Description of Candidatus Cottocaccomicrobium excrementipullorum sp. nov.

Candidatus Cottocaccomicrobium 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 CHK179-5732 and which is available via NCBI BioSample SAMN15816932. The GC content of the type genome is 47.54% and the genome length is 3.4 Mbp.

Description of Candidatus Cryptobacteroides gen. nov.

Candidatus Cryptobacteroides (Cryp.to.bac.te.ro’i.des. Gr. masc. adj. kryptos hidden; N.L. masc. n. Bacteroides a genus name; N.L. masc. n. Cryptobacteroides a genus related to the genus Bacteroides but distinct from it)

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 Cryptobacteroides avicola. This is a name for the alphanumeric GTDB genus RC9. 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 UBA932.

Description of Candidatus Cryptobacteroides avicola sp. nov.

Candidatus Cryptobacteroides 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 G3-8215 and which is available via NCBI BioSample SAMN15817056. The GC content of the type genome is 49.81% and the genome length is 2.6 Mbp.

Description of Candidatus Cryptobacteroides avistercoris sp. nov.

Candidatus Cryptobacteroides 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 B3-1481 and which is available via NCBI BioSample SAMN15817057. The GC content of the type genome is 59.28% and the genome length is 1.6 Mbp.

Description of Candidatus Cryptobacteroides excrementavium sp. nov.

Candidatus Cryptobacteroides 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 B2-16538 and which is available via NCBI BioSample SAMN15817059. The GC content of the type genome is 50.29% and the genome length is 2.1 Mbp.

Description of Candidatus Cryptobacteroides excrementigallinarum sp. nov.

Candidatus Cryptobacteroides 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 ChiHecolR1B25-7735 and which is available via NCBI BioSample SAMN15817167. This is a new name for the alphanumeric GTDB species sp900543205. The GC content of the type genome is 57.80% and the genome length is 1.8 Mbp.

Description of Candidatus Cryptobacteroides excrementipullorum sp. nov.

Candidatus Cryptobacteroides excrementipullorum (ex.cre.men.ti.pul.lo’rum. L. neut. n. excrementum excrement; L. masc. gen. pl. n. pullorum of young chickens; 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 2478 and which is available via NCBI BioSample SAMN15817061. The GC content of the type genome is 52.35% and the genome length is 2.5 Mbp.

Description of Candidatus Cryptobacteroides faecavium sp. nov.

Candidatus Cryptobacteroides 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 B2-22910 and which is available via NCBI BioSample SAMN15817063. The GC content of the type genome is 52.41% and the genome length is 2.4 Mbp.