oceanobacillus oncorhynchi oceanobacillus oncorhynchi oceanobacillus oncorhynchi is a halotolerant, obligately alkaliphilic bacterium first isolated from the skin of a rainbow trout (oncorhynchus mykiss), hence its name. it is gram-positive, rod-shaped and motile by peritrichous flagella and produces ellipsoidal spores. the type strain is r-2(t) (=jcm 12661(t) =ncimb 14022(t)). oceanobacillus oncorhynchi scientific classification domain: bacteria phylum: bacillota class: bacilli order: bacillales family: bacillaceae genus: oceanobacillus species: o. oncorhynchi binomial name oceanobacillus oncorhynchiyumoto et al. 2005