muribaculum intestinale muribaculum intestinale muribaculum intestinale is a strictly anaerobic bacterium from the genus of muribaculum which has been isolated from the caecal content of a mouse in zurich in switzerland. muribaculum intestinale scientific classification domain: bacteria phylum: bacteroidota class: bacteroidia order: bacteroidales family: muribaculaceae genus: muribaculum species: m. intestinale binomial name muribaculum intestinalelagkouvardos et al. 2016 type strain dsm 28989, kctc 15537, yl27