algoriphagus ratkowskyi algoriphagus ratkowskyi algoriphagus ratkowskyi is a bacterium. it is non-motile, strictly aerobic and saccharolytic. algoriphagus ratkowskyi scientific classification domain: bacteria phylum: bacteroidota class: cytophagia order: cytophagales family: cyclobacteriaceae genus: algoriphagus species: a. ratkowskyi binomial name algoriphagus ratkowskyibowman et al. 2003