Description of Collinsella avium sp. nov., a new member of the Collinsella genus isolated from the ceacum of feral chicken.

An obligately anaerobic, non-motile and Gram-positive rod bacterium, strain SW219 was isolated from ceacum of feral chickens. Based on 16S rRNA sequence analysis, the strain SW219 exhibited 97.88% similarity to Collinsella massiliensis strain GD3 strain, the closest valid species. The genome size of SW219 was 2.58 Mbp with 64.5 mol% of G+C content. The phenotypic and genotypic analysis suggested that the strain SW219 is a new species belonging to the family Coriobacteriaceae within the Actinobacteria phylum, which the name Collinsella avium sp. nov. is proposed. The type strain of Collinsella avium is SW219 (= DSM 109235T and = CCOS 1884T).

Genome sequence and description of Blautia brookingsii SG772 sp. nov., a novel bacterial species isolated from human faeces.

An anaerobic isolate SG772 belonging to the genus Blautia was isolated from a healthy human faecal sample. When compared using 16s rRNA sequence identity, SG772 showed only 94.46% similarity with its neighbour species Blautia stercoris. As strain SG772 showed both phenotypic and genomic differences from other members of the type species within the genus Blautia, we propose the designation of SG772 as novel species 'Blautia brookingsii SG772T'.

Sellimonas caecigallum sp. nov., description and genome sequence of a new member of the Sellimonas genus isolated from the cecum of feral chicken.

An obligately anaerobic, non-motile, Gram-positive coccobacillus strain SW451 was isolated from pooled caecum contents of feral chickens. Based on taxono-genomic, and biochemical analyses, the strain SW451 represents a new species of the genus Sellimonas, for which the name Sellimonas caecigallum sp. nov. is proposed. The type strain of Sellimonas caecigallum is SW451 (=DSM 109473T = CCOS 1879T).