sp. nov., isolated from the faecal material of an alpaca.

A strictly anaerobic, Gram-stain-negative rod-shaped bacterium, designated A1-XYC3, was isolated from the faeces of an alpaca (). On the basis of the results of a comparative 16S rRNA gene sequence analysis, the isolate was assigned to the genus with the highest sequence similarities to DSM 2767 (96.8 %), P7 (96.3 %) and JW/YJL-B3 (96.1 %). The average nucleotide identity between A1-XYC3, and . was 77.4, 76.1 and 76.6  %, respectively. The predominant components of the cellular fatty acids of A1-XYC3 were C, C and summed feature 10, containing C/C cyclo. The DNA G+C content was 32.4 mol%. On the basis of biochemical, phylogenetic, genotypic and chemotaxonomic criteria, this isolate represents a novel species within for which the name sp. nov. is proposed. The type strain of this species is strain A1-XYC3 (=CCM 9376=NRRL B-65691).