marinifilum breve marinifilum breve marinifilum breve is a gram-negative, facultatively anaerobic, short-clavate and non-motile bacterium from the genus of marinifilum which has been from the yongle blue hole from the south china sea. marinifilum breve scientific classification domain: bacteria phylum: bacteroidota class: bacteroidia order: bacteroidales family: marinifilaceae genus: marinifilum species: m. breve binomial name marinifilum brevefu et al. 2018 type strain jcm 32401, kctc 15646, mccc 1k03477, jc075