aerococcus viridans aerococcus viridans aerococcus viridans is a member of the bacterial genus aerococcus. it is a causative agent of gaffkaemia, a disease of lobsters, and is used as a commercial source for lactate oxidase. aerococcus viridans scientific classification domain: bacteria phylum: bacillota class: bacilli order: lactobacillales family: aerococcaceae genus: aerococcus species: a. viridans binomial name aerococcus viridans