henriciella pelagia henriciella pelagia henriciella pelagia is a gram-negative, aerobic, short-rod-shaped and motile bacterium from the genus of henriciella which has been isolated from seawater from the eastern pacific ocean. henriciella pelagia scientific classification domain: bacteria phylum: pseudomonadota class: alphaproteobacteria order: caulobacterales family: hyphomonadaceae genus: henriciella species: h. pelagia binomial name henriciella pelagiawu et al. 2017 type strain la220