thalassomonas actiniarum thalassomonas actiniarum thalassomonas actiniarum is a heterotrophic bacterium from the genus of thalassomonas which has been isolated from marine animals. thalassomonas actiniarum scientific classification domain: bacteria phylum: pseudomonadota class: gammaproteobacteria order: alteromonadales family: colwelliaceae genus: thalassomonas species: t. actiniarum binomial name thalassomonas actiniarumhosoya et al. 2009 type strain mbic 08328, nbrc 104231, ncimb 14418, a5k-106