xanthomarina gelatinilytica xanthomarina gelatinilytica xanthomarina gelatinilytica is a gram-negative, rod-shaped, non-spore-forming and non-motile bacterium from the genus of xanthomarina which has been isolated from seawater from kōchi city. xanthomarina gelatinilytica scientific classification domain: bacteria phylum: bacteroidota class: flavobacteriia order: flavobacteriales family: flavobacteriaceae genus: xanthomarina species: x. gelatinilytica binomial name xanthomarina gelatinilyticavaidya et al. 2015 type strain ak20