siansivirga jejuensis siansivirga jejuensis siansivirga jejuensis is a bacterium from the genus of siansivirga which has been isolated from seawater from the jeju island. siansivirga jejuensis scientific classification domain: bacteria phylum: bacteroidota class: flavobacteriia order: flavobacteriales family: flavobacteriaceae genus: siansivirga species: s. jejuensis binomial name siansivirga jejuensispark et al. 2015 synonyms siansivirga jejunensis