Description of Candidatus Phocaeicola merdigallinarum sp. nov.

Candidatus Phocaeicola merdigallinarum (mer.di.gal.li.na’rum. L. fem. n. merda faeces; L. fem. n. gallina hen; N.L. gen. n. merdigallinarum 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 17689 and which is available via NCBI BioSample SAMN15816829. This is a new name for the alphanumeric GTDB species sp900066455. The GC content of the type genome is 46.19% and the genome length is 3.3 Mbp.

Description of Candidatus Prevotella avicola sp. nov.

Candidatus Prevotella 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 ChiHecec3B27-8219 and which is available via NCBI BioSample SAMN15816846. This is a new name for the alphanumeric GTDB species sp000435635. The GC content of the type genome is 51.22% and the genome length is 1.9 Mbp.

Description of Candidatus Prevotella intestinigallinarum sp. nov.

Candidatus Prevotella 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 146 and which is available via NCBI BioSample SAMN15816872. This is a new name for the alphanumeric GTDB species sp900540415. The GC content of the type genome is 56.37% and the genome length is 2.9 Mbp.

Description of Candidatus Prevotella stercoripullorum sp. nov.

Candidatus Prevotella 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 USASDec6-549 and which is available via NCBI BioSample SAMN15816866. This is a new name for the alphanumeric GTDB species sp900554045. The GC content of the type genome is 53.35% and the genome length is 2.5 Mbp.

Description of Candidatus Protoclostridium stercorigallinarum sp. nov.

Candidatus Protoclostridium 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 12435 and which is available via NCBI BioSample SAMN15816772. The GC content of the type genome is 56.70% and the genome length is 1.7 Mbp.

Description of Candidatus Pseudogracilibacillus intestinigallinarum sp. nov.

Candidatus Pseudogracilibacillus 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 CHK169-2315 and which is available via NCBI BioSample SAMN15816775. The GC content of the type genome is 35.03% and the genome length is 2.5 Mbp.

Description of Candidatus Pseudomonas excrementavium sp. nov.

Candidatus Pseudomonas excrementavium (ex.cre.ment.a’vi.um. L. neut. n. excrementum excrement; L. fem. n. avis bird; N.L. gen. n. excrementavium of bird 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 CHK174-787 and which is available via NCBI BioSample SAMN15816898. Although GTDB has assigned this species to the genus it calls Pseudomonas_D, this genus designation cannot be incorporated into a well-formed binomial, so in naming this species, we have used the current validly published name for the genus. The GC content of the type genome is 61.84% and the genome length is 3.0 Mbp.