haloimpatiens massiliensis haloimpatiens massiliensis haloimpatiens massiliensis is a gram-positive, anaerobic and rod-shaped bacterium from the genus of haloimpatiens which has been isolated from the gut of an infant from marseille. haloimpatiens massiliensis scientific classification domain: bacteria phylum: bacillota class: clostridia family: clostridiaceae genus: haloimpatiens species: h. massiliensis binomial name haloimpatiens massiliensisanani et al. 2020 type strain marseille-p1935 synonyms khelaifiella massiliensis khelaifiabacterium massiliensis