Abstract
Although the organism isolated from whale muscle sent in from Aomori prefecture is apparently identical with B. chauvoei and B. oedematis maligni, it can be definitely distinguished from these organisms biologically and serologically.
For differentiating the isolated organism from B. oedematiens and the bacillus of whale septicaemia (Christiansen), there were unfortunately no typical strains in our hand; so it is impossible to give any explanation regarding the relationships between the isolated organism and these anaerobes. But it should be placed into B. oedematiens group from the pathological lesions produced in the guinea-pig and a high pathogenicity for the rabbit.
