clostridium herbivorans clostridium herbivorans clostridium herbivorans is a gram-positive, cellulolytic and motile bacterium from the genus clostridium which has been isolated from the intestinal tract of pigs. clostridium herbivorans scientific classification domain: bacteria phylum: bacillota class: clostridia order: eubacteriales family: clostridiaceae genus: clostridium species: c. herbivorans binomial name clostridium herbivoransvarel et al. 1995 type strain 54408, atcc 49925, cip 104610, dsm 14428 vtt e-052845