mesonia mesonia mesonia is a strictly aerobic and chemoorganotrophic genus of bacteria from the family of flavobacteriaceae. mesonia scientific classification domain: bacteria phylum: bacteroidota class: flavobacteriia order: flavobacteriales family: flavobacteriaceae genus: mesonianedashkovskaya et al. 2003 species m. algae m. aquimarina m. hippocampi m. maritima m. maritimus m. mobilis m. oceanica m. ostreae m. phycicola m. sediminis