corallibacter corallibacter corallibacter is a gram-negative, strictly aerobic and heterotrophic genus of bacteria from the family of flavobacteriaceae with one known species (corallibacter vietnamensis). corallibacter scientific classification domain: bacteria phylum: bacteroidota class: flavobacteria order: flavobacteriales family: flavobacteriaceae genus: corallibacterkim et al. 2012 type species corallibacter vietnamensis species c. vietnamensis