pseudoalteromonas arctica pseudoalteromonas arctica pseudoalteromonas arctica is a marine bacterium collected from spitzbergen in the arctic. pseudoalteromonas arctica scientific classification domain: bacteria phylum: pseudomonadota class: gammaproteobacteria order: alteromonadales family: pseudoalteromonadaceae genus: pseudoalteromonas binomial name pseudoalteromonas arcticakhudary et al., 2008 synonyms pseudomonas arcticakhudary et al., 2008