"Hallella faecis" Hitch et al. 2022 Dataset NCBI Taxonomy Classification phylum Bacteroidota class Bacteroidia order Bacteroidales family Prevotellaceae genus Hallella species Hallella faecis Name Homonyms Hallella faecis "Hallella faecis" Hitch et al. 2022 Hallella faecis Hitch et al. 2023