clostridium colinum clostridium colinum clostridium colinum is a gram-positive, anaerobic and spore-forming bacterium from the genus clostridium which has been isolated from a chicken. clostridium colinum can cause ulcerative enteritis in chicken. clostridium colinum scientific classification domain: bacteria phylum: bacillota class: clostridia order: eubacteriales family: clostridiaceae genus: clostridium species: c. colinum binomial name clostridium colinum(ex berkhoff et al. 1974) berkhoff 1985 type strain 72042, atcc 27770, ccm 3932, ccug 21927, dsm 6011, jcm 5831