Description of Candidatus Aveggerthella excrementigallinarum sp. nov.

Candidatus Aveggerthella excrementigallinarum (ex.cre.men.ti.gal.li.na’rum. L. neut. n. excrementum excrement; L. fem. n. gallina hen; N.L. gen. n. excrementigallinarum of hen excrement)

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 ChiGjej4B4-3573 and which is available via NCBI BioSample SAMN15816976. The GC content of the type genome is 65.93% and the genome length is 2.0 Mbp.

Description of Candidatus Aveggerthella stercoripullorum sp. nov.

Candidatus Aveggerthella stercoripullorum (ster.co.ri.pul.lo’rum. L. neut. n. stercus dung; L. masc. n. pullus a young chicken; N.L. gen. n. stercoripullorum of the faceces of young chickens)

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 ChiGjej1B1-2707 and which is available via NCBI BioSample SAMN15816950. The GC content of the type genome is 61.50% and the genome length is 2.1 Mbp.

Description of Candidatus Avelusimicrobium gen. nov.

Candidatus Avelusimicrobium (Av.e.lu.si.mi.cro’bi.um. L. fem. n. avis bird; N.L. neut. n. Elusimicrobium a genus name; N.L. neut. n. Avelusimicrobium a genus related to the genus Elusimicrobium but distinct from it and found in poultry)

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 Avielusimicrobium excrementipullorum. 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 Elusimicrobiales and to the family Elusimicrobiaceae.

Description of Candidatus Avelusimicrobium excrementipullorum sp. nov.

Candidatus Avelusimicrobium excrementipullorum (ex.cre.men.ti.pul.lo’rum. L. neut. n. excrementum excrement; L. masc. n. pullus a young chicken; N.L. gen. n. excrementipullorum of young chicken excrement)

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 CHK136-6324 and which is available via NCBI BioSample SAMN15817002. The GC content of the type genome is 53.46% and the genome length is 1.3 Mbp.

Description of Candidatus Avibacteroides gen. nov.

Candidatus Avibacteroides (A.vi.bac.te.ro’i.des. L. fem. n. avis bird; N.L. masc. n. Bacteroides a genus name; N.L. masc. n. Avibacteroides a genus related to the genus Bacteroides but distinct from it and found in poultry)

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 Avibacteroides excrementipullorum. 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 Bacteroidales and to the family Bacteroidaceae.

Description of Candidatus Avibacteroides avistercoris sp. nov.

Candidatus Avibacteroides avistercoris (a.vi.ster’co.ris. L. fem. n. avis bird; L. neut. n. stercus dung; N.L. gen. n. avistercoris 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 MalCec1-1739 and which is available via NCBI BioSample SAMN15816974. The GC content of the type genome is 53.14% and the genome length is 2.2 Mbp.

Description of Candidatus Avibacteroides excrementipullorum sp. nov.

Candidatus Avibacteroides excrementipullorum (ex.cre.men.ti.pul.lo’rum. L. neut. n. excrementum excrement; L. masc. n. pullus a young chicken; N.L. gen. n. excrementipullorum of young chicken excrement)

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 ChiHjej12B11-16860 and which is available via NCBI BioSample SAMN15816958. The GC content of the type genome is 47.79% and the genome length is 2.2 Mbp.

Description of Candidatus Avibacteroides faecavium sp. nov.

Candidatus Avibacteroides faecavium (faec.a’vi.um. L. fem. n. faex, faecis excrement; L. fem. n. avis bird; N.L. gen. n. faecavium 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 3702 and which is available via NCBI BioSample SAMN15816980. The GC content of the type genome is 55.42% and the genome length is 2.1 Mbp.