hymenobacter marinus hymenobacter marinus hymenobacter marinus is a gram-negative and non-motile bacterium from the genus of hymenobacter which has been isolated from coastal seawater from the sea of japan on korea. hymenobacter marinus scientific classification domain: bacteria phylum: bacteroidota class: cytophagia order: cytophagales family: hymenobacteraceae genus: hymenobacter species: h. marinus binomial name hymenobacter marinuskang et al. 2016 type strain cect 9069, kj035, kctc 42854