dehalogenimonas formicexedens dehalogenimonas formicexedens dehalogenimonas formicexedens is a gram-negative, strictly anaerobic and non-spore-forming bacterium from the genus of dehalogenimonas which has been isolated from contaminated groundwater in louisiana in the united states. dehalogenimonas formicexedens scientific classification domain: bacteria phylum: chloroflexota class: dehalococcoidia order: dehalococcoidales family: dehalococcoidaceae genus: dehalogenimonas species: d. formicexedens binomial name dehalogenimonas formicexedenskey et al. 2017 type strain hambi 3672, jcm 19277, vkm b-3058, nsz-14