pseudoalteromonas atlantica pseudoalteromonas atlantica pseudoalteromonas atlantica is a marine bacterium, which has been shown to act as a primary producer of biofilms and exhibit virulence against cancer pagurus, a species of crab, through secretion of extracellular products. pseudoalteromonas atlantica scientific classification domain: bacteria phylum: pseudomonadota class: gammaproteobacteria order: alteromonadales family: pseudoalteromonadaceae genus: pseudoalteromonas binomial name pseudoalteromonas atlantica(akagawa-matsushita et al., 1992) gauthier et al., 1995 type strain atcc 19262 cip 104721 iam 12927 ncimb 301 jcm 8845 synonyms alteromonas atlantica akagawa-matsushita et al., 1992 pseudomonas atlantica humm