lewinella xylanilytica lewinella xylanilytica lewinella xylanilytica is a gram-negative, rod-shaped, aerobic and non-motile bacterium from the genus of lewinella which has been isolated from coastal seawater from marado on the jeju island on korea. lewinella xylanilytica scientific classification domain: bacteria phylum: bacteroidota class: saprospiria order: saprospirales family: lewinellaceae genus: lewinella species: l. xylanilytica binomial name lewinella xylanilyticasung et al. 2015 type strain dsm 29526, kctc 32663, 13-9-b8