flavobacterium ceti flavobacterium ceti flavobacterium ceti is a gram-negative bacterium from the genus of flavobacterium which has been isolated from the lung and liver of the whale ziphius cavirostris. flavobacterium ceti scientific classification domain: bacteria phylum: bacteroidota class: flavobacteriia order: flavobacteriales family: flavobacteriaceae genus: flavobacterium species: f. ceti binomial name flavobacterium cetivela et al. 2007 type strain 454-2, ccug 52969, cect 7184, cect 7184, cip 109811 synonyms cetobacillus canariasensis