arcobacter cloacae arcobacter cloacae arcobacter cloacae is a species of bacteria first isolated from sewage. its type strain is sw28-13t (=cect 7834t = lmg 26153t). arcobacter cloacae scientific classification domain: bacteria phylum: campylobacterota class: "campylobacteria" order: campylobacterales family: arcobacteraceae genus: arcobacter species: a. cloacaelevican et al. 2013 binomial name arcobacter cloacae