抄録
Determinative studies were carried out with yeasts isolated from oil-brines and related materials obtained from oil-fields in Japan, and the following species were identified: Sporobolomyces japonica, new species, 1 strain; Rhodotorula rubra (Demme) Lodder, 25 strains; and Rh. glutinis (Fres.) Harrison var. rufusa, new variety, 7 strains. The species found in oil-brines differ from those of soil, and all isolates were the so-called red yeast which produce carotenoid pigments.