Following a proposal to emend Appendix 9 of the International Code of Nomenclature of Prokaryotes with guidelines for the naming of genera after geographical locations, I here report the outcome of the ballot on this proposal by the members of the International Committee on Systematics of Prokaryotes and present the guidelines to be incorporated in Appendix 9.

Following an electronic discussion on proposals to emend Principle 8, Rules 5b, 8, 15, 33a, and Appendix 7 of the International Code of Nomenclature of Prokaryotes (ICNP), I here report the outcome of the ballot on these proposals by the members of the International Committee on Systematics of Prokaryotes. These emendations enact the addition of the categories of kingdom and domain to the ICNP.

Following an electronic discussion on proposals to emend Rules 8, 15, 22, 25a, 30(3)(b), 30(4), 34a, and Appendix 7 of the International Code of Nomenclature of Prokaryotes, I here report the outcome of the ballot on these proposals by the members of the International Committee on Systematics of Prokaryotes.

To complete the ongoing revision of the International Code of Nomenclature of Prokaryotes, we here propose emendation of Rules 8, 15, 22, 25a, 30(3)(b), 30(4), 34a and Appendix 7. These proposed emendations deal with: the nomenclatural type of taxa above genus; the suitability of names published in supplementary material or in papers published on e-print servers for effective publication; the number of culture collection designations to be included in an effective publication of a name of a species or subspecies to qualify for validation of the name; the kinds of restrictions that may be attached to deposits of type strains; and the question whether elevation of a subspecies to the rank of species or lowering of a species to the rank of subspecies establish new combinations. Some of these emendations change the meaning of the Code while others are mere textual clarifications.

We describe a new species of Plagioporus Stafford, 1904 infecting the intestine of two catostomids in the eastern USA. We emend Plagioporus to account for Nearctic congeners having ceca terminating at the level of the testes (previously diagnosed as having ceca terminating in the post-testicular space only) and testes in the posterior body extremity (a feature not previously considered as having generic importance). Of the accepted Nearctic species, Plagioporus wataugaensis n. sp. resembles Plagioporus serotinus Stafford, 1904, Plagioporus hypentelii Hendrix, 1973, and Plagioporus hageli Fayton and Andres, 2016 but differs from them by the distribution of the vitellarium and proportional length and relative extent of the excretory vesicle. Plagioporus wataugaensis has vitelline fields that are discontinuous at the level of the ventral sucker (vs. continuous in P. serotinus and P. hypentelii) and follicles that surround the ceca (vs. wholly ventral to the ceca in P. hageli) and that span the midline dorsal to the testes (vs. slightly overlapping the lateral margins of the testes). The excretory vesicle of P. wataugaensis is wholly post-testicular and short (6-9% of the body length) (vs. reaching the level of the posterior testis, 14-24% of the body length). Phylogenetic analyses of the 28S, ITS1, 5.8S, and ITS2 rDNA recovered P. wataugaensis sister to Plagioporus sinitsini Mueller, 1934. A key to the Nearctic Plagioporus spp. is provided. We regard Plagioporus shawi (McIntosh, 1939) Margolis, 1970, Plagioporus serratus Miller, 1940, and Plagioporus loboides (Curran, Overstreet, and Tkach, 2007) Fayton and Andres, 2016 as incertae sedis.

The International Journal of Systematic and Evolutionary Microbiology (IJSEM) will move to \'true continuous publication\' during the first months of 2021 to modernize the workflow and align it with the current online-only nature of the journal. In the new format, articles will be cited using an article number rather than page numbering. The article number will be the Digital Object Identifier (DOI) suffix, i.e., the last six digits of the DOI. Benefits of the new system include streamlining in-house processes, hence, reducing time and costs, and speeding up the publication time of the final \'Version of Record\'. Because of the new format of the IJSEM, it is necessary to emend Rule 24b (2) and Note 1 paragraph 3 of Rule 27 of the International Code of Nomenclature of Prokaryotes (ICNP) to regulate matters of priority for papers published after January 2021. We also propose adding another example to Note 2 of Rule 33b to clarify how nomenclatural authorities of names published in the IJSEM from 2021 onward must be cited.

Recently, articles were published in this journal in which new combinations were published based on basonyms that were not validly published at the time of submission, or a name not yet validly published was proposed as a later heterotypic synonym of another name. We here wish to remind authors and editors of the relevant rules of the International Code of Nomenclature of Prokaryotes that regulate the procedure for valid publication of names and specifically, of the fact that names in online pre-publication articles in the journal\'s website are not validly published.

Seven strains of an unidentifiable Corynebacterium species recovered from blood cultures, urine or cerebrospinal fluid over 26 years, closest to but differentiated from Corynebacterium imitans by 16S rRNA gene and partial rpoB gene sequencing, were studied. In November 2017, Atasayar et al. described a blood culture isolate as Corynebacterium gottingense sp. nov., which had >99 % similarity by 16S rRNA gene sequencing to the Canadian strains. In January 2018, Jani et al. described Corynebacterium godavarianum sp. nov., recovered from the Godavari River, India, which also had >99 % similarity by 16S/rpoB sequencing to the Canadian strains and C. gottingense. In May 2018, Wei et al. described Corynebacterium hadale recovered from hadopelagic water; this too had >99 % similarity by 16S rRNA gene sequencing to C. gottingense, C. godavarianum and the Canadian strains. C. gottingense DSM 103494T and C. godavarianum LMG 29598T were acquired and whole genome sequencing was performed (not previously done). Results were compared with genomes from C. hadale (GenBank accession NQMQ01) and the Canadian isolates. We found that these ten genomes formed a single taxon when compared using digital DNA-DNAhybridization, average nucleotide identity using blastn and average amino acid identity criteria but exhibited some subtle biochemical and chemotaxonomic differences. Heuristically, we propose that C. godavarianum and C. hadale are later heterotypic synonyms of, and the Canadian isolates are identifiable as, C. gottingense. We provide an emended description of Corynebacterium gottingense Atasayar et al. 2017; genomes ranged from 2.48 to 2.69 Mb (C. gottingense DSM 103494T, 2.62 Mb) with G+C content of 65.1-65.6 mol% (WGS), recovered from clinical and environmental sites.

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