Description of Candidatus Onthenecus gen. nov.

Candidatus Onthenecus (Onth.en.e’cus. Gr. masc. n. onthos dung; Gr. masc. enoikos inhabitant; N.L. masc. n. Onthenecus a microbe associated with faeces)

A bacterial genus identified by metagenomic analyses. The genus includes all bacteria with genomes that show ≥60% average amino acid identity (AAI) to the type genome from the type species Candidatus Onthenecus intestinigallinarum. This is a name for the alphanumeric GTDB genus OEMS01. This genus has been assigned by GTDB-Tk v1.3.0 working on GTDB Release 05-RS95 (Chaumeil et al., 2019; Parks et al., 2020) to the order Christensenellales and to the family CAG-74.

Description of Candidatus Onthenecus intestinigallinarum sp. nov.

Candidatus Onthenecus intestinigallinarum (in.tes.ti.ni.gal.li.na’rum. L. neut. n. intestinum gut; L. fem. n. gallina hen; N.L. gen. n. intestinigallinarum of the gut of the hens)

A bacterial species identified by metagenomic analyses. This species includes all bacteria with genomes that show ≥95% average nucleotide identity (ANI) to the type genome, which has been assigned the MAG ID ChiSxjej2B14-6234 and which is available via NCBI BioSample SAMN15817054. The GC content of the type genome is 66.20% and the genome length is 2.4 Mbp.

Description of Candidatus Onthocola gen. nov.

Candidatus Onthocola (On.tho’co.la. Gr. masc. n. onthos dung; L. suff. -cola inhabitant of; N.L. fem. n. Onthocola a microbe associated with faeces)

A bacterial genus identified by metagenomic analyses. The genus includes all bacteria with genomes that show ≥60% average amino acid identity (AAI) to the type genome from the type species Candidatus Onthocola gallistercoris. This is a name for the alphanumeric GTDB genus. This genus has been assigned by GTDB-Tk v1.3.0 working on GTDB Release 05-RS95 (Chaumeil et al., 2019; Parks et al., 2020) to the order Lachnospirales and to the family Lachnospiraceae.

Description of Candidatus Onthocola gallistercoris sp. nov.

Candidatus Onthocola gallistercoris (gal.li.ster’co.ris. L. masc. n gallus chicken; L. neut. n. stercus dung; N.L. gen. n. gallistercoris of chicken faeces)

A bacterial species identified by metagenomic analyses. This species includes all bacteria with genomes that show ≥95% average nucleotide identity (ANI) to the type genome, which has been assigned the MAG ID CHK187-14744 and which is available via NCBI BioSample SAMN15817044. The GC content of the type genome is 48.32% and the genome length is 2.4 Mbp.

Description of Candidatus Onthocola stercoravium sp. nov.

Candidatus Onthocola stercoravium (ster.cor.a’vi.um. L. neut. n. stercus dung; L. fem. n. avis bird; N.L. gen. n. stercoravium of bird faeces)

A bacterial species identified by metagenomic analyses. This species includes all bacteria with genomes that show ≥95% average nucleotide identity (ANI) to the type genome, which has been assigned the MAG ID ChiW5-5982 and which is available via NCBI BioSample SAMN15817021. The GC content of the type genome is 28.08% and the genome length is 1.4 Mbp.

Description of Candidatus Onthocola stercorigallinarum sp. nov.

Candidatus Onthocola stercorigallinarum (ster.co.ri.gal.li.na’rum. L. neut. n. stercus dung; L. fem. n. gallina hen; N.L. gen. n. stercorigallinarum of hen faeces)

A bacterial species identified by metagenomic analyses. This species includes all bacteria with genomes that show ≥95% average nucleotide identity (ANI) to the type genome, which has been assigned the MAG ID CHK195-3072 and which is available via NCBI BioSample SAMN15817046. The GC content of the type genome is 27.21% and the genome length is 1.3 Mbp.

Description of Candidatus Onthomonas gen. nov.

Candidatus Onthomonas (On.tho.mo’nas. Gr. masc. n. onthos dung; L. fem. n. monas a monad; N.L. fem. n. Onthomonas a microbe associated with faeces)

A bacterial genus identified by metagenomic analyses. The genus includes all bacteria with genomes that show ≥60% average amino acid identity (AAI) to the type genome from the type species Candidatus Onthomonas avicola. This is a name for the alphanumeric GTDB genus NK3B98. This genus has been assigned by GTDB-Tk v1.3.0 working on GTDB Release 05-RS95 (Chaumeil et al., 2019; Parks et al., 2020) to the order Oscillospirales and to the family Oscillospiraceae.

Description of Candidatus Onthomonas avicola sp. nov.

Candidatus Onthomonas avicola (a.vi’co.la. L. fem. n. avis bird; L. suff. -cola inhabitant of; N.L. n. avicola inhabitant of birds)

A bacterial species identified by metagenomic analyses. This species includes all bacteria with genomes that show ≥95% average nucleotide identity (ANI) to the type genome, which has been assigned the MAG ID ChiGjej6B6-14002 and which is available via NCBI BioSample SAMN15817096. The GC content of the type genome is 63.01% and the genome length is 2.4 Mbp.