; 4:146-147. "Conservation of the Bacterial Generic Name Gallionella" (cited from the title). (Only conservation of a name, and against a homonym used in botany.) Affected taxon names: Gallionella. Request for an opinion: Int J Syst Bacteriol 1952; 2:96-103. "Status of Gallionella Ehrenberg as a Generic Name in Bacteriology. Preliminary statement. File No. 49."

Int J Syst Bacteriol 1954; 4:145-146. "The Correct Species Name of the Streptococcus of Bovine Mastitis" (cited from the title). (Only conservation of a name, and over all earlier homotypic synonyms.) Affected taxon names: Streptococcus agalactiae. Request for an opinion: Int J Syst Bacteriol 1952; 2:104-106. "The Correct Species Name of the Streptococcus of Bovine Mastitis. File No. 37."

Int J Syst Bacteriol 1954; 4:144. "Nomenclature of the Organism Associated with Granuloma Venereum" (cited from the title). Affected taxon names: Calymmatobacterium granulomatis. Request for an opinion: Int J Syst Bacteriol 1953; 3:17-20. "The Nomenclature of the Bacterium Found in Granuloma Venereum."

Int J Syst Bacteriol 1954; 4:143. "Conservation of the Generic Name Chlorobacterium Lauterborn 1915 against Chlorobacterium Guillebeau 1890" (cited from the title). (Rejection of a name and conservation of a counterpart.) Affected taxon names: "Chlorobacterium". Request for an opinion: Int J Syst Bacteriol 1951; 1:43-44. "Chlorobacterium Guillebeau 1890 vs. Chlorobacterium Lauterborn 1915, and the Status of Chlorobacteriaceae Lauterborn 1913. Preliminary Statement. File No. 8."

Int J Syst Bacteriol 1952; 2:121-122. "Conservation of the Generic Name Pseudomonas Migula 1894 and Designation of Pseudomonas aeruginosa (Schroeter) Migula 1900 as Type Species" (cited from the title). (Only conservation of a name, and with a new nomenclatural type.) Affected taxon names: Pseudomonas. Request for an opinion: Int J Syst Bacteriol 1951; 1:41-42. "Status of Pseudomonas Migula 1894 as a Generic Name, and of Pseudomonas aeruginosa (Schröter) Migula 1900 as Type Species. Preliminary statement. File No. 7."

Int J Syst Bacteriol 1954; 4:141-142. "Rejection of the Generic Name Bacterium" (cited from the title). Targeted Bacterium Lehmann and Neumann 1896 and also the name Bacteriaceae. (Only rejection of names, no conservation of counterparts.) Affected taxon names: "Bacterium". Request for an opinion: Int J Syst Bacteriol 1952; 2:92-93. "Conservation of the Generic Name Bacterium and the Family Name Bacteriaceae."

Int J Syst Bacteriol 1951; 1:36-37. "The Gender of Generic Names Ending in -Bacter" (cited from the title). This fixes genus names ending in -bacter as having the masculine gender. Note: This Judicial Opinion does not cite any references. Affected taxon names: Acetobacter aceti subsp. xylinus corrig..

Int J Syst Bacteriol 1951; 1:37-38. "The combining forms (stems) of compound bacterial generic names ending in -bacterium, -bacter, or -bactrum (-bactron)" (from the title). This fixes the stem of these epithets as -bacteri-, -bacter- and -bactr-, respectively. Note: This Judicial Opinion does not cite any references. Affected taxon names: "Myxobacter".

Int J Syst Bacteriol 1951; 1:35-36. "The correct spelling of the specific epithet in the species name Bacillus megaterium de Bary 1884" (from the title). This fixes megaterium as the spelling of the epithet. Note: This Judicial Opinion does not cite a specific Request for an Opinion. Affected taxon names: Bacillus megaterium.