virgibacillus arcticus virgibacillus arcticus virgibacillus arcticus is a moderately halophilic, endospore-forming bacterium originally isolated from permafrost in the canadian high arctic. its type strain is hal1t (=dsm 19574t =jcm 14839t). virgibacillus arcticus scientific classification domain: bacteria phylum: bacillota class: bacilli order: bacillales family: bacillaceae genus: virgibacillus species: v. arcticus binomial name virgibacillus arcticusniederberger et al. 2009