jejudonia jejudonia jejudonia is a gram-negative, rod-shaped and non-motile genus of bacteria from the family of flavobacteriaceae with one known species (jejudonia soesokkakensis). jejudonia scientific classification domain: bacteria phylum: bacteroidota class: flavobacteria order: flavobacteriales family: flavobacteriaceae genus: jejudoniapark et al. 2013 type species jejudonia soesokkakensis species j. soesokkakensis