actinomyces actinomycetemcomitans actinomyces actinomycetemcomitans "actinomyces actinomycetemcomitans" is a species in the genus actinomyces. actinomyces actinomycetemcomitans scientific classification domain: bacteria phylum: actinomycetota class: actinomycetia order: actinomycetales family: actinomycetaceae genus: actinomyces species: a. actinomycetemcomitans binomial name actinomyces actinomycetemcomitansiinuma et al. 1994