siansivirga siansivirga siansivirga is a genus of bacteria from the family of flavobacteriaceae. siansivirga scientific classification domain: bacteria phylum: bacteroidota class: flavobacteriia order: flavobacteriales family: flavobacteriaceae genus: siansivirgahameed et al. 2013 type species siansivirga zeaxanthinifaciens species s. jejuensis s. zeaxanthinifaciens