Actinomyces howellii Dent & Williams, 1984 Dataset Catalogue of Life Checklist Rank SPECIES Classification kingdom Bacteria phylum Actinobacteria order Actinomycetales family Actinomycetaceae genus Actinomyces species Actinomyces howellii Name Homonyms Actinomyces howellii Dent & Williams, 1984