lewinella antarctica lewinella antarctica lewinella antarctica is a gram-negative, obligately aerobic and chemoheterotrophic bacterium from the genus of lewinella which has been isolated from coastal seawater from the antarctic. lewinella antarctica scientific classification domain: bacteria phylum: bacteroidota class: saprospiria order: saprospirales family: lewinellaceae genus: lewinella species: l. antarctica binomial name lewinella antarcticaoh et al. 2009 type strain kccm 42688, nbrc 103142, imcc3223