exiguobacterium marinum exiguobacterium marinum exiguobacterium marinum is a bacterium from the genus of exiguobacterium. exiguobacterium marinum scientific classification domain: bacteria phylum: bacillota class: bacilli order: bacillales family: bacillaceae genus: exiguobacterium species: e. marinum binomial name exiguobacterium marinumkim et al. 2005 type strain kctc 19036