抄録
The antigenic structure of five species of the genus Saccharomyces was ex-amined by the slide agglutination method with monospecific and absorbed antisera.
1) S. fragilis, S. marxianus, S. macedoniensis and Zygosacch. marxianus are antigenically identical with C. pseudotropicalis of asporogenous yeasts.
2) S. cerevisiae and S. ellipsoideus are antigenically identical with C. robusta.The species name of S. marxianus and S. cerevisiae should be accepted. The other species name of the genus Saccharomyces mentioned above cannot be recognized, and it is better to have the name of C. pseudotropicalis changed.
The authors wish to thank Profs. T. Akiba and Y. Takahashi for their kind advices and suggestions.